Xml JavaScript Reference Documentation

Xml

Current Version: 11.5.0

Chilkat.Xml

Load, navigate, search, edit, transform, and save in-memory XML trees.

Chilkat.Xml is the primary Chilkat class for in-memory XML tree manipulation. It supports loading and saving XML, navigating between elements, reading and writing text content, managing attributes, working with namespaces, adding and removing subtrees, searching by tag, content, or attribute, sorting child records, scrubbing XML, handling CDATA and XML declarations, storing binary data as Base64, and optionally compressing or encrypting element content.

Load and save XML

Load XML from strings, files, byte data, or other Chilkat objects, then save or emit formatted XML when processing is complete.

Navigate XML trees

Move through parent, child, sibling, and selected elements while working directly with the XML document structure.

Edit elements and attributes

Add, update, remove, or rename elements; set text content; and read, add, modify, or delete attributes.

Search and select

Locate elements by tag name, content, path, attribute value, or custom search patterns.

Namespaces and structure

Work with namespace-aware XML, declarations, CDATA, child ordering, sorting, and subtree insertion or removal.

Binary and protected content

Store binary data as Base64 and optionally compress or encrypt element content when XML carries encoded payloads.

Important usage distinction: Some methods return a new Xml object reference for the selected element, while methods ending in 2 update the caller's internal reference to point to a different element. This distinction is central when navigating and editing XML trees because it determines whether the current object stays where it is or moves to another element.
Common pattern: Load or create the XML document, navigate to the element of interest, read or modify content and attributes, add or remove child elements as needed, then save the updated XML. Use Chilkat.Xml for tree-oriented XML manipulation, and use Chilkat.XmlDSig, Chilkat.XmlDSigGen, or related classes when the task is XML digital signing or signature verification.

Object Creation

Note: This is intended for running within a Chilkat.Js embedded JavaScript engine.

var obj = new CkXml();

Properties

Cdata
Cdata
· boolean

Controls how this element's text content is emitted. When set to true, the element content is written inside a CDATA section instead of being emitted as ordinary character data with XML escaping.

CDATA and escaping: CDATA is useful when text contains many characters such as < or &. It does not change the logical text value of the element; it only changes how that text is represented in the serialized XML.

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Content
Content
· string

Gets or sets the text content stored directly on this XML element. Child elements are not included in this value.

For example, both of the following elements have This is the content as their Content:

<tag1>This is the content</tag1>

<tag2><child1>abc</child1><child2>abc</child2>This is the content</tag2>
Content vs. children: Chilkat stores an element's direct text content separately from its child elements. Use the child-navigation methods when you need the nested elements themselves.

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ContentInt
ContentInt
· int

Gets or sets this element's content as a 32-bit integer. Setting the property converts the integer to its decimal text representation; getting the property interprets the element's text content as an integer.

Numeric content: Use Content when the value may exceed the range of a 32-bit integer or when the exact lexical representation must be preserved.

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DebugLogFilePath
DebugLogFilePath
· string

If set to a file path, this property logs the LastErrorText of each Chilkat method or property call to the specified file. This logging helps identify the context and history of Chilkat calls leading up to any crash or hang, aiding in debugging.

Enabling the VerboseLogging property provides more detailed information. This property is mainly used for debugging rare instances where a Chilkat method call causes a hang or crash, which should generally not happen.

Possible causes of hangs include:

  • A timeout property set to 0, indicating an infinite timeout.
  • A hang occurring within an event callback in the application code.
  • An internal bug in the Chilkat code causing the hang.

More Information and Examples
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DocType
DocType
· string

Gets or sets the document type declaration associated with the XML document.

The value represents the document-level DOCTYPE declaration, for example <!DOCTYPE note SYSTEM "note.dtd">.

Document-level setting: Although this property may be accessed from any element reference in the tree, the DOCTYPE belongs to the XML document as a whole rather than to an individual element.

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EmitBom
EmitBom
· boolean
Introduced in version 9.5.0.44

Controls whether a byte order mark (BOM, also called a preamble) is written when XML is saved to a file. The default is false.

This setting is relevant to encodings for which a BOM can be emitted, such as UTF-8 and UTF-16. It does not affect XML returned as a language string by methods such as GetXml.

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EmitCompact
EmitCompact
· boolean
Introduced in version 9.5.0.64

Controls whether XML emitted by GetXml and GetXmlSb is compact. When true, unnecessary formatting whitespace and line breaks are omitted. The default is false for backward compatibility.

Formatting only: Compact output changes presentation, not the XML tree or its element content.

More Information and Examples
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EmitXmlDecl
EmitXmlDecl
· boolean

Controls whether the XML declaration is included when XML is emitted. The default is true. When set to false, output methods such as GetXml and SaveXml omit the declaration.

An XML declaration is the leading construct such as <?xml version="1.0" encoding="utf-8"?>.

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Encoding
Encoding
· string

Gets or sets the encoding value used in the XML declaration. The default is utf-8. This is a document-level setting and may be accessed from any element in the tree.

When XML is loaded, Chilkat sets this property from the encoding declared by the input XML when one is present. If no encoding is declared, the property is reset to utf-8.

Important: Changing Encoding changes the declared/output encoding used when XML is serialized; it does not reinterpret or transcode the already-stored Unicode text inside the in-memory tree.

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I
I
· int
Introduced in version 9.5.0.64

Provides a substitution value for [i] in Chilkat tag paths and ChilkatPath expressions. When a path contains [i], the current value of this property is substituted for I.

Loop-friendly paths: The I, J, and K properties make it convenient to reuse a path expression inside nested loops without constructing a new path string for every index.

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IsBase64
IsBase64
· boolean, read-only
Introduced in version 9.5.0.76

Returns true if this element's content consists only of characters allowed in standard Base64 text, with whitespace ignored. Standard Base64 uses A-Z, a-z, 0-9, +, /, and optional trailing = padding.

Syntax check, not semantic validation: A value can contain only Base64 characters and still not represent the data your application expects. This property is useful as a quick content-format test.

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J
J
· int
Introduced in version 9.5.0.64

Provides a substitution value for [j] in Chilkat tag paths and ChilkatPath expressions. When a path contains [j], the current value of this property is substituted for J.

Loop-friendly paths: The I, J, and K properties make it convenient to reuse a path expression inside nested loops without constructing a new path string for every index.

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K
K
· int
Introduced in version 9.5.0.64

Provides a substitution value for [k] in Chilkat tag paths and ChilkatPath expressions. When a path contains [k], the current value of this property is substituted for K.

Loop-friendly paths: The I, J, and K properties make it convenient to reuse a path expression inside nested loops without constructing a new path string for every index.

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LastErrorHtml
LastErrorHtml
· string, read-only

Provides HTML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorText
LastErrorText
· string, read-only

Provides plain text information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastErrorXml
LastErrorXml
· string, read-only

Provides XML-formatted information about the last called method or property. If a method call fails or behaves unexpectedly, check this property for details. Note that information is available regardless of the method call's success.

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LastMethodSuccess
LastMethodSuccess
· boolean

Indicates the success or failure of the most recent method call: true means success, false means failure. This property remains unchanged by property setters or getters. This method is present to address challenges in checking for null or Nothing returns in certain programming languages. Note: This property does not apply to methods that return integer values or to boolean-returning methods where the boolean does not indicate success or failure.

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NumAttributes
NumAttributes
· int, read-only

Returns the number of attributes on this element.

For example, <tag attr1="value1" attr2="value2">...</tag> has two attributes. Attribute indexes used by methods such as GetAttributeName and GetAttributeValue are zero-based.

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NumChildren
NumChildren
· int, read-only

Returns the number of direct child elements of this element. Descendants below those children are not included in the count.

Direct children only: Use traversal or search methods when you need to inspect the entire subtree rather than only the immediate children.

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SortCaseInsensitive
SortCaseInsensitive
· boolean

Controls case sensitivity for the XML sorting methods. Set to true for case-insensitive string comparisons or false for case-sensitive comparisons.

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Standalone
Standalone
· boolean

Controls the standalone pseudo-attribute in the XML declaration. This is a document-level setting and may be accessed from any element in the tree.

Setting this property to true causes the declaration to include standalone="yes".

XML declaration: The standalone declaration concerns whether the document relies on external markup declarations. It is metadata in the XML declaration; it does not by itself validate or alter the document.

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Tag
Tag
· string

Gets or sets the element name for this element, including any namespace prefix. For example, the tag for <soapenv:Body> is soapenv:Body.

Use TagNsPrefix and TagUnprefixed when the prefix and local portion are needed separately.

More Information and Examples
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TagNsPrefix
TagNsPrefix
· string
Introduced in version 9.5.0.77

Gets or sets the namespace prefix portion of this element's tag. For soapenv:Envelope, the namespace prefix is soapenv.

Prefix vs. namespace URI: This property deals with the lexical prefix in the tag name. A prefix is not itself the namespace URI; namespace bindings are expressed through xmlns attributes in the XML.

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TagPath
TagPath
· string, read-only
Introduced in version 9.5.0.77

Returns the Chilkat tag path needed to reach this element from the document root. If this object currently references the root element, the returned path is the empty string.

Not XPath: A Chilkat tag path is Chilkat's own navigation syntax, typically using | between element names. It is not an XPath expression.

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TagUnprefixed
TagUnprefixed
· string
Introduced in version 9.5.0.77

Gets or sets the unprefixed portion of this element's tag. For soapenv:Envelope, the unprefixed tag is Envelope.

Use TagNsPrefix to access the prefix separately.

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TreeId
TreeId
· int, read-only

Returns the identifier of the XML tree to which this element belongs. Elements in the same XML document have the same TreeId.

Useful for element references: Multiple Xml objects can reference different elements in the same underlying tree. Comparing TreeId values is a convenient way to determine whether two element references belong to that same tree.

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UncommonOptions
UncommonOptions
· string
Introduced in version 9.5.0.90

Provides a catch-all string for uncommon XML behaviors. The default is the empty string, which is appropriate for normal use.

Leave this property empty unless Chilkat documentation or support identifies a specific option needed for a specialized interoperability case.

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VerboseLogging
VerboseLogging
· boolean

If set to true, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is false. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
Version
· string, read-only

Version of the component/library, such as "10.1.0"

More Information and Examples
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Methods

AccumulateTagContent
var strVal = AccumulateTagContent(tag, skipTags);
· return: string
· tag: string
· skipTags: string

Traverses the subtree rooted at the calling element and concatenates the text content of all elements whose tag equals tag.

skipTags is a vertical-bar-delimited list of tag names whose entire subtrees are excluded from the accumulation. For example, script|style skips elements rooted at either of those tags.

Returns null on failure

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AddAttribute
var success = AddAttribute(name, value);
· return: boolean; true for success, false for failure
· name: string
· value: string

Adds an attribute named name with the specified string value to the calling element.

Returns true on success and false on failure.

When an attribute may already exist: Use AddOrUpdateAttribute or UpdateAttribute when the desired behavior is to update an existing attribute value instead of requiring a new attribute.

Returns true for success, false for failure.

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AddAttributeInt
var success = AddAttributeInt(name, value);
· return: boolean; true for success, false for failure
· name: string
· value: int

Adds an attribute named name whose value is the decimal representation of value.

Returns true on success and false on failure.

Returns true for success, false for failure.

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AddChildTree
var success = AddChildTree(tree);
· return: boolean; true for success, false for failure
· tree: CkXml

Adds the entire XML subtree referenced by tree as a new direct child of the calling element.

If tree already belongs to another XML document, the subtree is transferred to the destination tree rather than copied as an unrelated duplicate.

Tree ownership: After moving a subtree between documents, its elements belong to the destination tree. TreeId can be used to determine which tree an element reference belongs to.

Returns true for success, false for failure.

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AddOrUpdateAttribute
AddOrUpdateAttribute(name, value);
· return: undefined
· name: string
· value: string

Sets the string value of an attribute on the calling element. If an attribute named name already exists, its value is replaced; otherwise the attribute is added.

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AddOrUpdateAttributeI
AddOrUpdateAttributeI(name, value);
· return: undefined
· name: string
· value: int

Sets an integer-valued attribute on the calling element. If an attribute named name already exists, its value is replaced with the decimal representation of value; otherwise the attribute is added.

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AddStyleSheet
AddStyleSheet(styleSheet);
· return: undefined
· styleSheet: string

Adds an XML stylesheet processing instruction to the document. Pass the complete processing-instruction text, for example:

<?xml-stylesheet href="mystyle.css" title="Compact" type="text/css"?>
Processing instruction: An XML stylesheet declaration associates stylesheet metadata with the XML document; it does not apply or execute the stylesheet.

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AddToAttribute
AddToAttribute(name, amount);
· return: undefined
· name: string
· amount: int

Treats the named attribute value as an integer, adds amount, and stores the resulting integer back in the attribute.

If the attribute does not yet exist, this method behaves like AddOrUpdateAttributeI and creates it with amount as the value.

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AddToChildContent
AddToChildContent(tag, amount);
· return: undefined
· tag: string
· amount: int

Finds the child identified by tag, interprets its content as an integer, adds amount, and stores the resulting integer as the child's new content.

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AddToContent
AddToContent(amount);
· return: undefined
· amount: int

Interprets this element's content as an integer, adds amount, and stores the resulting integer as the new content.

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AppendToContent
var success = AppendToContent(str);
· return: boolean; true for success, false for failure
· str: string

Appends str to the existing text content of the calling element without replacing its child elements.

Returns true on success and false on failure.

Returns true for success, false for failure.

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ChildContentMatches
var boolVal = ChildContentMatches(tagPath, pattern, caseSensitive);
· return: boolean
· tagPath: string
· pattern: string
· caseSensitive: boolean

Returns true if the child identified by tagPath has content matching pattern; otherwise returns false. caseSensitive controls whether letter case is significant.

The pattern may contain * wildcards, where each asterisk matches zero or more characters.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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ChilkatPath
var strVal = ChilkatPath(pathCmd);
· return: string
· pathCmd: string

Evaluates a Chilkat-specific path command that can navigate from the current element, return element content or an attribute value, or move the caller's internal element reference.

This syntax is not XPath. Commands are separated by vertical bars and the expression ends with a return command:

command|command|command|...|returnCommand

Navigation commands include:

  • TagName — first direct child having that tag.
  • TagName[n] — the indexed direct child having that tag.
  • .. — parent.
  • ++ / -- — next / previous sibling.
  • TagName{Content} — first direct child with that tag and exact content.
  • /T/TagName — traverse the subtree and find the first element with that tag.
  • /C/TagName,ContentPattern — traverse for a tag whose content matches a wildcard pattern.
  • /C/ContentPattern — traverse for any tag whose content matches a wildcard pattern.
  • /A/TagName,AttrName,AttrValuePattern — traverse for a tag having a matching attribute value.

The final return command is:

  • * — return the current element's content.
  • (AttrName) — return an attribute value.
  • $ — move this Xml object to the selected element and return an empty string.
Index substitution: The I, J, and K properties can be used with [i], [j], and [k] in path expressions.

Returns null on failure

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Clear
Clear();
· return: undefined

Clears the calling element by removing all child elements, attributes, and text content, and resets its tag name to unnamed.

The element itself remains in the tree; this method clears its contents rather than removing the element from its parent.

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ContentMatches
var boolVal = ContentMatches(pattern, caseSensitive);
· return: boolean
· pattern: string
· caseSensitive: boolean

Returns true if this element's content matches pattern; otherwise returns false. caseSensitive controls whether letter case is significant.

The pattern may contain * wildcards, where each asterisk matches zero or more characters.

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Copy
Copy(node);
· return: undefined
· node: CkXml

Copies the Tag, Content, and attributes from node to the calling element.

Not a subtree copy: This method does not copy the source element's children. Use a tree-oriented method such as AddChildTree or SwapTree when child structure is part of the operation.

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CopyRef
CopyRef(copyFromNode);
· return: undefined
· copyFromNode: CkXml

Changes this Xml object so that it references the same underlying XML element as copyFromNode. The caller's previous element reference is discarded.

Reference operation: CopyRef does not copy XML data. After the call, both Xml objects refer to the same element, so edits through either reference affect the same tree element.

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DecodeEntities
var strVal = DecodeEntities(str);
· return: string
· str: string

Decodes HTML character entities found in str and returns the decoded text. This is a utility operation; it does not modify the XML tree unless the returned string is assigned to an element.

For example, an HTML entity such as &amp; is decoded to &.

Returns null on failure

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DecryptContent
var success = DecryptContent(password);
· return: boolean; true for success, false for failure
· password: string

Decrypts element content previously produced by EncryptContent, using the same password, and restores the original plaintext content.

Returns true on success and false on failure.

Compatibility-oriented encryption: This method is paired specifically with EncryptContent. It is not a general XML Encryption (XML-Enc) implementation.

Returns true for success, false for failure.

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EncryptContent
var success = EncryptContent(password);
· return: boolean; true for success, false for failure
· password: string

Encrypts the calling element's text content using Chilkat's password-based 128-bit AES-CBC format and replaces the plaintext content with Base64-encoded encrypted data.

Returns true on success and false on failure.

Scope: Only this element's content is encrypted. The tag, attributes, and child elements are not encrypted by this method. Use DecryptContent with the same password to restore the content.

Returns true for success, false for failure.

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FindChild2
var success = FindChild2(tagPath);
· return: boolean; true for success, false for failure
· tagPath: string

Moves the calling Xml object's internal reference to the child selected by tagPath. Returns true when the child is found and the move succeeds; otherwise returns false.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.
Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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FirstChild2
var success = FirstChild2();
· return: boolean; true for success, false for failure

Moves the calling Xml object's internal reference to its first direct child. Returns true if a first child exists; otherwise returns false.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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GetAttributeName
var strVal = GetAttributeName(index);
· return: string
· index: int

Returns the name of the attribute at zero-based index. Use NumAttributes to determine the valid index range.

Returns null on failure

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GetAttributeValue
var strVal = GetAttributeValue(index);
· return: string
· index: int

Returns the value of the attribute at zero-based index. Use NumAttributes to determine the valid index range.

Returns null on failure

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GetAttributeValueInt
var intVal = GetAttributeValueInt(index);
· return: int
· index: int

Returns the value of the attribute at zero-based index, interpreted as a 32-bit integer.

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GetAttrValue
var strVal = GetAttrValue(name);
· return: string
· name: string

Returns the value of the attribute named name on the calling element.

Use HasAttribute when the application must distinguish a missing attribute from an attribute whose value is empty.

Returns null on failure

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GetAttrValueInt
var intVal = GetAttrValueInt(name);
· return: int
· name: string

Returns the value of the attribute named name interpreted as a 32-bit integer. Returns 0 if the attribute does not exist.

Ambiguous zero: Because a missing attribute and an attribute containing zero can both yield 0, call HasAttribute first when that distinction matters.

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GetChild2
var success = GetChild2(index);
· return: boolean; true for success, false for failure
· index: int

Moves the calling Xml object's internal reference to the direct child at zero-based index. Returns true on success and false if the child cannot be selected.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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GetChildAttrValue
var strVal = GetChildAttrValue(tagPath, attrName);
· return: string
· tagPath: string
· attrName: string
Introduced in version 9.5.0.77

Returns the value of attribute attrName on the descendant element selected by tagPath.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

Returns null on failure

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GetChildBoolValue
var boolVal = GetChildBoolValue(tagPath);
· return: boolean
· tagPath: string

Returns the integer content of the child selected by tagPath as a Boolean value: content equal to 0 yields false; a non-zero integer yields true.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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GetChildContent
var strVal = GetChildContent(tagPath);
· return: string
· tagPath: string

Returns the text content of the child selected by tagPath.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.
Content only: The returned value is the child element's direct Content; nested child elements are not serialized into this string.

Returns null on failure

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GetChildContentByIndex
var strVal = GetChildContentByIndex(index);
· return: string
· index: int

Returns the text content of the direct child at zero-based index. Use NumChildren to determine the valid range.

Returns null on failure

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GetChildContentSb
var success = GetChildContentSb(tagPath, sb);
· return: boolean; true for success, false for failure
· tagPath: string
· sb: CkStringBuilder
Introduced in version 9.5.0.76

Finds the element selected by tagPath and appends that element's text content to sb.

The existing contents of the StringBuilder are preserved.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

Returns true on success and false on failure.

Returns true for success, false for failure.

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GetChildIntValue
var intVal = GetChildIntValue(tagPath);
· return: int
· tagPath: string

Returns the content of the child selected by tagPath, interpreted as a 32-bit integer.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.
Integer range: Use GetChildContent and parse the returned text separately when values may exceed the range of a 32-bit integer.

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GetChildTag
var strVal = GetChildTag(index);
· return: string
· index: int

Returns the tag name of the direct child at zero-based index. Use NumChildren to determine the valid index range.

Returns null on failure

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GetChildTagByIndex
var strVal = GetChildTagByIndex(index);
· return: string
· index: int

Returns the tag name of the direct child at zero-based index. Use NumChildren to determine the valid index range.

Returns null on failure

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GetChildWithTag2
var success = GetChildWithTag2(tagPath);
· return: boolean; true for success, false for failure
· tagPath: string
Introduced in version 11.1.0

Moves the calling Xml object's internal reference to the child selected by tagPath. Returns true when the child is found and the move succeeds; otherwise returns false.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.
Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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GetNthChildWithTag2
var success = GetNthChildWithTag2(tag, n);
· return: boolean; true for success, false for failure
· tag: string
· n: int

Moves the calling Xml object's internal reference to the zero-based nth direct child whose tag equals tag. Returns true on success and false when no such child exists.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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GetParent2
var success = GetParent2();
· return: boolean; true for success, false for failure

Moves the calling Xml object's internal reference to its parent. Returns true if a parent exists; otherwise returns false when already at the root.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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GetRoot2
GetRoot2();
· return: undefined

Moves the calling Xml object's internal reference to the root element of its XML tree.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

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GetXml
var strVal = GetXml();
· return: string

Serializes the XML tree or subtree rooted at the current element and returns the XML text.

When called while positioned on the document root, the XML declaration is included if EmitXmlDecl is true. When called on a non-root element, only that subtree is emitted and the document declaration is not included.

EmitCompact, Encoding, Standalone, and related document/output properties affect serialization as applicable.

String vs. bytes: A language string is Unicode text. The Encoding declaration describes serialized XML encoding, while actual byte encoding matters when XML is written to a file or byte-oriented destination.

Returns null on failure

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GetXmlBd
var success = GetXmlBd(bd);
· return: boolean; true for success, false for failure
· bd: CkBinData
Introduced in version 9.5.0.77

Serializes the XML tree or subtree rooted at the current element and appends the encoded XML bytes to bd.

The existing contents of the BinData object are preserved. The XML output encoding is governed by the XML document's output settings, including Encoding.

Returns true on success and false on failure.

Returns true for success, false for failure.

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GetXmlSb
var success = GetXmlSb(sb);
· return: boolean; true for success, false for failure
· sb: CkStringBuilder
Introduced in version 9.5.0.62

Serializes the XML tree or subtree rooted at the current element and appends the resulting XML text to sb.

The existing contents of sb are preserved. Output properties such as EmitCompact and EmitXmlDecl apply as appropriate.

Returns true on success and false on failure.

Returns true for success, false for failure.

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HasAttribute
var boolVal = HasAttribute(name);
· return: boolean
· name: string

Returns true if the calling element has an attribute named name; otherwise returns false.

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HasAttrWithValue
var boolVal = HasAttrWithValue(name, value);
· return: boolean
· name: string
· value: string

Returns true if the calling element has an attribute named name whose value exactly equals value; otherwise returns false.

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HasChildWithContent
var boolVal = HasChildWithContent(content);
· return: boolean
· content: string

Returns true if any direct child has text content exactly equal to content; otherwise returns false.

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HasChildWithTag
var boolVal = HasChildWithTag(tagPath);
· return: boolean
· tagPath: string

Returns true if the child selected by tagPath exists; otherwise returns false.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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HasChildWithTagAndContent
var boolVal = HasChildWithTagAndContent(tagPath, content);
· return: boolean
· tagPath: string
· content: string

Returns true if the child selected by tagPath exists and its text content exactly equals content; otherwise returns false.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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InsertChildTreeAfter
InsertChildTreeAfter(index, tree);
· return: undefined
· index: int
· tree: CkXml

Inserts the entire subtree referenced by tree as a direct child immediately after the existing child at zero-based index.

If tree belongs to another XML document, the subtree is transferred to the destination tree.

Structural move: The operation preserves the subtree structure. The supplied tree is not flattened into text content.

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InsertChildTreeBefore
InsertChildTreeBefore(index, tree);
· return: undefined
· index: int
· tree: CkXml

Inserts the entire subtree referenced by tree as a direct child immediately before the existing child at zero-based index.

If tree belongs to another XML document, the subtree is transferred to the destination tree.

Structural move: The operation preserves the subtree structure. The supplied tree is not flattened into text content.

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LastChild2
var success = LastChild2();
· return: boolean; true for success, false for failure

Moves the calling Xml object's internal reference to its last direct child. Returns true if a last child exists; otherwise returns false.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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LoadBd
var success = LoadBd(bd, autoTrim);
· return: boolean; true for success, false for failure
· bd: CkBinData
· autoTrim: boolean
Introduced in version 9.5.0.77

Parses XML from the bytes contained in bd and replaces the calling object's current XML tree with the loaded document.

If autoTrim is true, leading and trailing whitespace is removed from each leaf element's text content during loading.

Returns true on success and false on failure.

Returns true for success, false for failure.

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LoadSb
var success = LoadSb(sb, autoTrim);
· return: boolean; true for success, false for failure
· sb: CkStringBuilder
· autoTrim: boolean
Introduced in version 9.5.0.62

Parses XML from the current contents of sb and replaces the calling object's current XML tree with the loaded document.

If autoTrim is true, leading and trailing whitespace is removed from each leaf element's text content while loading.

Returns true on success and false on failure.

Returns true for success, false for failure.

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LoadXml
var success = LoadXml(xmlData);
· return: boolean; true for success, false for failure
· xmlData: string

Parses the XML text in xmlData and replaces the calling object's current XML tree content with the loaded document root. Returns true if parsing succeeds.

Replacement operation: A successful load replaces the current document/tree state represented by this object; it does not append the loaded XML beneath the current element.

Returns true for success, false for failure.

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LoadXml2
var success = LoadXml2(xmlData, autoTrim);
· return: boolean; true for success, false for failure
· xmlData: string
· autoTrim: boolean

Parses the XML text in xmlData and replaces the current XML tree, like LoadXml. The autoTrim argument additionally controls whether leading and trailing whitespace is removed from each leaf element's text content while loading.

Whitespace significance: Set autoTrim to false when leading or trailing text whitespace is significant to the application.

Returns true for success, false for failure.

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LoadXmlFile
var success = LoadXmlFile(fileName);
· return: boolean; true for success, false for failure
· fileName: string

Reads and parses an XML document from fileName, replacing the calling object's current XML tree with the loaded document root. Returns true on success.

The file's XML declaration and byte encoding are used as part of normal XML parsing.

Returns true for success, false for failure.

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LoadXmlFile2
var success = LoadXmlFile2(fileName, autoTrim);
· return: boolean; true for success, false for failure
· fileName: string
· autoTrim: boolean

Reads and parses an XML document from fileName, replacing the current XML tree. The autoTrim argument controls whether leading and trailing whitespace is removed from each leaf element's text content.

Whitespace significance: Set autoTrim to false when leading or trailing text whitespace must be preserved exactly.

Returns true for success, false for failure.

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NewChild2
NewChild2(tagPath, content);
· return: undefined
· tagPath: string
· content: string

Creates a new child at tagPath with the specified text content, but does not return a separate Xml object for the new element.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath. Intermediate elements in a multi-part path are created as needed.

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NewChildInt2
NewChildInt2(tagPath, value);
· return: undefined
· tagPath: string
· value: int

Creates a new child at tagPath whose content is the decimal representation of value. No separate child object is returned.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath. Intermediate elements in a multi-part path are created as needed.

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NextInTraversal2
var boolVal = NextInTraversal2(sbState);
· return: boolean
· sbState: CkStringBuilder
Introduced in version 9.5.0.77

Moves the calling Xml object to the next element in a depth-first traversal of the tree and updates sbState with the traversal state.

Pass an empty StringBuilder when beginning a traversal, then reuse the same sbState for each subsequent call.

Why the name ends in 2: This method changes the caller's internal element reference. There is no separate NextInTraversal method that returns another Xml object.

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NextSibling2
var success = NextSibling2();
· return: boolean; true for success, false for failure

Moves the calling Xml object's internal reference to its next sibling. Returns true if one exists; otherwise returns false.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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NumChildrenAt
var intVal = NumChildrenAt(tagPath);
· return: int
· tagPath: string
Introduced in version 9.5.0.64

Returns the number of direct children of the element selected by tagPath. Returns -1 if the path does not identify an existing element.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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NumChildrenHavingTag
var intVal = NumChildrenHavingTag(tag);
· return: int
· tag: string

Returns the number of direct children whose tag exactly equals tag. Descendants below those children are not included.

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PreviousSibling2
var success = PreviousSibling2();
· return: boolean; true for success, false for failure

Moves the calling Xml object's internal reference to its previous sibling. Returns true if one exists; otherwise returns false.

Element-reference behavior: Methods that return an Xml object return another object referencing an element in the same underlying tree. Methods whose names end in 2 instead move the caller's internal reference.

Returns true for success, false for failure.

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PruneAttribute
var intVal = PruneAttribute(attrName);
· return: int
· attrName: string
Introduced in version 9.5.0.77

Recursively traverses the subtree rooted at the calling element and removes every occurrence of the attribute named attrName.

Returns the number of attributes removed.

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PruneTag
var intVal = PruneTag(tag);
· return: int
· tag: string
Introduced in version 9.5.0.77

Recursively traverses the subtree rooted at the calling element and removes every element whose tag equals tag. Each removed element's entire descendant subtree is removed with it.

Returns the number of matching tag occurrences removed.

Subtree pruning: When a matching parent is removed, its descendants disappear as part of that subtree; this method is intended for structural cleanup rather than text-only removal.

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RemoveAllAttributes
var success = RemoveAllAttributes();
· return: boolean; true for success, false for failure

Removes every attribute from the calling element. Returns true on success.

Returns true for success, false for failure.

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RemoveAllChildren
RemoveAllChildren();
· return: undefined

Removes all direct child elements and their subtrees from the calling element. The calling element's own tag, attributes, and text content are retained.

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RemoveAttribute
var success = RemoveAttribute(name);
· return: boolean; true for success, false for failure
· name: string

Removes the attribute named name from the calling element. Returns true when the operation succeeds.

Returns true for success, false for failure.

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RemoveChild
RemoveChild(tagPath);
· return: undefined
· tagPath: string

Removes all child elements selected by tagPath beneath the calling element.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.
All matches: This method removes matching children rather than returning a removed subtree. Use an ExtractChild... method when the removed element must be retained.

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RemoveChildByIndex
RemoveChildByIndex(index);
· return: undefined
· index: int

Removes the direct child at zero-based index, including that child's entire subtree.

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RemoveChildWithContent
RemoveChildWithContent(content);
· return: undefined
· content: string

Removes all direct children whose text content exactly equals content, including each removed child's subtree.

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RemoveFromTree
RemoveFromTree();
· return: undefined

Detaches the calling element and its entire subtree from its parent. The detached element becomes the root of its own independent XML tree.

Object remains usable: This method removes the subtree from its former document but keeps the calling Xml object referencing the detached subtree.

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RemoveStyleSheet
var intVal = RemoveStyleSheet(attrName, attrValue);
· return: int
· attrName: string
· attrValue: string
Introduced in version 9.5.0.77

Removes XML stylesheet processing instructions whose attribute named attrName has the value attrValue.

Returns the number of matching stylesheet declarations removed, or -1 if an error occurs.

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SaveBinaryContent
var success = SaveBinaryContent(filename, unzipFlag, decryptFlag, password);
· return: boolean; true for success, false for failure
· filename: string
· unzipFlag: boolean
· decryptFlag: boolean
· password: string

Decodes the binary content stored in this element and writes the resulting bytes to filename. Set unzipFlag and decryptFlag to reverse the transformations originally applied, and supply the corresponding password when decrypting.

Returns true on success and false on failure.

Returns true for success, false for failure.

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SaveXml
var success = SaveXml(fileName);
· return: boolean; true for success, false for failure
· fileName: string

Serializes the XML tree or subtree rooted at the current element and writes it to fileName.

Document/output properties such as Encoding, EmitBom, EmitXmlDecl, and EmitCompact affect the generated output as applicable.

Returns true on success and false on failure.

Returns true for success, false for failure.

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Scrub
Scrub(directives);
· return: undefined
· directives: string
Introduced in version 9.5.0.77

Recursively normalizes the XML subtree rooted at the calling element according to the comma-separated keywords in directives.

Supported directives are:

  • AttrTrimEnds — remove leading and trailing whitespace from attribute values.
  • AttrTrimInside — replace tabs, CR, and LF with spaces and collapse repeated spaces inside attribute values.
  • ContentTrimEnds — remove leading and trailing whitespace from element content.
  • ContentTrimInside — normalize internal tabs/line breaks/spaces in element content.
  • LowercaseAttrs — convert attribute names to lowercase.
  • LowercaseTags — convert tag names to lowercase.
  • RemoveCtrl — remove US-ASCII control characters with values 0-31 except TAB, CR, and LF.
Destructive normalization: Scrubbing modifies the tree. Use these options only when the corresponding whitespace, letter case, or control characters are not semantically significant to the application.

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SetBinaryContentBd
var success = SetBinaryContentBd(data, zipFlag, encryptFlag, password);
· return: boolean; true for success, false for failure
· data: CkBinData
· zipFlag: boolean
· encryptFlag: boolean
· password: string
Introduced in version 11.0.0

Stores the bytes in data as binary content on this element, with optional ZIP compression and optional password-based AES encryption. The stored binary representation is emitted as Base64 text when XML is serialized.

If zipFlag is true, the bytes are compressed first. If encryptFlag is true, the data is encrypted using Chilkat's 128-bit Rijndael/AES format and password.

Returns true on success and false on failure.

Round trip: Use the corresponding binary-content retrieval methods with matching decompression/decryption options to recover the original bytes.

Returns true for success, false for failure.

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SetBinaryContentFromFile
var success = SetBinaryContentFromFile(filename, zipFlag, encryptFlag, password);
· return: boolean; true for success, false for failure
· filename: string
· zipFlag: boolean
· encryptFlag: boolean
· password: string

Reads the bytes from filename and stores them as this element's binary content, with optional ZIP compression and optional password-based encryption. The resulting stored data is represented as Base64 when XML text is generated.

Returns true on success and false on failure.

Returns true for success, false for failure.

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SortByAttribute
SortByAttribute(attrName, ascending);
· return: undefined
· attrName: string
· ascending: boolean

Sorts the calling element's direct children by the string value of attribute attrName. Set ascending to true for ascending order or false for descending order.

SortCaseInsensitive controls case sensitivity for string sorting.

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SortByAttributeInt
SortByAttributeInt(attrName, ascending);
· return: undefined
· attrName: string
· ascending: boolean

Sorts the calling element's direct children numerically by the value of attribute attrName, interpreting each sort value as an integer rather than comparing the text lexicographically.

Set ascending to true for ascending order or false for descending order.

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SortByContent
SortByContent(ascending);
· return: undefined
· ascending: boolean

Sorts the calling element's direct children by their text content. Set ascending to true for ascending order or false for descending order.

SortCaseInsensitive controls case sensitivity for the string comparison.

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SortByTag
SortByTag(ascending);
· return: undefined
· ascending: boolean

Sorts the calling element's direct children by tag name. Set ascending to true for ascending order or false for descending order.

SortCaseInsensitive controls case sensitivity for the tag-name comparison.

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SortRecordsByAttribute
SortRecordsByAttribute(sortTag, attrName, ascending);
· return: undefined
· sortTag: string
· attrName: string
· ascending: boolean

Treats each direct child as a record and sorts those records by the value of attribute attrName on the record's child identified by sortTag.

Set ascending to true for ascending order or false for descending order. String comparisons honor SortCaseInsensitive.

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SortRecordsByContent
SortRecordsByContent(sortTag, ascending);
· return: undefined
· sortTag: string
· ascending: boolean

Treats each direct child as a record and sorts those records by the text content of the record's child named sortTag.

Set ascending to true for ascending order or false for descending order. String comparisons honor SortCaseInsensitive.

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SortRecordsByContentInt
SortRecordsByContentInt(sortTag, ascending);
· return: undefined
· sortTag: string
· ascending: boolean

Treats each direct child as a record and sorts those records numerically by the integer content of the record's child named sortTag.

Numeric comparison is used instead of lexicographic string comparison. Set ascending to true for ascending order or false for descending order.

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SwapNode
var success = SwapNode(node);
· return: boolean; true for success, false for failure
· node: CkXml

Swaps the calling element's tag, text content, and attributes with those of node.

Returns true on success and false on failure.

Children are not swapped: Use SwapTree when child subtrees should also be exchanged.

Returns true for success, false for failure.

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SwapTree
var success = SwapTree(tree);
· return: boolean; true for success, false for failure
· tree: CkXml

Swaps the calling element's complete tree state with tree, including tag, text content, attributes, and children.

Returns true on success and false on failure.

Returns true for success, false for failure.

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TagContent
var strVal = TagContent(tagName);
· return: string
· tagName: string

Searches the subtree rooted at the calling element for the first element whose tag equals tagName and returns that element's text content.

Recursive search: Unlike direct-child getters, this search is not limited to the caller's immediate children.

Returns null on failure

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TagEquals
var boolVal = TagEquals(tag);
· return: boolean
· tag: string

Returns true if the calling element's complete tag name, including any namespace prefix, exactly equals tag; otherwise returns false.

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TagIndex
var intVal = TagIndex(tagPath);
· return: int
· tagPath: string
Introduced in version 9.5.0.76

Returns the zero-based child index of the element selected by tagPath. Returns -1 when no matching element is found at that path.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.
Index meaning: The returned index is the element's position among its parent's direct children, which is the index accepted by methods such as GetChild, RemoveChildByIndex, and the insertion methods.

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TagNsEquals
var boolVal = TagNsEquals(ns);
· return: boolean
· ns: string
Introduced in version 9.5.0.77

Returns true if this element's namespace-prefix portion exactly equals ns; otherwise returns false.

For example, the namespace prefix of soapenv:Body is soapenv.

Prefix comparison: This compares the lexical prefix, not the namespace URI bound to that prefix.

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TagUnpEquals
var boolVal = TagUnpEquals(unprefixedTag);
· return: boolean
· unprefixedTag: string
Introduced in version 9.5.0.77

Returns true if this element's unprefixed tag exactly equals unprefixedTag; otherwise returns false.

For example, the unprefixed tag of soapenv:Body is Body.

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UnzipContent
var success = UnzipContent();
· return: boolean; true for success, false for failure

Reverses ZipContent: decodes and decompresses the calling element's compressed content and replaces the stored Base64-compressed representation with the original content.

Returns true on success and false on failure.

Returns true for success, false for failure.

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UnzipTree
var success = UnzipTree();
· return: boolean; true for success, false for failure

Reverses ZipTree: decompresses the stored representation and reconstructs the calling element's previously compressed subtree.

The element's tag and attributes, which are not replaced by ZipTree, remain associated with the restored tree.

Returns true on success and false on failure.

Returns true for success, false for failure.

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UpdateAt
var boolVal = UpdateAt(tagPath, autoCreate, value);
· return: boolean
· tagPath: string
· autoCreate: boolean
· value: string
Introduced in version 9.5.0.64

Sets the text content of the element selected by tagPath to value.

If autoCreate is true, missing elements along the path are created as needed. If it is false, the update requires the target path to already exist.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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UpdateAttrAt
var boolVal = UpdateAttrAt(tagPath, autoCreate, attrName, attrValue);
· return: boolean
· tagPath: string
· autoCreate: boolean
· attrName: string
· attrValue: string
Introduced in version 9.5.0.64

Sets attribute attrName to attrValue on the element selected by tagPath. The attribute is added when it does not already exist.

If autoCreate is true, missing elements along the path are created as needed. If it is false, the target path must already exist.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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UpdateAttribute
var success = UpdateAttribute(attrName, attrValue);
· return: boolean; true for success, false for failure
· attrName: string
· attrValue: string

Sets attribute attrName to attrValue. If the attribute already exists its value is replaced; otherwise the attribute is added.

Returns true on success and false on failure.

Returns true for success, false for failure.

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UpdateAttributeInt
var success = UpdateAttributeInt(attrName, value);
· return: boolean; true for success, false for failure
· attrName: string
· value: int

Sets attribute attrName to the decimal representation of integer value. Use UpdateAttribute for string values.

Returns true on success and false on failure.

Returns true for success, false for failure.

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UpdateChildContent
UpdateChildContent(tagPath, value);
· return: undefined
· tagPath: string
· value: string

Sets the text content of the child selected by tagPath to value. Missing elements along the path are automatically created as needed.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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UpdateChildContentInt
UpdateChildContentInt(tagPath, value);
· return: undefined
· tagPath: string
· value: int

Sets the content of the child selected by tagPath to the decimal representation of integer value.

Tag paths: A tag path is Chilkat's |-separated child-navigation syntax, for example tagA|tagB|tagC. It is not XPath.

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ZipContent
var success = ZipContent();
· return: boolean; true for success, false for failure

ZIP-compresses this element's text content and replaces the original content with Base64-encoded compressed data.

Returns true on success and false on failure.

Reversible transformation: Call UnzipContent to restore the original content.

Returns true for success, false for failure.

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ZipTree
var success = ZipTree();
· return: boolean; true for success, false for failure

ZIP-compresses the calling element's content together with its entire child subtree and replaces that structure with Base64-encoded compressed data.

The calling element's tag and attributes are not changed. Call UnzipTree to reconstruct the compressed subtree.

Returns true on success and false on failure.

Returns true for success, false for failure.

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