EmailBundle VB.NET WinRT Reference Documentation

EmailBundle

Represents a collection of Email objects.

Object Creation

Dim obj As New Chilkat.EmailBundle()

Properties

DebugLogFilePath As String

If set to a file path, causes each Chilkat method or property call to automatically append it's LastErrorText to the specified log file. The information is appended such that if a hang or crash occurs, it is possible to see the context in which the problem occurred, as well as a history of all Chilkat calls up to the point of the problem. The VerboseLogging property can be set to provide more detailed information.

This property is typically used for debugging the rare cases where a Chilkat method call hangs or generates an exception that halts program execution (i.e. crashes). A hang or crash should generally never happen. The typical causes of a hang are:

  1. a timeout related property was set to 0 to explicitly indicate that an infinite timeout is desired,
  2. the hang is actually a hang within an event callback (i.e. it is a hang within the application code), or
  3. there is an internal problem (bug) in the Chilkat code that causes the hang.

LastErrorHtml As String (ReadOnly)

Provides information in HTML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

LastErrorText As String (ReadOnly)

Provides information in plain-text format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

LastErrorXml As String (ReadOnly)

Provides information in XML format about the last method/property called. If a method call returns a value indicating failure, or behaves unexpectedly, examine this property to get more information.

LastMethodSuccess As Boolean

Introduced in version 9.5.0.52

Indicate whether the last method call succeeded or failed. A value of True indicates success, a value of False indicates failure. This property is automatically set for method calls. It is not modified by property accesses. The property is automatically set to indicate success for the following types of method calls:

  • Any method that returns a string.
  • Any method returning a Chilkat object, binary bytes, or a date/time.
  • Any method returning a standard boolean status value where success = True and failure = False.
  • Any method returning an integer where failure is defined by a return value less than zero.

Note: Methods that do not fit the above requirements will always set this property equal to True. For example, a method that returns no value (such as a "void" in C++) will technically always succeed.

MessageCount As Integer (ReadOnly)

The number of emails in this bundle.

VerboseLogging As 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.

Version As String (ReadOnly)

Version of the component/library, such as "9.4.1.42"

Methods

Function AddEmail(ByVal email As Email) As Boolean

Adds an email object to the bundle.

Returns True for success, False for failure.

Function FindByHeader(ByVal headerFieldName As String, ByVal headerFieldValue As String) As Email

Returns the first email having a header field matching the headerFieldName and headerFieldValue exactly (case sensitive). If no matching email is found, returns Nothing.

Function GetEmail(ByVal index As Integer) As Email

Returns the Nth Email in the bundle. The email returned is a copy of the email in the bundle. Updating the email object returned by GetEmail has no effect on the email within the bundle. To update/replace the email in the bundle, your program should call GetEmail to get a copy, make modifications, call RemoveEmailByIndex to remove the email (passing the same index used in the call to GetEmail), and then call AddEmail to insert the new/modified email into the bundle.

IMPORTANT: This method does NOT communicate with any mail server to download the email. It simply returns the Nth email object that exists within it's in-memory collection of email objects.

Function GetUidls() As StringArray

Returns a StringArray object containing UIDLs for all Email objects in the bundle. UIDLs are only valid for emails retrieved from POP3 servers. An email on a POP3 server has a "UIDL", an email on IMAP servers has a "UID". If the email was retrieved from an IMAP server, the UID will be accessible via the "ckx-imap-uid" header field.

Function GetXml() As String

Converts the email bundle to an XML document in memory. Returns the XML document as a string.

Returns Nothing on failure

Function LoadXml(ByVal filename As String) As Boolean

Loads an email bundle from an XML file.

Returns True for success, False for failure.

Function LoadXmlString(ByVal xmlStr As String) As Boolean

Loads an email bundle from an XML string.

Returns True for success, False for failure.

Function RemoveEmail(ByVal email As Email) As Boolean

Removes an email from the bundle. This does not remove the email from the mail server.

Returns True for success, False for failure.

Function RemoveEmailByIndex(ByVal index As Integer) As Boolean

Removes the Nth email in a bundle. (Indexing begins at 0.)

Returns True for success, False for failure.

Function SaveLastError(ByVal path As String) As Boolean

Saves the last-error information (the contents of LastErrorXml) to an XML formatted file.

Returns True for success, False for failure.

Function SaveXml(ByVal filename As String) As Boolean

Converts each email to XML and persists the bundle to an XML file. The email bundle can later be re-instantiated by calling MailMan.LoadXmlFile

Returns True for success, False for failure.

Sub SortByDate(ByVal ascending As Boolean)

Sorts emails in the bundle by date.

Sub SortByRecipient(ByVal ascending As Boolean)

Sorts emails in the bundle by recipient.

Sub SortBySender(ByVal ascending As Boolean)

Sorts emails in the bundle by sender.

Sub SortBySubject(ByVal ascending As Boolean)

Sorts emails in the bundle by subject.