SFtpDir Dart Reference Documentation
CkSFtpDir
Current Version: 11.6.1
Chilkat.SFtpDir
Holds the files and subdirectories returned from an SFTP directory-read
operation.
Use
Read
Use
Use
Sort entries by filename, timestamps, or size, and load directory
listings returned from completed async tasks.
Inspect, sort, and iterate an SFTP directory listing.
Chilkat.SFtpDir represents a directory listing returned by an
SFTP operation. It provides the original path used to fetch the listing, the
number of files and subdirectories found, methods for retrieving filenames
or full SFtpFile entry details by index, sorting support, and a
way to load a completed asynchronous directory-listing result.
Directory listing object
Original path tracking
OriginalPath to see the remote path that was requested
when the directory listing was created.
Entry count
NumFilesAndDirs to determine how many directory
entries are available for iteration.
Filename access
GetFilename to retrieve the name of an entry by
zero-based index.
Full entry details
FileAt to populate an SFtpFile object with
metadata for a selected file or subdirectory.
Sorting and async results
Chilkat.SFtp object to open or read a remote directory,
then use the returned SFtpDir object to inspect
NumFilesAndDirs, optionally call Sort, and loop
from index 0 through the final entry. Use
GetFilename when only names are needed, or FileAt
when the application needs the full SFtpFile metadata for each
entry.
Object Creation
// pubspec.yaml:
// dependencies:
// chilkat: ^11.6.1
import 'package:chilkat/chilkat.dart';
// Once per process, before any other Chilkat call:
Chilkat.unlockBundle('Anything for 30-day trial'); // shorthand for CkGlobal().unlockBundle(..)
final sFtpDir = CkSFtpDir();
// ... the native object is released when `sFtpDir` is garbage collected, or now with sFtpDir.dispose().Creates the underlying native Chilkat object. Use a CkSFtpDir only from the isolate that created it: Chilkat objects cannot be sent between isolates. Every call is synchronous; in a Flutter app, run long operations (network, large files) inside Isolate.run, creating the Chilkat objects inside the isolate.
Releases the native object immediately instead of waiting for garbage collection (useful for a large CkBinData or an open socket). Calling it more than once is harmless; any other use of the object afterwards throws a StateError. isDisposed tells whether it has been called.
Errors
A method that can fail throws a ChilkatException: a method whose only outcome is success or failure returns void and throws on failure; a method producing a String or an object returns it and throws where Chilkat would have returned null. The exception carries the object's LastErrorText at the time of the failure (lastErrorText), the class and method names (className, methodName) and a one-line message. Properties never throw, and methods that answer a question (has..., is..., ...) return a plain bool.
try {
sFtpDir.someMethod(...);
} on ChilkatException catch (e) {
print(e); // CkSFtpDir.someMethod failed: <reason>
print(e.lastErrorText); // the full Chilkat log of the failed call
}Properties
DebugLogFilePath
String get debugLogFilePath
set debugLogFilePath(String value)
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.
LastErrorHtml
String get lastErrorHtml
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.
topLastErrorText
String get lastErrorText
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.
LastErrorXml
String get lastErrorXml
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.
topLastMethodSuccess
bool get lastMethodSuccess
set lastMethodSuccess(bool value)
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.
NumFilesAndDirs
int get numFilesAndDirs
Returns the number of entries in this directory listing.
The count includes every item returned by the server, such as regular files, directories, symbolic links, and special entries. Valid zero-based indexes range from 0 through NumFilesAndDirs - 1.
OriginalPath
String get originalPath
Returns the original remote path used to create this directory listing.
This is the same path string that was supplied to the SFTP directory-open operation. It identifies the requested directory and is retained with the listing for later reference.
topVerboseLogging
bool get verboseLogging
set verboseLogging(bool value)
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
String get version
Methods
FileAt
Copies the metadata for the directory entry at the zero-based index into fileObj.
The first entry is at index 0. Use NumFilesAndDirs to determine the number of available entries.
The populated SFtpFile object provides the entry name, type, size, timestamps, ownership, permissions, and any additional attributes supplied by the SFTP server.
GetFilename when only the entry name is needed.
Returns normally on success; throws a ChilkatException on failure.
GetFilename
Returns the filename of the directory entry at the zero-based index.
The first entry is at index 0. Use NumFilesAndDirs to determine the number of available entries.
FileAt when the application needs the full SFtpFile metadata rather than only the entry name.
Throws a ChilkatException on failure (where the description says null is returned, the Dart method throws instead).
Sort
Reorders the files and subdirectories in this listing according to field.
Set ascending to true for ascending order or false for descending order. The new order is used by index-based methods such as GetFilename and FileAt.
| field | Sort key |
|---|---|
filename |
Filename using the normal case-sensitive comparison. |
filenameNoCase |
Filename using a case-insensitive comparison. |
lastModifiedTime |
Last-modified date and time. |
lastAccessTime |
Last-access date and time. |
lastCreateTime |
Creation date and time. |
size |
Entry size in bytes. |