SFtpDir Delphi ActiveX Reference Documentation

TChilkatSFtpDir

Current Version: 11.5.0

Chilkat.SFtpDir

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

Holds the files and subdirectories returned from an SFTP directory-read operation.

Original path tracking

Use OriginalPath to see the remote path that was requested when the directory listing was created.

Entry count

Read NumFilesAndDirs to determine how many directory entries are available for iteration.

Filename access

Use GetFilename to retrieve the name of an entry by zero-based index.

Full entry details

Use FileAt to populate an SFtpFile object with metadata for a selected file or subdirectory.

Sorting and async results

Sort entries by filename, timestamps, or size, and load directory listings returned from completed async tasks.

Common pattern: Use a 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

var
obj: TChilkatSFtpDir;
...
begin
obj := TChilkatSFtpDir.Create(Self);
...
// When finished, free the object instance.
obj.Free();

Properties

DebugLogFilePath
property DebugLogFilePath: WideString

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.

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LastBinaryResult
property LastBinaryResult: OleVariant readonly

This property is mainly used in SQL Server stored procedures to retrieve binary data from the last method call that returned binary data. It is only accessible if Chilkat.Global.KeepBinaryResult is set to 1. This feature allows for the retrieval of large varbinary results in an SQL Server environment, which has restrictions on returning large data via method calls, though temp tables can handle binary properties.

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LastErrorHtml
property LastErrorHtml: WideString readonly

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
property LastErrorText: WideString readonly

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
property LastErrorXml: WideString readonly

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
property LastMethodSuccess: Integer

Indicates the success or failure of the most recent method call: 1 means success, 0 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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LastStringResult
property LastStringResult: WideString readonly

In SQL Server stored procedures, this property holds the string return value of the most recent method call that returns a string. It is accessible only when Chilkat.Global.KeepStringResult is set to TRUE. SQL Server has limitations on string lengths returned from methods and properties, but temp tables can be used to access large strings.

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LastStringResultLen
property LastStringResultLen: Integer readonly

The length, in characters, of the string contained in the LastStringResult property.

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NumFilesAndDirs
property NumFilesAndDirs: Integer readonly

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.

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OriginalPath
property OriginalPath: WideString readonly

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.

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VerboseLogging
property VerboseLogging: Integer

If set to 1, then the contents of LastErrorText (or LastErrorXml, or LastErrorHtml) may contain more verbose information. The default value is 0. Verbose logging should only be used for debugging. The potentially large quantity of logged information may adversely affect peformance.

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Version
property Version: WideString readonly

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

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Methods

FileAt
function FileAt(index: Integer; fileObj: IChilkatSFtpFile): Integer;
Introduced in version 11.0.0

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.

Use GetFilename when only the entry name is needed.

Returns 1 for success, 0 for failure.

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GetFilename
function GetFilename(index: Integer): WideString;

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.

Use FileAt when the application needs the full SFtpFile metadata rather than only the entry name.

Returns a zero-length WideString on failure

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LoadTaskResult
function LoadTaskResult(task: IChilkatTask): Integer;
Introduced in version 9.5.0.52

Loads this SFtpDir object from the result of a completed asynchronous Task.

The task must represent an asynchronous SFTP operation whose result is a directory listing. Call this method after the task has finished to transfer the listing data into the current object.

Returns 1 for success, 0 for failure.

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Sort
procedure Sort(field: WideString; ascending: Integer);
Introduced in version 9.5.0.79

Reorders the files and subdirectories in this listing according to field.

Set ascending to 1 for ascending order or 0 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.
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Deprecated

GetFileObject
function GetFileObject(index: Integer): IChilkatSFtpFile;
This method is deprecated and replaced by FileAt

Deprecated: Use FileAt instead.

Returns an SFtpFile object containing the metadata for the directory entry at the zero-based index.

The first entry is at index 0. Use NumFilesAndDirs to determine the number of available entries.

Returns nil on failure

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