cxExportTLToCSVStream(TStream,TcxCustomTreeList,Boolean,Boolean,Char,TObject,TEncoding) Method

Exports content of a tree list control to a stream in CSV (comma-separated values) format.

Declaration

procedure cxExportTLToCSVStream(AStream: TStream; ATreeList: TcxCustomTreeList; AExpand: Boolean = True; ASaveAll: Boolean = True; const ASeparator: Char = ','; AHandler: TObject = nil; AEncoding: TEncoding = nil);

Parameters

Name	Type	Description
AStream	TStream	The target stream.
ATreeList	TcxCustomTreeList	The source tree list control.
AExpand	Boolean	Optional. Specifies if all source tree list nodes are expanded: True Default. The procedure exports all rows, including the rows hidden within collapsed tree list nodes. False The procedure exports only visible rows.
ASaveAll	Boolean	Optional. Specifies if the procedure exports all available rows: True Default. The procedure exports all or only visible rows depending on the AExpand parameter value. False The procedure exports only selected rows.
ASeparator	Char	Optional. Specifies the character used to delimit exported values in the resulting CSV stream. The default separator character is a comma.
AHandler	TObject	Optional. Specifies a handler object that should implement the IcxExportBeforeSave and/or IcxExportProgress interfaces to allow you to perform specific actions before the beginning of an export operation and track its progress. Tip Refer to the following topic for detailed information on how to create and use handler objects: How to: Track Data Export Progress
AEncoding	TEncoding	Optional. Specifies the character encoding format of the resulting CSV stream. If nil (in Delphi) or nullptr (in C++Builder) is passed as the AEncoding parameter (default), the procedure uses the TEncoding.Default encoding.

Remarks

Call the cxExportTLToCSVStream procedure to export tree list content to a stream in CSV format. In the resulting stream, every plain text line of values separated by commas corresponds to a data record.

Code Example: Export Tree List Content to a CSV Stream

The following code example exports tree list content to a file in CSV format:

Delphi

uses cxTLExportLink;
// ...
var
  AStream: TMemoryStream;
begin
  AStream := TMemoryStream.Create;
  cxExportTLToCSVStream(AStream, cxDBTreeList);
  AStream.SaveToFile('Departments.csv');
  AStream.Free;
end;

C++

#include "cxTLExportLink.hpp"  
// ...
  TMemoryStream *AStream = nullptr;
  // ...
  AStream = new TMemoryStream();
  cxExportTLToCSVStream(AStream, cxDBTreeList);
  AStream->SaveToFile("Departments.csv");
  delete AStream;

The following image demonstrates the exported content of a memory stream when it is saved to a file: