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

delphi

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.FalseThe 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.FalseThe 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
C++

delphi

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

cpp

#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: