Delphi控件源码

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Delphi

ClientIndexesU1.pas：源码内容

							unit ClientIndexesU1;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Grids, DBGrids, DB, ADODB;
type
  TForm1 = class(TForm)
    ADODataSet1: TADODataSet;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    procedure DBGrid1TitleClick(Column: TColumn);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.DBGrid1TitleClick(Column: TColumn);
begin
  if ADODataSet1.IndexFieldNames = Column.Field.FieldName then
    ADODataSet1.IndexFieldNames:=Column.Field.FieldName + ' DESC'
  else
    ADODataSet1.IndexFieldNames:=Column.Field.FieldName
end;
end.

						