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//全选 procedure TFrameCustSelector.ToolButton1Click(Sender: TObject); var OldCurrent: TBookmark; begin OldCurrent := DBGrid1.DataSource.DataSet.Bookmark; DBGrid1.DataSource.DataSet.DisableControls; DBGrid1.DataSource.DataSet.First ; while not DBGrid1.DataSource.DataSet.Eof do begin DBGrid1.SelectedRows.CurrentRowSelected := true; DBGrid1.DataSource.DataSet.Next; end; DBGrid1.DataSource.DataSet.GotoBookmark(OldCurrent); DBGrid1.DataSource.DataSet.EnableControls; end; //全清 procedure TFrameCustSelector.ToolButton2Click(Sender: TObject); var OldCurrent: TBookmark; begin OldCurrent := DBGrid1.DataSource.DataSet.Bookmark; DBGrid1.DataSource.DataSet.DisableControls; DBGrid1.DataSource.DataSet.First ; while not DBGrid1.DataSource.DataSet.Eof do begin DBGrid1.SelectedRows.CurrentRowSelected := False; DBGrid1.DataSource.DataSet.Next; end; DBGrid1.DataSource.DataSet.GotoBookmark(OldCurrent); DBGrid1.DataSource.DataSet.EnableControls; end; //反选 procedure TFrameCustSelector.ToolButton3Click(Sender: TObject); var OldCurrent: TBookmark; begin OldCurrent := DBGrid1.DataSource.DataSet.Bookmark; DBGrid1.DataSource.DataSet.DisableControls; DBGrid1.DataSource.DataSet.First ; while not DBGrid1.DataSource.DataSet.Eof do begin DBGrid1.SelectedRows.CurrentRowSelected := not DBGrid1.SelectedRows.CurrentRowSelected; DBGrid1.DataSource.DataSet.Next; end; DBGrid1.DataSource.DataSet.GotoBookmark(OldCurrent); DBGrid1.DataSource.DataSet.EnableControls; end; |