各位前輩你好 我有一個 DbGrid1 的問題 請問當我在 DbGrid1 的第二筆資料的第二個 field 的作dblclick時 如何得到 DbGrid1 的第三筆資料的第二個 field 的x,y座標 因為我想把 DbGrid2 show在這個x,y的位置給user作資料選擇 謝謝

參考 Borland FAQ List 這篇: Question: Is there a way to figure out the coordinates (specifically, left and top) of the currently selected Cell in a DBGrid Answer: If you have globally declared variables 'CurrentLeft' and 'CurrentTop', you can keep their values current via the OnDrawDataCell event:

var
  CurrentLeft, CurrentTop, CurrentHeight: Integer;    procedure TMainForm.DBGrid1DrawDataCell(Sender: TObject; 
  const Rect: TRect; Field: TField; State: TGridDrawState);
begin
  if gdFocused in State then begin
    CurrentLeft := Rect.Left;
    CurrentTop := Rect.Top;
    CurrentHeight := Rect.Bottom - Rect.Top;
  end;
end;

如此記錄 Focus 所在 Cell 的 Rect 值, 那第二個 Field 的 x 座標 = CurrentLeft, y 座標 = CurrentTop CurrentHeight

謝謝前輩指導ok了