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StringGrid selection

Posted on 1998-08-11
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Last Modified: 2008-02-01
I'm using a StringGrid to display some strings. I don't want the user to alter the values. However I see one cell with the color of the selection (?). My question is. How can I make all the cells look the same (clWhite). When I move focus to the StringGrid the selected colored cell changes to a dotted square with the same color as all the other cells. Hope I don't have to use tricks like OnDrawCell.
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Question by:detempel
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ZifNab earned 80 total points
ID: 1361932
Hi detempel,

If you don't want to use OnDrawCell event, then I think we've got a problem?
 Because if focus is moved away from grid, cell will be coloured.

I advise you to look at these two freeware grids, which are far better then the one of Inprise itself :

SuperGrid and/or Hypergrid.

http://www.pablop.demon.co.uk/ with this you can easely change (with visible properties) the layout of the grid, selected cell, ...

Regards, Zif.
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Author Comment

by:detempel
ID: 1361933
Hello Zif,

I don't want to use external components for reasons of maintenance. So I guess I'll have to use the OnDrawCell-event. Can you or someone else give me an example of how to write such an event. I've tried something myself but I'm not yet satisfied with the result and not sure of all the possibilities.

Regards,
The Temple.
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LVL 8

Expert Comment

by:ZifNab
ID: 1361934
Hi detempel, here is the code for ondraw-event

procedure TForm1.StringGrid1DrawCell(Sender: TObject; Col, Row: Integer;
  Rect: TRect; State: TGridDrawState);
const
  LM = 3; {each indiviual cell's left margin}
  TM = 2; {each indiviual cell's top margin}
begin
  if gdFixed in State then {draw fixed columns , fixed}
     (sender as TStringGrid).Canvas.Brush.Color :=
       (sender as TStringGrid).FixedColor;
  if (gdSelected in State) then {draw selected cell , normal}
    begin
      (sender as TStringGrid).Canvas.Brush.Color :=
          (sender as TStringGrid).Color;
      (sender as TStringGrid).Canvas.Font.Color :=
          (sender as TStringGrid).Font.Color;
    end;
  {finally, do the actual cell drawing}
  (sender as TStringGrid).Canvas.TextRect(Rect, Rect.Left + LM, Rect.Top + TM, (sender as TStringGrid).Cells[col,row]);
end;

Regards, Zif.
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