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color in a row of a dbgrid

Posted on 1998-04-18
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Last Modified: 2010-04-06
we are using dbgrid's and we need paint diferent rows with different colors how can I do it ?
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Question by:jaldana
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inter earned 100 total points
ID: 1335011
Hi,
The simples way is to obtain the  RxLib Delphi component package and use their RXDBgrid(The package contains dozens of very useful components). It has several other capabilites over DBGrid and is FREE. You can download it from:

  http://rx.demo.ru/files/index.html or
direcly
 http://rx.demo.ru/files/rxlib240.zip

USE IT, YOU WILL BE SATISFIED

Regards,
Igor
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by:julio011597
ID: 1335012
What about an OwnerDraw'ed DBGrid?
It is not that hard, IMO.
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by:inter
ID: 1335013
Fine,
Thats one way, however, can not simply compete with RxLib(it takes time I mean). Any way julio is right.
Regards,
Inter
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Expert Comment

by:schappel
ID: 1335014
Sure the simplest way of doing something is to use what somebody
else has written, but that dowsn't teach you anything.

I would suggest that you use an OwnerDrawGrid.  All you have to
do is the following:
 Change the DefaultDrawing property of the DBGrid to False

 Add Some code to the OnDrawColumnCell (*Use this one as
 OnDrawDataCell is supposed to obsolete *)
 e.g.
procedure TForm1.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect;
  DataCol: Integer; Column: TColumn; State: TGridDrawState);
begin
  if Table1.FieldByName('ItemsTotal').Value > 10000 then
  begin
    // Change the line to be bold for lines with above ^^
    DBGrid1.Canvas.Font.Style := [fsBold];  
    if Column.FieldName = 'ItemsTotal' then
      // Change the Color to red for the ItemsTotalColumn if
      // the prior condition is met
      DBGrid1.Canvas.Font.color := clRed;
  end;

  // Call the default drawing now as all we have done is changed
  // the color of thins.  If we wanted to draw in different
  // styles like 3D tehn we would have to handle that aswell
  DBGrid1.DefaultDrawColumnCell( Rect, DataCol, Column, State );
end;


hope this helps

Scott
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