whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1541)

Database (90)
Files (137)
Forms (107)
Graphic (114)
IDE (21)
Indy (5)
Internet / LAN (130)
IntraWeb (0)
Math (76)
Misc (126)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (266)
VCL (242)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

26 Visitors Online


 
...show a Graphic in DBGrid Cell?
Autor: eko schuscanto
Homepage: www.schuscanto.com
[ Print tip ]  

Tip Rating (14):  
     


// in this sample;

// 1. drop two image component to main form
// 2. fill the images picture with specific country flag (Bitmap Picture)

// The code :

procedure TForm1.DBGrid1DrawColumnCell(Sender: TObject; const Rect: TRect;
  DataCol: Integer; Column: TColumn; State: TGridDrawState);
var
  
bmpImage: tBitmap;
  intX, intY: Integer;
begin
  if 
DataSource1.DataSet.RecNo > 0 then
  begin
    if 
column.FieldName = 'COUNTRY' then
      with 
DBGrid1.Canvas do
      begin
        
fillRect(rect);
        bmpImage := tBitmap.Create;
        try
          if 
DBGrid1.DataSource.DataSet.FieldByName('COUNTRY').AsInteger = 0 then
            
bmpImage.Assign(image0.Picture.Bitmap);

          if DBGrid1.DataSource.DataSet.FieldByName('COUNTRY').AsInteger = 1 then
            
bmpImage.Assign(image1.Picture.Bitmap);

          intX := ((rect.Right - rect.Left) div 2) -
            (bmpImage.Width div 2);

          intY := ((rect.Bottom - rect.Top) div 2) -
            (bmpImage.Height div 2);
          draw(rect.Left + intX, rect.Top + intY, bmpImage);
        finally
          
bmpimage.Free;
        end;
      end;
  end;
end;

 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners