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How to use " TdrawGrid " for data.......in Delphi

Posted on 2011-03-19
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Last Modified: 2013-11-23
How to use " TdrawGrid " for data.
Like strings . In Delphi
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Question by:dabbiX
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12 Comments
 
LVL 32

Expert Comment

by:ewangoya
ID: 35171561
Use draw cells event
Tform1.drawgrid1drawcell(sender: tobjet; acol, arow: integer; rest:trect; state: tdrawstate);
begin
  DrawGrid1.Canvas.TextOut(Rect.Left, Rest.Top, 'you strings);
end;
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LVL 32

Expert Comment

by:ewangoya
ID: 35171573
Sorry for the typos. Its
Rect: TRect
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LVL 32

Accepted Solution

by:
ewangoya earned 250 total points
ID: 35171605
Much cleaner

Procedure TForm1.DrawGrid1DrawCell(Sender: TObject; ACol, ARow : Integer: Rect: TRect; State: TDrawState);
Begin
  DrawGrid1.Canvas.TextOut(Rect.Left, Rect.Top, 'your string ');
End;
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Author Comment

by:dabbiX
ID: 35171677
ok Tanks

I got 5 tims in the left side.
but how can I put it  in cell .
like row 3 and colum 4. ' my text'
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LVL 24

Assisted Solution

by:jimyX
jimyX earned 250 total points
ID: 35171701
Test the ARow and ACol:
procedure TForm1.DrawGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
begin
  if (ARow = 3) and (ACol = 4) then
    begin
      DrawGrid1.Canvas.FillRect(Rect);
      DrawGrid1.Canvas.TextOut(Rect.Left + 2, Rect.Top + 2, ' my text');
    end;
end;

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Author Comment

by:dabbiX
ID: 35171941
ok
  DrawGrid1.Col := 3;
  DrawGrid1.Row := 0;
  lx := DrawGrid1.row ;
  dy := DrawGrid1.Col ;
  DrawGrid1.Canvas.TextOut(lx,dy,'colum name');
This set name in colum 0......

How can I put name in colum 1 to 4.........
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LVL 24

Expert Comment

by:jimyX
ID: 35171998
Is this what you mean:
var
  col,row:integer;
begin
  for col := 0 to DrawGrid1.ColCount-1 do
    for row:= 0 to DrawGrid1.RowCount-1 do
      DrawGrid1.Canvas.TextOut(DrawGrid1.CellRect(col,row).Left+3,DrawGrid1.CellRect(col,row).Top+3,'colum name');
//...

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Author Comment

by:dabbiX
ID: 35172742
ok
ups
I got 'Colum name' over all.

How can I have separate name in Colum heat.

like... Colum1 = name
         Colum 2 = Home
         Colum 3 = Country
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LVL 24

Assisted Solution

by:jimyX
jimyX earned 250 total points
ID: 35172818
Then it becomes as follows:
DrawGrid1.Canvas.TextOut(DrawGrid1.CellRect(0,0).Left+3,DrawGrid1.CellRect(0,0).Top+3, 'Name');
DrawGrid1.Canvas.TextOut(DrawGrid1.CellRect(1,0).Left+3,DrawGrid1.CellRect(1,0).Top+3, 'Home');
DrawGrid1.Canvas.TextOut(DrawGrid1.CellRect(2,0).Left+3,DrawGrid1.CellRect(2,0).Top+3, 'Country');

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LVL 32

Assisted Solution

by:ewangoya
ewangoya earned 250 total points
ID: 35172854

You need to be reading the data from somewhere, Declare an array to hold the column data eg
const
  CHeader: array[0..2] of string = ('Name', 'Home', 'Country');


However for what you are trying to do, you are better off using a TClientDataset and TDBGrid and you dont have to worry about drawing data manually
const 
  CHeader: array[0..2] of string = ('Name', 'Home', 'Country');

procedure TForm1.DrawGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
begin
  if ARow = 0 then
  begin
    DrawGrid1.Canvas.TextOut(Rect.Left + 2, Rect.Top + 2, CHeader[ACol]);
  end;
end;

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LVL 100

Expert Comment

by:mlmcc
ID: 35452392
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
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