Wanted - string grid code that highlights a clicked column

I want to let users click on the top of a column in a string grid and colour the column light green so they can clearly see where they are. I have code that does this but will not show any text in the light green column. I have tried a couple of ways to display text using textout in the CellDraw event handler but the text is still obliterated by the light green rectangle from CellDraw.

Can someone please show me what to change so that the grid will have a coloured column that lets me correctly display the text that is entered.

My code is shown below, the form has a string grid on it with goEditing set to true.

  Form1: TForm1;
  whichColumn : integer;


{$R *.DFM}

procedure TForm1.StringGrid1DrawCell(Sender: TObject; ACol, ARow: Integer;
  Rect: TRect; State: TGridDrawState);
//paint non fixed cells in one column in light green
//the column is chosen in the MouseDown event handler
        if (acol = whichColumn) and (arow <> 0) and (acol <> 0) then
             StringGrid1.canvas.brush.Color := $0080FF80;

procedure TForm1.StringGrid1MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
//respond to click on one of the fixed cells in the top row
//by finding which column was clicked then repainting the grid
    tempX : integer;
    if (y < StringGrid1.RowHeights[0]) and (x > StringGrid1.ColWidths[0]) then
    //in top row, not in column zero
        tempX := x - StringGrid1.ColWidths[0];
        whichColumn := StringGrid1.LeftCol - 1;
        //now reduce tempX by the column widths until it is zero or less
        //which will tell us which column the click happened in
        while tempX > 0 do
            tempX := tempX - StringGrid1.ColWidths[whichColumn];
        //When we repaint the DrawCell event handler will draw
        //the chosen column in light green

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

After these lines:

StringGrid1.canvas.brush.Color := $0080FF80;

why don't you just call TextOut?

             StringGrid1.canvas.TextOut(Rect.Left + 2, Rect.Top + 2, StringGrid1.Cells[ACol, ARow]);


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.