Painting on a GridControl

[Pierre-Luc]

Hi there!

I''ve been having some problems with painting on my grid... what I want to do is paint some strings on it, but I want to do it on my own. Not using Events to do it.

I would like to know if there''s a way to get a graphics tool to paint on a GridControl, and use it in a handmade method or function.

Thank you!
Pierre-Luc

[Pierre-Luc]

Well, in the end I found out I can''t do what I want without an event..... but still when I use this :

Private Sub PlanifGrid_DrawCell(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Grid.GridDrawCellEventArgs) Handles PlanifGrid.DrawCell
Dim Name As String

e.Graphics.DrawString(Name, Me.drawFont, Me.drawBrush, 40, 40)
End If
End Sub

it paints at the correct place, but if I click or double-click on the cell where it was drawn,.... it disapear. is there some kind of onfocus event that redraws an empty cell? or something I could do to fix this

thanks!

[Administrator]

Hi Pierre,

You can avoid this problem, by setting the e.Cancel property to true in the draw_cell event handler. Here is the code snippet

Private Sub PlanifGrid_DrawCell(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Grid.GridDrawCellEventArgs) Handles PlanifGrid.DrawCell
Dim Name As String
e.Graphics.DrawString(Name, Me.drawFont, Me.drawBrush, 40, 40)
e.Cancel = True;
End If
End Sub

Regards,
Madhan.

[Pierre-Luc]

It worked... but now the grid headers are not drawing... I attached an example of the graphic output, the THIS is while using e.cancel = true
and the THAT is while not using it (and having the problem I had at first)

I hope it can be fixed

Pierre-Luc

[Pierre-Luc]

heh... forgot to attache the picture

Example3.zip

[Administrator]

Hi Pierre, The attached sample is working fine, uses the same code. Can you post a sample showing the mentioned problem. And also kindly mention the grid version that you are using. Here is a sample project. Best regards, Madhan.

[Pierre-Luc]

You are just awesome !
all that was needed is an

If e.RowIndex > 1 And e.ColIndex > 1 Then
[my code]
e.cancel = true
end if

to prevent canceling the drawcell on the headers

Thanks a lot, your example made me realize that

best regards and thanks,
Pierre-Luc