Graphics Re-Paint Problem

dpukbloke7 · January 3rd, 2011, 12:34 PM

I have a Form with a PictureBox component on which I draw a coloured Piechart. My Problem is that I can get the Piechart to re -Paint if the Form is dragged smaller so that part of the PieChart is covered and opened out again and also if the form is covered partly by another form and uncovered again. However if I minimize the form and then maximize it again the PictureBox and the Piechart briefly re-paint and then are immediately obscured by the Form re-painting itself. Can anyone explain what I am doing wrong and how to overcome the problem ?

Apocolypse2005 · January 3rd, 2011, 12:41 PM

Just simple call the refresh property of the picture box!

You can call it in any event of the form events, in fact you can call it any where. So when the you maximise the form look at that form event.

dpukbloke7 · January 5th, 2011, 12:48 PM

Thanks for advice but I cannot seem to find the maximize event details and there is no 'Refresh' property in the Visual Studio 2010 property list so I am no nearer.

Apocolypse2005 · January 6th, 2011, 05:29 PM

Code:

Private Sub Form1_GotFocus(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.GotFocus
        PictureBox1.Refresh()
End Sub

Jobs a good 'un

dpukbloke7 · January 8th, 2011, 11:58 AM

Again thanks for your suggestions which I have tried without any success. I tried everything that I thought might be happening when on one re-opens the form from minimized such as ResizeEnd, MaximizeEnd etc all without success. However I then tried some experiments on a simple Form with first a PictureBox with no success so I then thought I will try changing the PictureBox for a Panel and 'voila' - it worked so I went back to my original program and changed to a Panel for the PictureBox in there and now every thing works fine. The form minimizes and resizes and the graphics re-paint themselves immediately.