OnPaint event during a callback when the form is below?
- by Martín Marconcini
Imagine the following scenario:
this.SetStyle(ControlStyles.UserPaint, true); //this doesn’t change anything
…
void OpenSomeForm()
{
SomeForm sf = new SomeForm();
sf.SomeEvent += new … (SomeEventOcurred);
sf.ShowDialog();
}
private void SomeEventOcurred(…)
{
OnePanelInThisForm.Invalidate();
}
private void OnePanelInThisForm_Paint(object sender, PaintEventArgs e)
{
DoSomeDrawing(e.Graphics);
}
Now, OnePanelInThisForm draws correctly when the form loads. But if SomeEventOcurred is Fired from “SomeForm”, the paint event is not fired. If I close and reopen the form it correctly repaints.
If I add a button to the form that executes: OnePanelInThisForm.Invalidate(); the panel is correctly repaint.
What am I missing?
