Question

I have this code:

    private void HandleGUI()
    {
        if (_currentForm == null)
        {
            navigationSideBar1.Visible = false;
            pnlToolbar.Visible = false;

            return;
        }

        if (_currentForm.ShowNavigationBar)
        {
            HandleNavigationButton(_currentForm);
        }

        btnSave.Visible = _currentForm.ShowSaveButton;
        btnClose.Visible = _currentForm.ShowCloseButton;
        btnSave.Paint += new PaintEventHandler(btnSave_Paint);
        navigationSideBar1.Visible = _currentForm.ShowNavigationBar;
        pnlToolbar.Visible = _currentForm.ShowToolBar;

        btnSave.Refresh();
        btnSave.Invalidate();
    }

I am registered on the onpaint event of the save button (btnSave), but this event is not fired, even when I call Refresh or Invalidate. How is this possible?

EDIT:
This is how the saave button class looks like:

public class SaveButton : ButtonX
{
    public SaveButton()
    {
        this.Image = Properties.Resources.Save;
        this.Text = "Opslaan";
        this.Size = new Size(108, 39);

    }
}

Answer 1

Try adding a regular DevComponent button (i.e. not a subclass of it) to a test form and see if it ever fires its Paint event. They may have exposed a Paint event (so that their interface matches that of a regular button) but not actually implemented it.