SystemArgumentException

[lgbjr]

Hi All,

I have a VB.NET MDI app that uses some 3rd party controls (CSTSoft) on some
of the MDI child forms. If I remove the control, all works fine. But, with
the control, I get a SystemArgumentException:

System.ArgumentException: Invalid parameter used.
at System.Drawing.Bitmap..ctor(Int32 width, Int32 height, PixelFormat
format)
at System.Drawing.Bitmap..ctor(Int32 width, Int32 height)
at CSTPercent.Percent.b()
at CSTPercent.Percent.OnResize(EventArgs e)
at System.Windows.Forms.Control.OnSizeChanged(EventArgs e)
at System.Windows.Forms.Control.UpdateBounds(Int32 x, Int32 y, Int32
width, Int32 height, Int32 clientWidth, Int32 clientHeight)
at System.Windows.Forms.Control.UpdateBounds()
at System.Windows.Forms.Control.WmMove(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.UserControl.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg,
IntPtr wparam, IntPtr lparam)

I've hunted around on the web and found that exception is actually being
caused by a known bug in the 1.1 framework.

What I'd like to do is catch this exception, but I have no idea where to
catch it. The actual exception occurs when I minimize the MDI child (if I
minimize the MDI parent, there's no exception).

TIA
Lee

 

[lgbjr]

Hi All,

I'm not having any luck trying to catch this exception. since the exception
occurs when the child form is minimized, I've tried adding a Try..Catch
block to the Resize and SizeChanged events, but that's not working.

If I run the executable outside the IDE, I get the unhandled exception and
if I continue, all works. If I run the app from the IDE, when the exception
occurs, it actually points to the MDI parent form class.

Where and how do I put an exception handler for this?

TIA,
Lee