There's a bug in beta 5 and beta 6 where we can sometimes fail to call the correct derived method. You can work around the bug in many cases w/:
Class MyForm(Form): def __init__(self): self.OnKeyUp = self.OnKeyUp def OnKeyUp(self, e): ... Unfortunately you can still get some erattic behavior w/ the workaround in place. This will be fixed for our beta 7 release. This happens only when deriving from a type that has a large number of virtual methods, and unfortunately System.Windows.Forms hits this pretty heavily. Do you want to help develop Dynamic languages on CLR? (http://members.microsoft.com/careers/search/details.aspx?JobID=6D4754DE-11F0-45DF-8B78-DC1B43134038) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jonathan Jacobs Sent: Friday, May 05, 2006 8:50 AM To: Discussion of IronPython Subject: [IronPython] Overriding derived methods Hi, I'm wondering how I override methods in a derived object, I'm not sure whether this is the problem I'm experiencing or not but it looks that way. Defining my own form object, with OnKeyUp method: >>> class MyForm(Form): ... def OnKeyUp(self, e): ... print '!!!' ... Form.OnKeyUp(self, e) ... The problem is that OnKeyUp in my Python object doesn't actually fire when it should. I know I could do this by attaching an event but according to the MSDN docs overriding the method in derived classes is the preferred way to handle the event, it certainly seems cleaner. Regards -- Jonathan _______________________________________________ users mailing list users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com _______________________________________________ users mailing list users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com