Thanks Dino. Here is the actual stack trace:
>>> form.Invoke(DoSomething) Object reference not set to an instance of an object. at IronPython.Runtime.Operations.Ops.GetDelegate(Object o, Type delegateType) at IronPython.Runtime.Converter.TryConvertToDelegate(Object value, Type to, C onversion& conversion) at IronPython.Runtime.Converter.ConvertToDelegate(Object value, Type to) at IronPython.Runtime.NewConverter.ConvertToDelegate(Object o, Type t) at Invoke##18(ICallerContext , Object , Object ) at IronPython.Runtime.Calls.CallTargetWithContext2.Invoke(ICallerContext cont ext, Object arg0, Object arg1) at IronPython.Runtime.Calls.FastCallableWithContextAny.CallInstance(ICallerCo ntext context, Object arg0, Object arg1) at IronPython.Runtime.Calls.BoundBuiltinFunction.Call(ICallerContext context, Object arg0) at IronPython.Runtime.Operations.Ops.CallWithContext(ICallerContext context, Object func, Object arg0) at <stdin>##17(ModuleScope ) at IronPython.Runtime.CompiledCodeDelegate.Invoke(ModuleScope moduleScope) at IronPython.Runtime.CompiledCode.Run(ModuleScope moduleScope) at IronPython.Hosting.PythonEngine.ExecuteToConsole(String text, ModuleScope defaultScope) at IronPythonConsole.PythonCommandLine.DoOneInteractive(ModuleScope topFrame) at IronPythonConsole.PythonCommandLine.<RunInteractiveLoop>b__6(Boolean& cont inueInteractionArgument) at IronPythonConsole.PythonCommandLine.TryInteractiveAction(InteractiveAction interactiveAction, Boolean& continueInteraction) SystemError: Object reference not set to an instance of an object. >>> Dino Viehland wrote: > CallTarget0 has actually just moved to IronPython.Runtime.Calls (we used to > have over 200 classes in IronPython.Runtime which was just too many). > > The exception you're getting is still potentially interesting - could you > send us the stack trace when running w/ -X:ExceptionDetail ? > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrzej Krzywda > Sent: Wednesday, June 21, 2006 9:52 AM > To: users@lists.ironpython.com > Subject: [IronPython] CallTarget0 > > Hi, > > We are in the process of upgrading an application from IronPython Beta 5 to > Beta 8. Previously it would execute certain functions on the thread > belonging to our GUI controls: > > def DoSomething() > pass > > form.Invoke(CallTarget0(DoSomething)) > > In beta 8, the CallTarget0 class has been removed - what should we replace it > with? We tried simply passing the function to the Invoke() method, but this > failed with "SystemError: Object reference not set to an instance of an > object." > > > Regards, > > Andrzej Krzywda > _______________________________________________ > 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 > > _______________________________________________ users mailing list users@lists.ironpython.com http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
