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+--- Thread: System.NullReferenceException (/showthread.php?tid=106)
System.NullReferenceException - piaoyl - 04-21-2011
the 3ds file is big (50M+)
ModelSceneCamera.TargetViewport3D = MainViewport3D;
show error:
System.NullReferenceException: 未将对象引用设置到对象的实例。
at Ab3d.Cameras.BaseCamera.Ӷ()
at Ab3d.Cameras.BaseCamera.RefreshCurrentCamera()
at Ab3d.Cameras.BaseCamera.OnCameraLoaded()
at Ab3d.Cameras.BaseCamera.Ӳ(Object Ӱ, RoutedEventArgs ӱ)
at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
at System.Windows.BroadcastEventHelper.BroadcastEvent(DependencyObject root, RoutedEvent routedEvent)
at System.Windows.BroadcastEventHelper.BroadcastLoadedEvent(Object root)
at MS.Internal.LoadedOrUnloadedOperation.DoWork()
at System.Windows.Media.MediaContext.FireLoadedPendingCallbacks()
at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Boolean isSingleParameter)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)