Upgrade From Silverlight 4 to Silverlight 5 causing AccessViolationException

Question

We have upgraded our project from Silverlight 4 to Silverlight 5 and now we are experiencing AccessViolationException from time to time in different places in the code, this exception is also causing the browser to crash.

Is there any guideline how to prevent this from happening?

I am adding the stack trace where the AccessViolationException was popped:

[Managed to Native Transition]
System.Windows.dll!MS.Internal.XcpImports.SetValue(MS.Internal.IManagedPeerBase obj, System.Windows.DependencyProperty property, string s) + 0x6f bytes
System.Windows.dll!MS.Internal.XcpImports.SetValue(MS.Internal.IManagedPeerBase doh, System.Windows.DependencyProperty property, object obj) + 0x2ce bytes
System.Windows.dll!System.Windows.DependencyObject.SetObjectValueToCore(System.Windows.DependencyProperty dp, object value) + 0xd6 bytes
System.Windows.dll!System.Windows.DependencyObject.SetEffectiveValue(System.Windows.DependencyProperty property, ref System.Windows.EffectiveValueEntry newEntry, object newValue) + 0x35 bytes
System.Windows.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.DependencyProperty property, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry, System.Windows.DependencyObject.ValueOperation operation) + 0xe6 bytes
System.Windows.dll!System.Windows.DependencyObject.RefreshExpression(System.Windows.DependencyProperty dp) + 0x47 bytes
System.Windows.dll!System.Windows.Data.BindingExpression.SendDataToTarget() + 0xff bytes
System.Windows.dll!System.Windows.Data.BindingExpression.SourceAcquired() + 0x5f bytes
System.Windows.dll!System.Windows.Data.Debugging.BindingBreakPoint.BreakOnSharedType.AnonymousMethod__3() + 0x14 bytes
[Native to Managed Transition]
[Managed to Native Transition]
mscorlib.dll!System.Delegate.DynamicInvokeImpl(object[] args) + 0x6b bytes
mscorlib.dll!System.Delegate.DynamicInvoke(object[] args) + 0xb bytes
BindingDebugging!TextPropertyPanelxaml_5.BindingOperation(object BindingState) + 0x30 bytes
[Native to Managed Transition]
[Managed to Native Transition]
System.Windows.dll!System.Windows.Data.Debugging.BindingBreakPoint.BreakOnSharedType(System.Type emittedType, System.Windows.Data.Debugging.BindingDebugState debugState, int bindingNumber, int line, int column, System.Action callback) + 0xd5 bytes
System.Windows.dll!System.Windows.Data.Binding.EnsureBreakPoint(System.Windows.Data.Debugging.BindingDebugState debugState, System.Action callback, bool canDelay) + 0x1ff bytes
System.Windows.dll!System.Windows.Data.BindingExpression.System.Windows.IDataContextChangedListener.OnDataContextChanged(object sender, System.Windows.DataContextChangedEventArgs e) + 0xa4 bytes
System.Windows.dll!System.Windows.Data.BindingExpression.DataContextChanged(object sender, System.Windows.DataContextChangedEventArgs e) + 0xc bytes
System.Windows.dll!System.Windows.FrameworkElement.OnDataContextChanged(System.Windows.DataContextChangedEventArgs e) + 0x1e bytes
System.Windows.dll!System.Windows.FrameworkElement.OnAncestorDataContextChanged(System.Windows.DataContextChangedEventArgs e) + 0x26 bytes
System.Windows.dll!System.Windows.FrameworkElement.NotifyDataContextChanged(System.Windows.DataContextChangedEventArgs e) + 0xcb bytes
System.Windows.dll!System.Windows.FrameworkElement.OnAncestorDataContextChanged(System.Windows.DataContextChangedEventArgs e) + 0x32 bytes
System.Windows.dll!System.Windows.FrameworkElement.NotifyDataContextChanged(System.Windows.DataContextChangedEventArgs e) + 0xcb bytes
System.Windows.dll!System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyProperty dp) + 0x47 bytes
System.Windows.dll!System.Windows.DependencyObject.RaisePropertyChangeNotifications(System.Windows.DependencyProperty dp, object oldValue, object newValue) + 0x5e bytes
System.Windows.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.DependencyProperty property, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry, System.Windows.DependencyObject.ValueOperation operation) + 0xf3 bytes
System.Windows.dll!System.Windows.DependencyObject.SetValueInternal(System.Windows.DependencyProperty dp, object value, bool allowReadOnlySet, bool isBindingInStyleSetter) + 0x248 bytes
System.Windows.dll!System.Windows.FrameworkElement.DataContext.set(object value) + 0x28 bytes
ContentManagerSilverlight!ContentManagerSilverlight.TextPropertyPanel.set_ItemDetails(ContentManagerClientTypes.ServiceLibrary.ItemDetails value) Line 132 + 0xd bytes
ContentManagerSilverlight!ContentManagerSilverlight.PropertiesPanelControl.SetPanelsVisability(ContentManagerClientTypes.ServiceLibrary.ItemDetails p_item) Line 78 + 0x1f bytes
ContentManagerSilverlight!ContentManagerSilverlight.PropertiesPanelControl.HandleEvents(Object p_sender, String p_propertyName, Object p_propertyValue) Line 130 + 0x35 bytes
ContentManagerClientTypes!ContentManagerClientTypes.Messenger.Send(Object p_sender, String p_propertyName, Object p_propertyValue) Line 34 + 0x55 bytes
ContentManagerSilverlight!ContentManagerSilverlight.LibraryViewModel.set_SelectedItemDetails(ContentManagerClientTypes.ServiceLibrary.ItemDetails value) Line 181 + 0x25 bytes
[Native to Managed Transition]
[Managed to Native Transition]
System.Windows.dll!System.Windows.CLRPropertyListener.Value.set(object value) + 0x23 bytes
System.Windows.dll!System.Windows.PropertyAccessPathStep.Value.set(object value) + 0xe bytes
System.Windows.dll!System.Windows.Data.BindingExpression.UpdateValue() + 0x692 bytes
System.Windows.dll!System.Windows.Data.Debugging.BindingBreakPoint.BreakOnSharedType.AnonymousMethod__3() + 0x14 bytes
[Native to Managed Transition]
[Managed to Native Transition]
mscorlib.dll!System.Delegate.DynamicInvokeImpl(object[] args) + 0x6b bytes
mscorlib.dll!System.Delegate.DynamicInvoke(object[] args) + 0xb bytes
BindingDebugging!LibraryThumbViewxaml.BindingOperation(object BindingState) + 0x30 bytes
[Native to Managed Transition]
[Managed to Native Transition]
System.Windows.dll!System.Windows.Data.Debugging.BindingBreakPoint.BreakOnSharedType(System.Type emittedType, System.Windows.Data.Debugging.BindingDebugState debugState, int bindingNumber, int line, int column, System.Action callback) + 0xd5 bytes
System.Windows.dll!System.Windows.Data.Binding.EnsureBreakPoint(System.Windows.Data.Debugging.BindingDebugState debugState, System.Action callback, bool canDelay) + 0x1ff bytes
System.Windows.dll!System.Windows.Data.BindingExpression.UpdateValueEnsureBreak() + 0x53 bytes
System.Windows.dll!System.Windows.Data.BindingExpression.UpdateValueIfNecessary() + 0x68 bytes
System.Windows.dll!System.Windows.Data.BindingExpression.TargetPropertyChanged(System.Windows.DependencyObject sender, System.Windows.DependencyProperty dp) + 0x2b bytes
System.Windows.dll!System.Windows.DependencyObject.OnPropertyChanged(System.Windows.DependencyProperty dp) + 0x16 bytes
System.Windows.dll!System.Windows.FrameworkElement.OnPropertyChanged(System.Windows.DependencyProperty dp) + 0x54 bytes
System.Windows.dll!System.Windows.Controls.Primitives.Selector.OnPropertyChanged(System.Windows.DependencyProperty dp) + 0x13 bytes
System.Windows.dll!System.Windows.DependencyObject.RaisePropertyChangeNotifications(System.Windows.DependencyProperty dp, object oldValue, object newValue) + 0x5e bytes
System.Windows.dll!System.Windows.DependencyObject.UpdateEffectiveValue(System.Windows.DependencyProperty property, System.Windows.EffectiveValueEntry oldEntry, ref System.Windows.EffectiveValueEntry newEntry, System.Windows.DependencyObject.ValueOperation operation) + 0xf3 bytes
System.Windows.dll!System.Windows.DependencyObject.SetValueInternal(System.Windows.DependencyProperty dp, object value, bool allowReadOnlySet, bool isBindingInStyleSetter) + 0x1c9 bytes
System.Windows.dll!System.Windows.Controls.Primitives.Selector.UpdatePublicSelectionProperties(int oldSelectedIndex, int newSelectedIndex, object oldSelectedItem, object newSelectedItem) + 0xca bytes
System.Windows.dll!System.Windows.Controls.Primitives.Selector.SelectionChanger.End() + 0x172 bytes
System.Windows.dll!System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(int oldIndex, int newIndex) + 0x170 bytes
System.Windows.dll!System.Windows.Controls.ListBox.MakeSingleSelection(int index) + 0x3e bytes
System.Windows.dll!System.Windows.Controls.ListBox.HandleItemSelection(System.Windows.Controls.ListBoxItem item, bool isMouseSelection) + 0x7a bytes
System.Windows.dll!System.Windows.Controls.ListBox.OnListBoxItemClicked(System.Windows.Controls.ListBoxItem item) + 0x7 bytes
System.Windows.dll!System.Windows.Controls.ListBoxItem.OnMouseLeftButtonDown(System.Windows.Input.MouseButtonEventArgs e) + 0x54 bytes
System.Windows.dll!System.Windows.Controls.Control.OnMouseLeftButtonDown(System.Windows.Controls.Control ctrl, System.EventArgs e) + 0x38 bytes
System.Windows.dll!MS.Internal.JoltHelper.FireEvent(System.IntPtr unmanagedObj, System.IntPtr unmanagedObjArgs, int argsTypeIndex, int actualArgsTypeIndex, string eventName, uint flags) + 0x28f bytes
[Appdomain Transition]

Answer 1

I have found one source of the issue (I am not sure that it solved all these AccessViolationException issues), but my system is much more stable now.

Apparently the use of Bureau Black Theme from the latest toolkit, with combination of TextBox, caused this issue.

What I have done to solve it is to recompile this theme without the Style of the TextBox and the issue of AccessViolation has disappeared, at this stage we didn't do deep testing on the entire system, but this is solving an issue that I could repro rapidly so I assume that this might have fixed more issues like that.

Hope it helped someone.

Regards,

Lior