Every time I try to add a GridView i get "Microsoft Visual Studio XAML Designer has stopped working." Then Close or Debug. Then after clicking Close I get this error in the window:
An Unhandled Exception has occurred
System.ArgumentException
Property 'System.Object ItemsSource' is not defined for type 'Telerik.Windows.Controls.RadGridView'
at System.Linq.Expressions.Expression.Property(Expression expression, PropertyInfo property)
at System.Linq.Expressions.Expression.Property(Expression expression, MethodInfo propertyAccessor)
at Telerik.Windows.Controls.GridView.Design.RadGridViewMetadata.<.ctor>b__0(AttributeCallbackBuilder b)
at MS.Internal.Metadata.MutableAttributeTable.ExpandAttributes(Type type, AttributeList attributes)
at MS.Internal.Metadata.MutableAttributeTable.GetExpandedAttributes(Type type, Object callbackParam, GetAttributesCallback callback)
at MS.Internal.Metadata.MutableAttributeTable.GetCustomAttributes(Type type)
at Microsoft.Windows.Design.Metadata.AttributeTable.GetCustomAttributes(Type type)
at Microsoft.VisualStudio.DesignTools.Designer.Metadata.MetadataStore.<GetAttributes>d__29.MoveNext()
at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.<MergeAttributesIterator>d__9.MoveNext()
at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.GetAttributes(MemberInfo memberInfo, Type attributeType, IPlatformMetadata platformMetadata, Boolean checkBaseTypes, Func`3 canContinueCheckingBaseTypes)
at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.GetAttributes(Type type, IPlatformMetadata platformMetadata, Boolean checkBaseTypes)
at Microsoft.VisualStudio.DesignTools.Designer.Metadata.RuntimeProjectType.GetAllAttributes(Boolean inherit)
at Microsoft.VisualStudio.DesignTools.Designer.Metadata.TypeUtilities.IsTypeSupported(IProjectMetadata typeResolver, ITypeId typeId)
at Microsoft.VisualStudio.DesignTools.Designer.Tools.GenericControlTool.get_IsVisible()
at Microsoft.VisualStudio.DesignTools.Designer.Tools.GenericControlTool.GetExtensibleEquivalent()
at Microsoft.VisualStudio.DesignTools.Designer.ViewModel.Extensibility.ExtensibilityManager.ToolManager_ActiveToolChanged(Object sender, ToolEventArgs e)
at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolEventHandler.Invoke(Object sender, ToolEventArgs e)
at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.OnActiveToolChanged(ToolEventArgs e)
at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.set_ActiveTool(Tool value)
at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.UpdateHostTool()
at Microsoft.VisualStudio.DesignTools.Designer.Tools.ToolManager.HostToolService_ActiveToolChanged(Object sender, EventArgs e)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.LocalEvent`2.<>c__DisplayClass11_0.<Invoke>b__0()
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.Call.InvokeWorker()
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.Call.Invoke(Boolean waitingInExternalCall)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.InvokeCall(Call call)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.ProcessQueue(CallQueue queue)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.ProcessInboundQueue(Int32 identity)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.ProcessMessage(Int32 msg, IntPtr wParam, IntPtr lParam, Boolean elevatedQuery, Boolean& handled)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.STAMarshaler.OnWindowMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.Remoting.MessageOnlyHwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.DesignerProcess.RunApplication()
at Microsoft.VisualStudio.DesignTools.DesignerContract.Isolation.DesignerProcess.<>c__DisplayClass3_0.<Main>b__0()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()