I am using PRISM's region manager to load the docking panes in my main Shell screen. Here is the code I have in the main window xaml.
<Grid>
<telerik:RadDocking AllowUnsafeMode="True" Grid.Row="1"> <telerik:RadDocking.DocumentHost> <!--<ItemsControl x:Name="CenterRadPanelGroup" prism:RegionManager.RegionName="Region_ShellCenter" Background="White"/>--> <telerik:RadSplitContainer Name="CenterRadPanelGroup" prism:RegionManager.RegionName="{x:Static UICommon:Constants.REGION_SHELL_CENTER}"/> </telerik:RadDocking.DocumentHost> <telerik:RadSplitContainer InitialPosition="DockedLeft" Name="LeftRadPanelGroup" prism:RegionManager.RegionName="{x:Static UICommon:Constants.REGION_SHELL_LEFT}" /> <telerik:RadSplitContainer InitialPosition="DockedRight" Name="RightRadPanelGroup" prism:RegionManager.RegionName="{x:Static UICommon:Constants.REGION_SHELL_RIGHT}"/> <telerik:RadSplitContainer InitialPosition="DockedBottom" Name="BottomRadPanelGroup" prism:RegionManager.RegionName="{x:Static UICommon:Constants.REGION_SHELL_BOTTOM}"/> </telerik:RadDocking> </Grid>
And this is the usercontrol for RadSplitContainer docked Right in the shell.<telerik:RadPaneGroup x:Class="MyClass" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" xmlns:local="clr-namespace:Simulation.UI"> <telerik:RadPane Header="1"/> <telerik:RadPane Header="2"/> <telerik:RadPane Header="3"/> <telerik:RadPane Header="4"> <local:SimulationDataControl /> </telerik:RadPane> </telerik:RadPaneGroup>
The RadPaneGroup renders properly in the mainwindow.
But when I try to pin it, it throws the following exception.Message :- Object reference not set to an instance of an object.
Source :- Telerik.Windows.Controls.Docking
StackTrace :- at Telerik.Windows.Controls.RadDocking.GetState(ISplitItem item)
at Telerik.Windows.Controls.RadDocking.OnRadPanePinChange(Object sender, PinChangeEventArgs args)at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at System.Windows.RoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
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 Telerik.Windows.Controls.RadPane.OnPinChange(PinChangeEventArgs args)
at Telerik.Windows.Controls.RadPane.ChangePin(Boolean isPinned)
at Telerik.Windows.Controls.RadPane.OnIsPinnedChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
at Telerik.Windows.Controls.RadPane.set_IsPinned(Boolean value)
at Telerik.Windows.Controls.Docking.PaneGroupBase.ExecuteCommand(RadPane pane, ICommand command, PaneGroupBase groupBase)
at Telerik.Windows.Controls.Docking.PaneGroupBase.<>c__DisplayClass3.<OnPaneCommandInvoke>b__2()
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(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.Threading.Dispatcher.Run()
at System.Windows.Application.RunDispatcher(Object ignore)
at System.Windows.Application.RunInternal(Window window)
at System.Windows.Application.Run(Window window)
at System.Windows.Application.Run()
2 Answers, 1 is accepted
The RadDocking control doesn't support PRISM out of the box. What I would suggest is using the RadPaneGroup as prism regions. You could find additional information about how to use the RadDocking control with prism here:
- Miroslav Nedyalkov's blog post - http://blogs.telerik.com/blogs/posts/09-08-31/using-the-raddocking-control-with-prism.aspx
- forum thread - http://www.telerik.com/community/forums/silverlight/docking/prism-4-and-telerik-raddocking.aspx
Hope this helps.
Greetings,
George
the Telerik team
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