MVVM Prism

[Garry]

I've been toying around with trying to load modules in DockPanes using MVVM Prism. I can do it with Tabs, but have not been able to figure out how to do it with DockPanes.

Any ideas?

I get the below cast error when I try and add the module to a Region.

Microsoft.Practices.Composite.Modularity.ModuleInitializeException was unhandled
  Message="An exception occurred while initializing module 'Help'. \r\n    - The exception message was: Unable to cast object of type 'VistaAdmin.Help.Presentation.HelpView' to type 'Telerik.Windows.Controls.RadPane'.\r\n    - The Assembly that the module was trying to be loaded from was:VistaAdmin.Help, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null\r\n    Check the InnerException property of the exception for more information. If the exception occurred while creating an object in a DI container, you can exception.GetRootException() to help locate the root cause of the problem. \r\n  "
  Source="Microsoft.Practices.Composite"
  ModuleName="Help"
  StackTrace:
       at Microsoft.Practices.Composite.Modularity.ModuleInitializer.HandleModuleInitializationError(ModuleInfo moduleInfo, String assemblyName, Exception exception) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 106
       at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 68
       at Microsoft.Practices.Composite.Modularity.ModuleManager.InitializeModule(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 248
       at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesThatAreReadyForLoad() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 209
       at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModuleTypes(IEnumerable`1 moduleInfos) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 168
       at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesWhenAvailable() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 142
       at Microsoft.Practices.Composite.Modularity.ModuleManager.Run() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 71
       at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.InitializeModules() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 239
       at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run(Boolean runWithDefaultConfiguration) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 112
       at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 69
       at VistaAdmin.Shell.App.RunInDebugMode() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Shell\App.xaml.cs:line 44
       at VistaAdmin.Shell.App.OnStartup(StartupEventArgs e) in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Shell\App.xaml.cs:line 25
       at System.Windows.Application.<.ctor>b__0(Object unused)
       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)
       at System.Windows.Threading.DispatcherOperation.InvokeImpl()
       at System.Threading.ExecutionContext.runTryCode(Object userData)
       at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
       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, Boolean isSingleParameter)
       at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Boolean isSingleParameter, Delegate catchHandler)
       at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Boolean isSingleParameter)
       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.TranslateAndDispatchMessage(MSG& msg)
       at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
       at System.Windows.Application.RunInternal(Window window)
       at VistaAdmin.Shell.App.Main() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Shell\obj\Debug\App.g.cs:line 0
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.InvalidCastException
       Message="Unable to cast object of type 'VistaAdmin.Help.Presentation.HelpView' to type 'Telerik.Windows.Controls.RadPane'."
       Source="Telerik.Windows.Controls.Docking"
       StackTrace:
            at Telerik.Windows.Controls.RadPaneGroup.OnItemsChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadPaneGroup.cs:line 964
            at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
            at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
            at System.Windows.Controls.ItemCollection.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
            at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
            at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
            at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
            at MS.Internal.Controls.InnerItemCollectionView.Add(Object item)
            at System.Windows.Controls.ItemCollection.Add(Object newItem)
            at Telerik.Windows.Controls.RadSplitContainer.PrepareContainerForItemOverride(DependencyObject element, Object item) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\RadSplitContainer.cs:line 673
            at System.Windows.Controls.ItemsControl.MS.Internal.Controls.IGeneratorHost.PrepareItemContainer(DependencyObject container, Object item)
            at System.Windows.Controls.ItemContainerGenerator.System.Windows.Controls.Primitives.IItemContainerGenerator.PrepareItemContainer(DependencyObject container)
            at System.Windows.Controls.Panel.addChildren(GeneratorPosition pos, Int32 itemCount)
            at System.Windows.Controls.Panel.OnItemsChangedInternal(Object sender, ItemsChangedEventArgs args)
            at System.Windows.Controls.Panel.OnItemsChanged(Object sender, ItemsChangedEventArgs args)
            at System.Windows.Controls.ItemContainerGenerator.OnItemAdded(Object item, Int32 index)
            at System.Windows.Controls.ItemContainerGenerator.OnCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
            at System.Windows.Controls.ItemContainerGenerator.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
            at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
            at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
            at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
            at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
            at System.Windows.Controls.ItemCollection.System.Windows.IWeakEventListener.ReceiveWeakEvent(Type managerType, Object sender, EventArgs e)
            at System.Windows.WeakEventManager.DeliverEventToList(Object sender, EventArgs args, ListenerList list)
            at System.Windows.WeakEventManager.DeliverEvent(Object sender, EventArgs args)
            at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
            at System.Windows.Data.CollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
            at System.Windows.Data.ListCollectionView.ProcessCollectionChangedWithAdjustedIndex(NotifyCollectionChangedEventArgs args, Int32 adjustedOldIndex, Int32 adjustedNewIndex)
            at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
            at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedAction action, Object item, Int32 index)
            at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
            at System.Collections.ObjectModel.Collection`1.Add(T item)
            at MS.Internal.Data.EnumerableCollectionView.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args)
            at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
            at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.cs:line 102
            at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.AddAndNotify(IList items) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.Desktop.cs:line 30
            at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.UnderlyingCollection_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.cs:line 142
            at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
            at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedAction action, Object item, Int32 index)
            at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
            at System.Collections.ObjectModel.Collection`1.Add(T item)
            at Microsoft.Practices.Composite.Presentation.Regions.Region.InnerAdd(Object view, String viewName, IRegionManager scopedRegionManager) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 313
            at Microsoft.Practices.Composite.Presentation.Regions.Region.Add(Object view, String viewName, Boolean createRegionManagerScope) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 218
            at Microsoft.Practices.Composite.Presentation.Regions.Region.Add(Object view) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 189
            at VistaAdmin.Help.Applications.ModuleController.ShowHelpView() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Help\Applications\ModuleController.cs:line 55
            at VistaAdmin.Help.Applications.ModuleController.ShowContents() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Help\Applications\ModuleController.cs:line 62
            at VistaAdmin.Help.Applications.ModuleController.Initialize() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Help\Applications\ModuleController.cs:line 47
            at VistaAdmin.Help.Module.Initialize() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Help\Module.cs:line 34
            at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 64
       InnerException:

[Miroslav Nedyalkov]

Hi Garry,

 Most probably the problem is caused, because the default region adapter for ItemsControl (the TabControl and PaneGroup are ItemsControls) is using the ItemsSource property and unfortunately the RadPaneGroup control doesn't support this, because it is using the Items property internally. Please check the following article that shows how to create a custom region adapter for the RadPaneGroup control:

http://blogs.telerik.com/miroslavnedyalkov/posts/09-08-31/using_the_raddocking_control_with_prism.aspx

Hope this helps.

Sincerely yours,
Miroslav Nedyalkov
the Telerik team

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[Garry]

Miroslav,
That worked like a charm! I can't explain why a Custom Region Adapter never popped into my brain as I have had to use them in the past to achieve similar things. I guess I will use the excuse that this i the first tiem I am trying to integrate WPF RadControls in one of my apps.

You wouldn't have an already finsihed RegionAdpater for the RibbonBar sitting around somewhere would you? I know it would basically use the same concept, but if you happened to have one then it would save me a little time. That's my next task is to replace a toolbar with your RibbonBar.

Thanks as always!

[Valentin.Stoychev]

Hi Garry Clark,

We have users using the RibbonBar with Prism without problems. Let us know if you face with any.

Best wishes,
Valentin.Stoychev
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

[Garry]

Miroslav,
OK new situation. I have a DocumentHost that I am trying to now add RadDocumentPanes to. I have modified the RadGroup region adpater as such to accomodate this new type. Code is below. However I am now receiving an error of

"Element already has a logical parent. It must be detached from the old parent before it is attached to a new one." I have attached the full error details below.

Also to note that if I change the type back to RadPane it works properly. If I leave the RegionAdpater as was, but try and add a RadDocumentPane to a RadPaneGroup then I get an Object not set to an instance error.

Have any ideas? Do I perhaps need to create another regionadapter for type DocumentHost? That doesn't make sense to me as I am actually adding the RadDocumentPane to a RadPaneGroup the same as I do with RadPanes, but just a thought.

RegionAdapter Code

Have any ideas? Do I perhaps need to create another regionadapter for type DocumentHost? That doesn't make sense to me as I am actually adding the RadDocumentPane to a RadPaneGroup the same as I do with RadPanes, but just a thought.

public class RadPaneGroupRegionAdapter : RegionAdapterBase<RadPaneGroup>
    {
        public RadPaneGroupRegionAdapter(IRegionBehaviorFactory regionBehaviorFactory)
            : base(regionBehaviorFactory)
        {
        }

        protected override void Adapt(IRegion region, RadPaneGroup regionTarget)
        {
            region.Views.CollectionChanged += (s, e) =>
            {
                switch (e.Action)
                {
                    case NotifyCollectionChangedAction.Add:
                        foreach (var item in e.NewItems.OfType<RadPane>())
                        {
                            regionTarget.Items.Add(item);
                        }
                        foreach (var item in e.NewItems.OfType<RadDocumentPane>())
                        {
                            regionTarget.Items.Add(item);
                        }
                        break;
                    case NotifyCollectionChangedAction.Remove:
                        foreach (var item in e.OldItems.OfType<RadPane>())
                        {
                            item.RemoveFromParent();
                        }
                        foreach (var item in e.OldItems.OfType<RadDocumentPane>())
                        {
                            item.RemoveFromParent();
                        }
                        break;
                    case NotifyCollectionChangedAction.Replace:
                        var oldItems = e.OldItems.OfType<RadPane>();
                        var newItems = e.NewItems.OfType<RadPane>();
                        var oldDocItems = e.OldItems.OfType<RadDocumentPane>();
                        var newDocItems = e.NewItems.OfType<RadDocumentPane>();
                        var newItemsEnumerator = newItems.GetEnumerator();
                        var newDocItemsEnumerator = newDocItems.GetEnumerator();
                        foreach (var oldItem in oldItems)
                        {
                            var parent = oldItem.Parent as ItemsControl;
                            if (parent != null && parent.Items.Contains(oldItem))
                            {
                                parent.Items[parent.Items.IndexOf(oldItem)] = newItemsEnumerator.Current;
                                if (!newItemsEnumerator.MoveNext())
                                {
                                    break;
                                }
                            }
                            else
                            {
                                oldItem.RemoveFromParent();
                                regionTarget.Items.Add(newItemsEnumerator.Current);
                            }
                        }
                        foreach (var oldDocItem in oldDocItems)
                        {
                            var parent = oldDocItem.Parent as ItemsControl;
                            if (parent != null && parent.Items.Contains(oldDocItem))
                            {
                                parent.Items[parent.Items.IndexOf(oldDocItem)] = newItemsEnumerator.Current;
                                if (!newItemsEnumerator.MoveNext())
                                {
                                    break;
                                }
                            }
                            else
                            {
                                oldDocItem.RemoveFromParent();
                                regionTarget.Items.Add(newDocItemsEnumerator.Current);
                            }
                        }
                        break;
                    case NotifyCollectionChangedAction.Reset:
                        regionTarget
                            .EnumeratePanes()
                            .ToList()
                            .ForEach(p => p.RemoveFromParent());
                        break;
                    default:
                        break;
                }
            };

            foreach (var view in region.Views.OfType<RadPane>())
            {
                regionTarget.Items.Add(view);
            }
            foreach (var view in region.Views.OfType<RadDocumentPane>())
            {
                regionTarget.Items.Add(view);
            }
        }

        protected override IRegion CreateRegion()
        {
            return new AllActiveRegion();
        }
    }

Error

Timestamp: 2/23/2010 9:13:29 PM
Message: HandlingInstanceID: 450c4eaa-c8d8-4fa9-93f2-84cb5d5dfb11
An exception of type 'Microsoft.Practices.Composite.Modularity.ModuleInitializeException' occurred and was caught.
------------------------------------------------------------------------------------------------------------------
02/23/2010 16:13:29
Type : Microsoft.Practices.Composite.Modularity.ModuleInitializeException, Microsoft.Practices.Composite, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null
Message : An exception occurred while initializing module 'Configuration'.
    - The exception message was: Element already has a logical parent. It must be detached from the old parent before it is attached to a new one.
    - The Assembly that the module was trying to be loaded from was:VistaAdmin.Configuration, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
    Check the InnerException property of the exception for more information. If the exception occurred while creating an object in a DI container, you can exception.GetRootException() to help locate the root cause of the problem.

Source : Microsoft.Practices.Composite
Help link :
ModuleName : Configuration
Data : System.Collections.ListDictionaryInternal
TargetSite : Void HandleModuleInitializationError(Microsoft.Practices.Composite.Modularity.ModuleInfo, System.String, System.Exception)
Stack Trace :    at Microsoft.Practices.Composite.Modularity.ModuleInitializer.HandleModuleInitializationError(ModuleInfo moduleInfo, String assemblyName, Exception exception) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 106
   at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 68
   at Microsoft.Practices.Composite.Modularity.ModuleManager.InitializeModule(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 248
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesThatAreReadyForLoad() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 209
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModuleTypes(IEnumerable`1 moduleInfos) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 168
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesWhenAvailable() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 142
   at Microsoft.Practices.Composite.Modularity.ModuleManager.Run() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 71
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.InitializeModules() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 239
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run(Boolean runWithDefaultConfiguration) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 112
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 69
   at VistaAdmin.Shell.App.RunInDebugMode() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Shell\App.xaml.cs:line 48

Additional Info:

MachineName : GCLARK-LAPTOP
TimeStamp : 2/23/2010 9:13:29 PM
FullName : Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
AppDomainName : VistaAdmin.vshost.exe
ThreadIdentity :
WindowsIdentity : GClark-Laptop\GClark
    Inner Exception
    ---------------
    Type : System.InvalidOperationException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
    Message : Element already has a logical parent. It must be detached from the old parent before it is attached to a new one.
    Source : PresentationFramework
    Help link :
    Data : System.Collections.ListDictionaryInternal
    TargetSite : System.Windows.DependencyObject AssertPristineModelChild(System.Object)
    Stack Trace :    at MS.Internal.Controls.InnerItemCollectionView.AssertPristineModelChild(Object item)
       at MS.Internal.Controls.InnerItemCollectionView.Add(Object item)
       at System.Windows.Controls.ItemCollection.Add(Object newItem)
       at VistaAdmin.Shell.Presentation.RadPaneGroupRegionAdapter.<>c__DisplayClass2.<Adapt>b__0(Object s, NotifyCollectionChangedEventArgs e) in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Shell\Presentation\RadPaneGroupRegionAdapter.cs:line 31
       at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
       at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.cs:line 102
       at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.AddAndNotify(IList items) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.Desktop.cs:line 30
       at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.UnderlyingCollection_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.cs:line 142
       at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
       at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedAction action, Object item, Int32 index)
       at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
       at System.Collections.ObjectModel.Collection`1.Add(T item)
       at Microsoft.Practices.Composite.Presentation.Regions.Region.InnerAdd(Object view, String viewName, IRegionManager scopedRegionManager) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 313
       at Microsoft.Practices.Composite.Presentation.Regions.Region.Add(Object view, String viewName, Boolean createRegionManagerScope) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 218
       at Microsoft.Practices.Composite.Presentation.Regions.Region.Add(Object view) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 189
       at VistaAdmin.Configuration.Applications.ModuleController.ShowConfiguration() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Configuration\Applications\ModuleController.cs:line 48
       at VistaAdmin.Configuration.Applications.ModuleController.Initialize() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Configuration\Applications\ModuleController.cs:line 35
       at VistaAdmin.Configuration.Module.Initialize() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Configuration\Module.cs:line 30
       at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 64


Category: General
Priority: 0
EventId: 100
Severity: Error
Title:Enterprise Library Exception Handling
Machine: GCLARK-LAPTOP
Application Domain: VistaAdmin.vshost.exe
Process Id: 4532
Process Name: C:\Users\GClark\Documents\Visual Studio 2008\Output\Debug\VistaAdmin.vshost.exe
Win32 Thread Id: 1312
Thread Name:
Extended Properties:

[Miroslav Nedyalkov]

Hi Garry,

 As the RadDocumentPane inherits from the RadPane this line of code:

var view in region.Views.OfType<RadDocumentPane>()

will return a subset of the result of the following line:

var view in region.Views.OfType<RadPane>()

So you will add all document panes twice - this causes the exception. As far as I know the region adapter in the blog post should work fine with RadDocumentPanes. I tried the sample application from the blog post and it forks fine with DocumentPanes.

Could you please share more details about the problem you are experiencing if you don't change the custom region adapter, suggested in the blog post?

Sincerely yours,
Miroslav Nedyalkov
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

[Garry]

Miroslav,
OK I have changed my RegionAdapter back to the way it was and removed all of the RadDocumentPane code. The reason I added the code was because of the error below that I now get when I try and add this module to the DocumentHost region. The error is internal to Microsoft.Practices.Composite and I can't seem to find the cause of it. I thought it was due to the fact that it didn't know how to deal with the RadDocumentPane object, but according to your last post that is not the case. Below I have attached the view xaml for my module I am trying to add and the xaml from the shell/region I am trying to add it to.

Also just to note that if I add this to a standalone PaneGroup rather than a PaneGroup inside of a DocumentHost everything works fine. It defintely has something to do with the way I am trying to use the DocumentHost.

Error

Timestamp: 2/24/2010 4:41:09 PM
Message: HandlingInstanceID: 1d1c2b42-be85-422c-9d05-6cf5df477a25
An exception of type 'Microsoft.Practices.Composite.Modularity.ModuleInitializeException' occurred and was caught.
------------------------------------------------------------------------------------------------------------------
02/24/2010 11:41:09
Type : Microsoft.Practices.Composite.Modularity.ModuleInitializeException, Microsoft.Practices.Composite, Version=2.0.0.0, Culture=neutral, PublicKeyToken=null
Message : An exception occurred while initializing module 'Configuration'.
    - The exception message was: Object reference not set to an instance of an object.
    - The Assembly that the module was trying to be loaded from was:VistaAdmin.Configuration, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
    Check the InnerException property of the exception for more information. If the exception occurred while creating an object in a DI container, you can exception.GetRootException() to help locate the root cause of the problem.

Source : Microsoft.Practices.Composite
Help link :
ModuleName : Configuration
Data : System.Collections.ListDictionaryInternal
TargetSite : Void HandleModuleInitializationError(Microsoft.Practices.Composite.Modularity.ModuleInfo, System.String, System.Exception)
Stack Trace :    at Microsoft.Practices.Composite.Modularity.ModuleInitializer.HandleModuleInitializationError(ModuleInfo moduleInfo, String assemblyName, Exception exception) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 106
   at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 68
   at Microsoft.Practices.Composite.Modularity.ModuleManager.InitializeModule(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 248
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesThatAreReadyForLoad() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 209
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModuleTypes(IEnumerable`1 moduleInfos) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 168
   at Microsoft.Practices.Composite.Modularity.ModuleManager.LoadModulesWhenAvailable() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 142
   at Microsoft.Practices.Composite.Modularity.ModuleManager.Run() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleManager.cs:line 71
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.InitializeModules() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 239
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run(Boolean runWithDefaultConfiguration) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 112
   at Microsoft.Practices.Composite.UnityExtensions.UnityBootstrapper.Run() in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.UnityExtensions\UnityBootstrapper.cs:line 69
   at VistaAdmin.Shell.App.RunInDebugMode() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Shell\App.xaml.cs:line 48

Additional Info:

MachineName : GCLARK-LAPTOP
TimeStamp : 2/24/2010 4:41:09 PM
FullName : Microsoft.Practices.EnterpriseLibrary.ExceptionHandling, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
AppDomainName : VistaAdmin.vshost.exe
ThreadIdentity :
WindowsIdentity : GClark-Laptop\GClark
    Inner Exception
    ---------------
    Type : System.NullReferenceException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
    Message : Object reference not set to an instance of an object.
    Source : VistaAdmin.PTFS
    Help link :
    Data : System.Collections.ListDictionaryInternal
    TargetSite : VistaAdmin.Infrastructure.Documents.Document GetActiveDocument()
    Stack Trace :    at VistaAdmin.PTFS.Applications.DocumentController.GetActiveDocument() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.PTFS\Applications\DocumentController.cs:line 36
       at VistaAdmin.Infrastructure.Module.Applications.DocumentManager.ActiveViewsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Infrastructure.Module\Applications\DocumentManager.cs:line 181
       at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)
       at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.cs:line 102
       at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.AddAndNotify(IList items) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.Desktop.cs:line 30
       at Microsoft.Practices.Composite.Presentation.Regions.ViewsCollection.UnderlyingCollection_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\ViewsCollection.cs:line 142
       at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
       at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedAction action, Object item, Int32 index)
       at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
       at System.Collections.ObjectModel.Collection`1.Add(T item)
       at Microsoft.Practices.Composite.Presentation.Regions.Region.InnerAdd(Object view, String viewName, IRegionManager scopedRegionManager) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 313
       at Microsoft.Practices.Composite.Presentation.Regions.Region.Add(Object view, String viewName, Boolean createRegionManagerScope) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 218
       at Microsoft.Practices.Composite.Presentation.Regions.Region.Add(Object view) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite.Presentation\Regions\Region.cs:line 189
       at VistaAdmin.Configuration.Applications.ModuleController.ShowConfiguration() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Configuration\Applications\ModuleController.cs:line 48
       at VistaAdmin.Configuration.Applications.ModuleController.Initialize() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Configuration\Applications\ModuleController.cs:line 35
       at VistaAdmin.Configuration.Module.Initialize() in C:\Users\GClark\Documents\Visual Studio 2008\Projects\VistaAdmin\VistaAdmin.Configuration\Module.cs:line 30
       at Microsoft.Practices.Composite.Modularity.ModuleInitializer.Initialize(ModuleInfo moduleInfo) in D:\Application Installs\Composite Controls 2009\CAL\Desktop\Composite\Modularity\ModuleInitializer.cs:line 64


Category: General
Priority: 0
EventId: 100
Severity: Error
Title:Enterprise Library Exception Handling
Machine: GCLARK-LAPTOP
Application Domain: VistaAdmin.vshost.exe
Process Id: 1604
Process Name: C:\Users\GClark\Documents\Visual Studio 2008\Output\Debug\VistaAdmin.vshost.exe
Win32 Thread Id: 2912
Thread Name:
Extended Properties:

Shell Region Xaml (Does not work when added here)

<radDock:RadDocking.DocumentHost>
                    <radDock:RadSplitContainer>
                        <radDock:RadPaneGroup x:Name="DocGroup" prismrgn:RegionManager.RegionName="{x:Static i:RegionNames.MainRegion}">

                        </radDock:RadPaneGroup>
                    </radDock:RadSplitContainer>
                </radDock:RadDocking.DocumentHost>

Shell Region Xaml (Does work when added here)

<radDock:RadSplitContainer Width="Auto"
                    Name="LeftContainer" InitialPosition="DockedLeft" MinWidth="200">
                    <radDock:RadPaneGroup x:Name="Group1" prismrgn:RegionManager.RegionName="{x:Static i:RegionNames.LeftRegion}">
                    </radDock:RadPaneGroup>
                </radDock:RadSplitContainer>

Module View Xaml

<telerikDocking:RadDocumentPane x:Class="VistaAdmin.Configuration.Presentation.ConfigurationView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:v="clr-namespace:VistaAdmin.Configuration.Presentation"
    xmlns:p="clr-namespace:VistaAdmin.Configuration.Properties"
    xmlns:telerikDocking="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Docking"
    Header="{Binding HeaderInfo}">
    <telerikDocking:RadDocumentPane.Content>
        <DockPanel>
            <StackPanel DockPanel.Dock="Top">
                <!--<ToolBar>
               <Button x:Name="installPTFButton" ToolTip="{x:Static p:Resources.Open}" Command="{Binding InstallPTFCommand}">
                    <Image Source="../Resources/open.png" Width="16" Height="16"/>
                </Button>
                <Button x:Name="ptfDetailButton" ToolTip="{x:Static p:Resources.Detail}" Command="{Binding PTFDetailCommand}">
                    <Image Source="../Resources/details.png" Width="16" Height="16"/>
                </Button>
            </ToolBar>-->
            </StackPanel>
        </DockPanel>
    </telerikDocking:RadDocumentPane.Content>
</telerikDocking:RadDocumentPane>

[Miroslav Nedyalkov]

Hello Garry,

 This error seems very odd. It seems that there is another problem somewhere in your code as the example on the blog post does the same thing as you do (I ported it to WPF and updated the blog post).

 Could you please send us a sample project that reproduces the problem - this would be very helpful?

Best wishes,
Miroslav Nedyalkov
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.

[Garry]

Miroslav,
I found the root of my issue and you were correct it was something internal to my code. I am still not quite sure how to fix it, but I atleast found the module causing the issue and as long as I load it last then all my module troubles go away.

Thanks for your help with this!

[Miroslav Nedyalkov]

Hello Garry,

 I'm happy to hear that you found the source of the problem.

If you have further questions we will be happy to assist you with them.

Best wishes,
Miroslav Nedyalkov
the Telerik team

Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items.