Style, PaneSource and Save/Load layout

[Gladky]

Hello.

Here is code of my window:

<telerik:RadDocking x:Name="radDocking" PanesSource="{Binding Panes}">
        <telerik:RadDocking.Resources>
            <Style x:Key="RadPaneCustomStyle" TargetType="{x:Type telerik:RadPane}" BasedOn="{StaticResource RadPaneStyle}">
                <Setter Property="Header" Value="{Binding Header}" />
                <Setter Property="ToolTip" Value="{Binding ToolTip}" />
                <Setter Property="IsHidden" Value="{Binding IsHidden, Mode=TwoWay}" />
                <Setter Property="IsActive" Value="{Binding IsActive, Mode=TwoWay}" />
                <Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" />
            </Style>
            <Style TargetType="{x:Type telerik:RadPane}" BasedOn="{StaticResource RadPaneCustomStyle}">
                <Setter Property="CanDockInDocumentHost" Value="True" />
            </Style>
            <Style TargetType="{x:Type telerik:RadDocumentPane}" BasedOn="{StaticResource RadPaneCustomStyle}">
                <Setter Property="CanDockInDocumentHost" Value="True" />
            </Style>
        </telerik:RadDocking.Resources>

        <telerik:RadDocking.DockingPanesFactory>
            <docking:CustomDockingPanesFactory />
        </telerik:RadDocking.DockingPanesFactory>
        <telerik:RadDocking.CurrentSaveLoadLayoutHelper>
            <docking:CustomSaveLoadLayoutHelper />
        </telerik:RadDocking.CurrentSaveLoadLayoutHelper>

        <telerik:RadSplitContainer InitialPosition="DockedLeft">
            <telerik:RadPaneGroup x:Name="leftGroup" telerik:RadDocking.SerializationTag="leftGroup" />
        </telerik:RadSplitContainer>

        <telerik:RadSplitContainer InitialPosition="DockedRight">
            <telerik:RadPaneGroup x:Name="rightGroup" telerik:RadDocking.SerializationTag="rightGroup" />
        </telerik:RadSplitContainer>

        <telerik:RadSplitContainer InitialPosition="DockedBottom">
            <telerik:RadPaneGroup x:Name="bottomGroup" telerik:RadDocking.SerializationTag="bottomGroup" />
        </telerik:RadSplitContainer>
    </telerik:RadDocking>

public void SaveLayout()
{
    var docking = DockingManager as RadDocking;

    using (var stream = File.Open(GetLayoutFilePath(State), FileMode.Create, FileAccess.Write, FileShare.ReadWrite))
    {
        docking.SaveLayout(stream);
    }
}

public void LoadLayout(WorkspaceState state)
{
    var docking = DockingManager as RadDocking;

    using (var stream = File.Open(GetLayoutFilePath(State), FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
    {
        docking.LoadLayout(stream);
    }
}

So, the problem is:
When i create some pads and save/load layout and dont hide or pin it it's ok. But when i pin it loose the style, so header become empty.
When i am hiding it and restoring, there is exseption:

System.InvalidOperationException was unhandled
  HResult=-2146233079
  Message=Cannot modify the logical children for this node at this time because a tree walk is in progress.
  Source=PresentationFramework
  StackTrace:
       at System.Windows.FrameworkElement.RemoveLogicalChild(Object child)
       at MS.Internal.Controls.InnerItemCollectionView.ClearModelParent(Object item)
       at MS.Internal.Controls.InnerItemCollectionView._RemoveAt(Int32 index, Int32 indexR, Object item)
       at MS.Internal.Controls.InnerItemCollectionView.Remove(Object item)
       at System.Windows.Controls.ItemCollection.Remove(Object removeItem)
       at Telerik.Windows.Controls.RadPaneGroup.CloseSinglePane(RadPane pane) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadPaneGroup.cs:line 1522
       at Telerik.Windows.Controls.RadPaneGroup.ClosePane(RadPane pane) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadPaneGroup.cs:line 653
       at Telerik.Windows.Controls.RadDocking.HidePane(RadPane pane) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 430
       at Telerik.Windows.Controls.RadPane.Close() in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadPane.cs:line 1461
       at Telerik.Windows.Controls.RadPane.OnIsHiddenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadPane.cs:line 1226
       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.StyleHelper.ApplyStyleOrTemplateValue(FrameworkObject fo, DependencyProperty dp)
       at System.Windows.StyleHelper.InvalidateContainerDependents(DependencyObject container, FrugalStructList`1& exclusionContainerDependents, FrugalStructList`1& oldContainerDependents, FrugalStructList`1& newContainerDependents)
       at System.Windows.StyleHelper.DoStyleInvalidations(FrameworkElement fe, FrameworkContentElement fce, Style oldStyle, Style newStyle)
       at System.Windows.StyleHelper.UpdateStyleCache(FrameworkElement fe, FrameworkContentElement fce, Style oldStyle, Style newStyle, Style& styleCache)
       at System.Windows.FrameworkElement.OnStyleChanged(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.InvalidateProperty(DependencyProperty dp, Boolean preserveCurrentValue)
       at System.Windows.FrameworkElement.UpdateStyleProperty()
       at System.Windows.TreeWalkHelper.InvalidateStyleAndReferences(DependencyObject d, ResourcesChangeInfo info, Boolean containsTypeOfKey)
       at System.Windows.TreeWalkHelper.OnResourcesChanged(DependencyObject d, ResourcesChangeInfo info, Boolean raiseResourceChangedEvent)
       at System.Windows.FrameworkElement.OnAncestorChangedInternal(TreeChangeInfo parentTreeState)
       at System.Windows.TreeWalkHelper.OnAncestorChanged(DependencyObject d, TreeChangeInfo info, Boolean visitedViaVisualTree)
       at System.Windows.DescendentsWalker`1._VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
       at MS.Internal.PrePostDescendentsWalker`1._VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
       at System.Windows.DescendentsWalker`1.VisitNode(FrameworkElement fe, Boolean visitedViaVisualTree)
       at System.Windows.DescendentsWalker`1.VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
       at System.Windows.DescendentsWalker`1.WalkLogicalChildren(FrameworkElement feParent, FrameworkContentElement fceParent, IEnumerator logicalChildren)
       at System.Windows.DescendentsWalker`1.WalkFrameworkElementLogicalThenVisualChildren(FrameworkElement feParent, Boolean hasLogicalChildren)
       at System.Windows.DescendentsWalker`1.IterateChildren(DependencyObject d)
       at System.Windows.DescendentsWalker`1._VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
       at MS.Internal.PrePostDescendentsWalker`1._VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
       at System.Windows.DescendentsWalker`1.VisitNode(FrameworkElement fe, Boolean visitedViaVisualTree)
       at System.Windows.DescendentsWalker`1.VisitNode(DependencyObject d, Boolean visitedViaVisualTree)
       at System.Windows.DescendentsWalker`1.WalkLogicalChildren(FrameworkElement feParent, FrameworkContentElement fceParent, IEnumerator logicalChildren)
       at System.Windows.DescendentsWalker`1.WalkFrameworkElementLogicalThenVisualChildren(FrameworkElement feParent, Boolean hasLogicalChildren)
       at System.Windows.DescendentsWalker`1.IterateChildren(DependencyObject d)
       at System.Windows.DescendentsWalker`1.StartWalk(DependencyObject startNode, Boolean skipStartNode)
       at MS.Internal.PrePostDescendentsWalker`1.StartWalk(DependencyObject startNode, Boolean skipStartNode)
       at System.Windows.TreeWalkHelper.InvalidateOnTreeChange(FrameworkElement fe, FrameworkContentElement fce, DependencyObject parent, Boolean isAddOperation)
       at System.Windows.FrameworkElement.ChangeLogicalParent(DependencyObject newParent)
       at System.Windows.FrameworkElement.AddLogicalChild(Object child)
       at System.Windows.LogicalTreeHelper.AddLogicalChild(FrameworkElement parentFE, FrameworkContentElement parentFCE, Object child)
       at MS.Internal.Controls.InnerItemCollectionView.SetModelParent(Object item)
       at MS.Internal.Controls.InnerItemCollectionView.Add(Object item)
       at System.Windows.Controls.ItemCollection.Add(Object newItem)
       at Telerik.Windows.Controls.RadDocking.AddSplitContainer(RadSplitContainer radSplitContainer) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.cs:line 309
       at Telerik.Windows.Controls.Docking.DockingLayoutFactory.LoadDocking(XmlReader reader) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\DockingLayoutFactory.cs:line 236
       at Telerik.Windows.Controls.RadDocking.LoadLayout(Stream source, Boolean raiseEventsIfNoSerializationTag) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.Layout.cs:line 77
       at Telerik.Windows.Controls.RadDocking.LoadLayout(Stream source) in c:\TB\105\WPF_Scrum\Release_WPF\Sources\Development\Controls\Docking\Docking\Docking\RadDocking.Layout.cs:line 58
       at GameEd.IDE.Services.WorkspaceService.LoadLayout(WorkspaceState state) in d:\TFS\GameEd-Telerik\IDE\GameEd.IDE\Services\WorkspaceService.Layout.cs:line 107
       at GameEd.IDE.Services.WorkspaceService.LoadLayout() in d:\TFS\GameEd-Telerik\IDE\GameEd.IDE\Services\WorkspaceService.Layout.cs:line 96
       at Catel.MVVM.Command`2.Execute(TExecuteParameter parameter, Boolean ignoreCanExecuteCheck)
       at Catel.MVVM.Command`2.Execute(TExecuteParameter parameter)
       at Catel.MVVM.Command`2.Execute(Object parameter)
       at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
       at System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
       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.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.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.LegacyInvokeImpl(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()
       at GameEd.App.Main() in d:\TFS\GameEd-Telerik\GameEd\obj\Debug\obj\Debug\decoratedxaml\App.g.cs:line 0
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       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()
  InnerException:

If i remove IsHidden binding it's work perfectly.

[Gladky]

Solver.

Moved Stylex to App resource dictionary.

[Konstantina]

Hello Gladky,

We are glad that the issue is resolved.

Please feel free to write to us again if you have any other questions regarding our controls.

Regards,
Konstantina
Telerik

[Michele]

Gladky excuse me , can you please help me with save layout and catel?

Thanks