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Error when loading a layout in Docking with IsPinned and FloatingDockable

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Docking

This is a migrated thread and some comments may be shown as answers.

Ulrich asked on 14 Aug 2012, 01:37 PM

Hello,

I get an error when I try to load a layout which is saved from the last application-session. In the samples-code below I have redruced the code.
If I swap <RadSplitContainer InitialPosition="FloatingDockable"> before <RadSplitContainer Dock="DockedLeft"> is works fine. But our layoutfiles are generated by RadDocking.SaveLayout.

Location: System.RuntimeMethodHandle._InvokeMethodFast

Stack Trace:

bei System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)

bei System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)

bei System.Delegate.DynamicInvokeImpl(Object[] args)

bei System.Windows.RoutedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)

bei System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)

bei System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)

bei System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)

bei System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)

bei MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

Inner Exception:

1. InnerException.Message:

System.InvalidOperationException: Element already has a logical parent. It must be detached from the old parent before it is attached to a new one.

bei MS.Internal.Controls.InnerItemCollectionView.AssertPristineModelChild(Object item)

bei MS.Internal.Controls.InnerItemCollectionView.Insert(Int32 index, Object item)

bei System.Windows.Controls.ItemCollection.Insert(Int32 insertIndex, Object insertItem)

bei Telerik.Windows.Controls.Docking.AutoHideArea.Add(RadPane pane, Boolean suppressAnimations)

bei Telerik.Windows.Controls.Docking.AutoHideArea.UnpinPane(RadPane pane, Boolean suppressAnimations)

bei Telerik.Windows.Controls.RadDocking.UnpinPane(RadPane radPane, AutoHideArea area, Boolean stopEvents)

bei Telerik.Windows.Controls.RadDocking.OnRadPanePinChange(Object sender, PinChangeEventArgs args)

Telerik WPF Version 2012.2.725.40

<Grid>

<Grid.RowDefinitions>

<RowDefinition Height="29" />

<RowDefinition Height="1*" />

</Grid.RowDefinitions>

<Button Width="94" Content="load Layout" Click="Button_Click" />

<telerikDocking:RadDocking x:Name="radDocking" Grid.Row="1" />

</Grid>

private void Button_Click(object sender, RoutedEventArgs e)

{

try

{

using (var fs = new FileStream("./Last_Layout.xml", FileMode.Open))

{

radDocking.LoadLayout(fs);

}

catch (System.Exception ex)

{

System.Console.WriteLine("Error while loading lastlayout " + ex.Message);

}

Last_Layout.xml

<?xml version="1.0" encoding="utf-8"?>

<RadDocking>

<DocumentHost>

<RadSplitContainer>

<Items>

<RadPaneGroup SelectedIndex="-1">

<Items />

</RadPaneGroup>

</Items>

</RadSplitContainer>

</DocumentHost>

<SplitContainers>

<RadSplitContainer Dock="DockedLeft" Width="240" RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True">

<Items>

<RadPaneGroup RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True" SelectedIndex="0">

<Items>

<RadPane SerializationTag="GKL.Module.PreisBildErhebung.ViewModule:BildExplorerView" IsPinned="False" IsDockable="False" AutoHideWidth="236" AutoHideHeight="994" />

</Items>

</RadPaneGroup>

</Items>

</RadSplitContainer>

<RadSplitContainer InitialPosition="FloatingDockable" FloatingWidth="1722" FloatingHeight="1200" FloatingX="2024" FloatingY="0" FloatingWindowState="Normal" IsInOpenWindow="True" RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True">

<Items>

</Items>

</RadSplitContainer>

</SplitContainers>

</RadDocking>

5 Answers, 1 is accepted

answered on 23 Aug 2012, 02:37 PM

Hello Konstantina,

unfortunately the issue is still there in last internal build (2012.2.823.40) and need to handle in

Application_DispatcherUnhandledException.

Last_Layout.xml

<?xml version="1.0" encoding="utf-8"?>

<RadDocking>

<DocumentHost>

<RadSplitContainer>

<Items>

<RadPaneGroup SelectedIndex="-1">

<Items />

</RadPaneGroup>

</Items>

</RadSplitContainer>

</DocumentHost>

<SplitContainers>

<RadSplitContainer Dock="DockedRight" Width="240" RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True">

<Items>

<RadPaneGroup RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True" SelectedIndex="-1">

<Items>

<RadPane SerializationTag="SerializationTag2" IsPinned="False" IsDockable="False" Header="RadPaneGroup3" AutoHideWidth="236" AutoHideHeight="273" />

</Items>

</RadPaneGroup>

</Items>

</RadSplitContainer>

<RadSplitContainer InitialPosition="FloatingDockable" FloatingWidth="220" FloatingHeight="300" FloatingX="769" FloatingY="286" FloatingWindowState="Normal" IsInOpenWindow="True" RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True">

<Items>

<RadPaneGroup RelativeWidth="100" RelativeHeight="100" IsAutoGenerated="True" SelectedIndex="0">

<Items>

<RadPane SerializationTag="SerializationTag1" IsPinned="True" IsDockable="True" />

</Items>

</RadPaneGroup>

</Items>

</RadSplitContainer>

</SplitContainers>

</RadDocking>