WinRTXAMLToolkit Treeview Crash on Windows 10

Question

I have recently upgraded my OS to Windows 10 from Windows 8.1. I'm using VS 2013 With update 4. My app using the Treeview control from XAMLToolkit, and it works perfectly on Windows 8.1 environment. But under Windows 10, it gives me the following error. Please help.

This is the XAMLToolkit version I've used: nuget.org/packages/winrtxamltoolkit.windows

Exception message:

System.Runtime.InteropServices.COMException: Error HRESULT E_FAIL has been returned from a call to a COM component. at Windows.UI.Xaml.Controls.ItemsControl.get_ItemTemplate() at WinRTXamlToolkit.Controls.HeaderedItemsControl.PrepareHeaderedItemsControlContainer(HeaderedItemsControl control, Object item, ItemsControl parentItemsControl, Style parentItemContainerStyle) at WinRTXamlToolkit.Controls.HeaderedItemsControl.PrepareHeaderedItemsControlContainerForItemOverride(DependencyObject element, O

Stacktrace:

at Windows.UI.Xaml.Controls.ItemsControl.get_ItemTemplate() at WinRTXamlToolkit.Controls.HeaderedItemsControl.PrepareHeaderedItemsControlContainer(HeaderedItemsControl control, Object item, ItemsControl parentItemsControl, Style parentItemContainerStyle) at WinRTXamlToolkit.Controls.HeaderedItemsControl.PrepareHeaderedItemsControlContainerForItemOverride(DependencyObject element, Object item, ItemsControl parent, Style parentItemContainerStyle) at WinRTXamlToolkit.Controls.TreeView.PrepareContainerForItemOverride(DependencyObject element, Object item) at Windows.UI.Xaml.FrameworkElement.MeasureOverride(Size availableSize)

Inner exception is null

Answer 1

I encountered same issue, what i did is just removed the itemtemplate inside treeview control and added separately in page resource and i refered the itemtemplate to my treeview control. it solved my issue.

<Page.Resources>

<DataTemplate x:Name="TreeViewItemTemplate">
<Grid>
<TextBlock Text="{Binding Name}" />
</Grid>

<XCDATA:DataTemplateExtensions.Hierarchy>
<XCDATA:HierarchicalDataTemplate ItemsSource="{Binding Items}" />
</XCDATA:DataTemplateExtensions.Hierarchy>

</DataTemplate>

</Page.Resources>

<XC:TreeView 
    ItemTemplate="{StaticResource TreeViewItemTemplate}"
    ItemsSource="{Binding ObjShopItems}">      
</XC:TreeView>