How do I resolve the error: value of type cannot be added to a collection or dictionary of type 'UIElementCollection'

ChrisSergent — Fri, 25 Sep 2015 16:12:27 GMT

I have a xaml file with the following code and I receive an error for my local:TextEditorToolbar:

Window x:Class="TextEditor.MainWindow"

xmlns:local="clr-namespace:TextEditor"

Title="Text Editor" Height="600" Width="800">

<Menu x:Name="menu"

DockPanel.Dock="Top"/>

<local:TextEditorToolbar x:Name="toolbar"/>

</StackPanel>

</StatusBar>

<RichTextBox x:Name="body"

SpellCheck.IsEnabled="True"

AcceptsTab="True"

AcceptsReturn="True"

BorderThickness="0 2 0 0" />

</DockPanel>

Window>

It references a user control name TextEditorToolbar.xaml. Why would I receive this error and how do I fix it.

topic How do I resolve the error: value of type cannot be added to a collection or dictionary of type 'UIElementCollection' in ArcGIS Runtime SDK for WPF (Retired) Questions