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POWPF: Exception if i add a eventhandler to a MenuItem (in a ListBox)
 

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  1. POWPF: Exception if i add a eventhandler to a MenuItem (in a ListBox)
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    <p>i wanted a contextmenu for my ListBoxItems. So i created this:</p> <pre><code>&lt;ListBox Name="listBoxName"&gt; &lt;ListBox.ItemTemplate&gt; &lt;DataTemplate&gt; &lt;TextBlock Text="{Binding UserName}" /&gt; &lt;/DataTemplate&gt; &lt;/ListBox.ItemTemplate&gt; &lt;ListBox.ItemContainerStyle&gt; &lt;Style TargetType="ListBoxItem"&gt; &lt;Setter Property="ContextMenu"&gt; &lt;Setter.Value&gt; &lt;ContextMenu&gt; &lt;MenuItem Header="View" Name="MenuItemView" /&gt; &lt;/ContextMenu&gt; &lt;/Setter.Value&gt; &lt;/Setter&gt; &lt;/Style&gt; &lt;/ListBox.ItemContainerStyle&gt; &lt;/ListBox&gt; </code></pre> <p>This works great. I have the contextmenu for all items, but if i want to add a click-eventhandler to the menuitem, like this:</p> <pre><code>&lt;MenuItem Header="View" Name="MenuItemView" Click="MenuItemView_Click" /&gt; </code></pre> <p>I get a XamlParseException when the window is created.</p> <p>InnerException: The Object System.Windows.Controls.MenuItem cannot be converted to type System.Windows.Controls.Grid</p> <p>It throws only the exception if i add a event-handler. The event-method is empty.</p> <p>Edit: Stacktrace of the InnerException:</p> <blockquote> <p>at Chat_Client.ChatWindow.System.Windows.Markup.IComponentConnector.Connect(Int32 connectionId, Object target) in c:\XXX\Chat_Client\ChatWindow.xaml:Row 19.</p> <p>at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetConnectionId(Object root, Int32 connectionId, Object instance)</p> </blockquote> <p>Edit2: Now i have to get the object I clicked with the contextmenu. First i tried this:</p> <pre><code>//MenuItem s = sender as MenuItem; //ContextMenu cm = s.Parent as ContextMenu; //Popup pu = cm.Parent as Popup; //object o = pu.Parent; </code></pre> <p>But the Popup's parent is null. Then i simply get the selectedItem from the ListBox. This works, but is there no way to get the ListBoxRow of the clicked Contextmenu?</p>
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    2. COat Chat_Client.ChatWindow.System.Windows.Markup.IComponentConnector.Connect(Int32 connectionId, Object target) in c:\XXX\Chat_Client\ChatWindow.xaml:Row 19. at MS.Internal.Xaml.Runtime.ClrObjectRuntime.SetConnectionId(Object root, Int32 connectionId, Object instance)
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