Handling TreeViews context menu with WPF and MVVM - wpf

Question

I have a application that shows a TreeView. The TreeView has a context menu. I use Caliburn.Micro as MVVM framework.
The line cal:Message.Attach="[Event Click]=[Action Remove()]" is required so that something happens if the ContextMenu-Item is clicked. This line makes that Caliburn.Micro searches in the ViewModel of the TreeItem for a method with the name Remove.
But I want that the click on the ContextMenu Item will call the method Remove of the ViewModel of the screen. How to do that?
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}">
<TextBlock Text="{Binding Name}">
<TextBlock.ContextMenu>
<ContextMenu>
<MenuItem cal:Message.Attach="[Event Click]=[Action Remove()]" Name="Remove" Header="Remove item" />
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>

Answer 1

Try this:
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}">
<TextBlock Text="{Binding Name}">
<TextBlock.ContextMenu>
<ContextMenu>
<MenuItem Tag="{Binding RelativeSource={RelativeSource AncestorType=TreeView}}"
cal:Action.TargetWithoutContext="{Binding Path=PlacementTarget.Tag.DataContext, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=ContextMenu}}"
cal:Message.Attach="[Event Click]=[Action RemoveResource()]" Name="Remove" Header="Remove item" />
</ContextMenu>
</TextBlock.ContextMenu>
</TextBlock>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
Please refer to my answer here for more information:
Caliburn Micro Action inside ItemContainerStyle - No target found for method

Answer 2

Somebody had the similar problem “Bubbling” events from bound viewmodel goes to parent.
And according to author himself Bind a Command to a Button inside a ListView with Caliburn.Micro.
So just call it by convention or like this:
<i:Interaction.Triggers>
<i:EventTrigger EventName="Click">
<cal:ActionMessage MethodName="{Binding Name}" />
</i:EventTrigger>
</i:Interaction.Triggers>