I'm pretty new to Xaml and need some advise.

A TreeView should be bound to a hierarchical object structure. The TreeView should have a context menu, which is specific for each object type.

I've tried the following:

<TreeView>
  <TreeView.Resources>
    <DataTemplate x:Key="RoomTemplate">
      <TreeViewItem Header="{Binding Name}">
        <TreeViewItem.ContextMenu>
          <ContextMenu>
            <MenuItem Header="Open" />
            <MenuItem Header="Remove" />
          </ContextMenu>
        </TreeViewItem.ContextMenu>
      </TreeViewItem>
    </DataTemplate>
  </TreeView.Resources>

  <TreeViewItem Header="{Binding Name}" Name="tviRoot" IsExpanded="True" >

  <TreeViewItem Header="Rooms"  
                ItemsSource="{Binding Rooms}"
                ItemTemplate="{StaticResource RoomTemplate}">
    <TreeViewItem.ContextMenu>
      <ContextMenu>
        <MenuItem Header="Add room"></MenuItem>
      </ContextMenu>
    </TreeViewItem.ContextMenu>
  </TreeViewItem>
</TreeViewItem>

But with this markup the behavior is as intended, but the child items (the rooms) are indented too much.

Anyway all the bining samples I could find use TextBlock instead of TreeViewItem in the DataTemplate, but wonder how to integrate the ContextMenu there.