Hi All,

I am busy creating my first MVVM application in WPF.

Basically the problem I am having is that I have a TreeView (System.Windows.Controls.TreeView) which I have placed on my WPF Window, I have decide that I will bind to a ReadOnlyCollection of CommandViewModel items, and these items consist of a DisplayString, Tag and a RelayCommand.

Now in the XAML, I have my TreeView and I have successfully bound my ReadOnlyCollection to this. I can view this and everything looks fine in the UI.

The issue now is that I need to bind the RelayCommand to the Command of the TreeViewItem, however from what I can see the TreeViewItem doesn't have a Command. Does this force me to do it in the IsSelected property or even in the Code behind TreeView_SelectedItemChanged method or is there a way to do this magically in WPF?

This is the code I have:

<TreeView BorderBrush="{x:Null}" 
      HorizontalAlignment="Stretch" 
      VerticalAlignment="Stretch">
<TreeView.Items>
    <TreeViewItem
        Header="New Commands"
        ItemsSource="{Binding Commands}"
        DisplayMemberPath="DisplayName"
        IsExpanded="True">
    </TreeViewItem>
</TreeView.Items>

and ideally I would love to just go:

<TreeView BorderBrush="{x:Null}" 
      HorizontalAlignment="Stretch" 
      VerticalAlignment="Stretch">
<TreeView.Items>
    <TreeViewItem
        Header="New Trade"
        ItemsSource="{Binding Commands}"
        DisplayMemberPath="DisplayName"
        IsExpanded="True"
        Command="{Binding Path=Command}">
    </TreeViewItem>
</TreeView.Items>

Does someone have a solution that allows me to use the RelayCommand infrastructure I have.

Thanks guys, much appreciated!

Richard