WPF: How to bind a command to the ListBoxItem using MVVM?

Question

I have just started learning MVVM. I\'ve made the application from scratch by following this MVVM tutorial (I highly recommend it to all MVVM beginners out there). Basically

Answer 1

This is made tricky because of the DoubleClick event. There are a few ways to do this:

1. Handle the double-click event in code behind, and then manually invoke a command/method on your ViewModel
2. Use an attached behavior to route the DoubleClick event to your Command
3. Use a Blend Behavior to map the DoubleClick event to your command

2 and 3 might be more pure, but frankly, 1 is easier, less complex, and not the worst thing in the world. For a one-off case, I'd probably use approach #1.

Now, if you changed your requirements to use, say, a hyperlink on each item, it would be easier. Start out by naming the root element in your XAML - e.g., for a Window:

Now, in the DataTemplate for your ListBox items, use something like this:

The ElementName binding lets you resolve the OpenEntryCmd from the context of your ViewModel, rather than the specific data item.