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Editorial Team
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Asked: 2026-05-18T00:29:11+00:00

I’ve data bound a ListBox in my MVVM Light Windows Phone 7 app, and

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I’ve data bound a ListBox in my MVVM Light Windows Phone 7 app, and want to invoke a command in my view model when the user clicks on an item in my ListBox.

I’m doing this using the EventToCommand behaviour and everything is good, except that I can’t pass the data item associated with the list element that was clicked, if I use the MouseLeftButtonDown event …

If I use the SelectionChanged event, then I can bind the behaviour’s CommandParameter to the ListBox’s SelectedItem, but I really want to use the MouseLeftButtonDown event.

Any ideas? I’d prefer not to pollute my View Model by setting the “PassEventArgsToCommand” option, and in any event I’m not sure I can get the selected data item from the MouseButtonEventArgs.

Right now I’m heading towards setting up an event handler in the code-behind, and invoking the ViewModel from there, using the “sender” to get at the data item.

Thanks,

Damian
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1 Answer

  1. Editorial Team

    It looks like the question doesn’t actually make sense – the MouseLeftButtonDown event being fired on the ListBox is not associated with a particular item in the ListBox.

    Instead, I’m looking to hook up to this event on the ItemTemplate I’ve associated with the ListBox.

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