Silverlight 3: ListBox DataTemplate HorizontalAlignment

Question

I have a ListBox with it\'s ItemTemplate bound to a DataTemplate. My problem is I cannot get the elements in the template to stretch to the full width of the ListBox.

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Answer 1

My ListBoxItem contained a CheckBox and the above solutions did not work for me (most likely due to the nature of a CheckBox, not those solutions) I was able to coerce this functionality by not binding to the "Content" property of the checkbox, but explicitely defining the XAML inline:

The margin is needed because the TextBox text did not align with the CheckBox's checkmark. The MinWidth was also necessary.