WPF ListBox not updating with the ItemsSource

Question

I have what I believe should be simple two-way databinding in WPF setup, but the listbox (target) is not updating as the collection changes.

I\'m setting this ItemsS

Answer 1

i got stuck for more than hour and then simple logic solved this problem just set itemsource to clear list and then set source u need again

lstVariable_Selected.ItemsSource = new List