WPF 列表框绑定，自动 select 从视图 Model 中选择的项目

Question

I have a listbox and a modelview, which I used to bind listbox items from a obervable collection.

My requirement is that I need to set the selectedItem as well as selectedIndex from view model, so the selected item can be visible to the user.

Hope somebody have solution for me

Answer 1

Make a SelectedItem property in your view model after that you can write something like this

SelectedItem="{Binding SelectedItem,UpdateSourceTrigger=PropertyChanged}"

in your XAML.