Occurs when the SelectedValue property changes.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The following code example is a complete application that shows how you can use DataSource, DisplayMember, ValueMember, and SelectedValue members of the ListControl class as implemented by the ListBox class. The example loads an ArrayList and the list box. The example also uses the event to fill in a text box when the user selects an item in the list box. The text box is filled with the data associated with the selected item.