What event handler to use for ComboBox Item Selected (Selected Item not necessarily changed)

Question

Goal: issue an event when items in a combobox drop down list is selected.

Problem: Using \"SelectionChanged\", however, if the user

Answer 1

Every ComboBoxItem instance has PreviewMouseDown event. If you will subscribe your custom handler on this event on every ComboBoxItem you will have opportunity to handle every click on the dropdown list.

// Subscribe on ComboBoxItem-s events.
comboBox.Items.Cast().ToList().ForEach(i => i.PreviewMouseDown += ComboBoxItem_PreviewMouseDown);

private void ComboBoxItem_PreviewMouseDown(object sender, MouseButtonEventArgs e)
{
     // your handler logic...         
}