感觉这玩意之前一直没用过，可能在容器里用到的比较多吧，记录一下。

第一种代码法：

      Style itemContainerStyle = new Style(typeof(ListBoxItem));itemContainerStyle.Setters.Add(new Setter(ListBoxItem.AllowDropProperty, true));itemContainerStyle.Setters.Add(new EventSetter(ListBoxItem.PreviewMouseLeftButtonDownEvent, new MouseButtonEventHandler(s_PreviewMouseLeftButtonDown)));itemContainerStyle.Setters.Add(new EventSetter(ListBoxItem.DropEvent, new DragEventHandler(listbox1_Drop)));listbox1.ItemContainerStyle = itemContainerStyle;

第二种xaml法：

<ListBox><ListBox.Resources><Style TargetType="ListBoxItem"><Setter Property="AllowDrop" Value="True" /><EventSetter Event="PreviewMouseLeftButtonDown" Handler="s_PreviewMouseLeftButtonDown" /><EventSetter Event="Drop" Handler="listbox1_Drop" /></Style></ListBox.Resources>
</ListBox>

如果使用MVVM框架可以使用Binding:

<EventSetter Event="PreviewMouseLeftButtonDown" Handler="{Binding s_PreviewMouseLeftButtonDown}" /><EventSetter Event="Drop" Handler="{Binding listbox1_Drop}" />