WPF MVVM模式开发中列表控件内的按钮触发不了command事件

处理方法：

<Button Content="删除" Command="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType=ListView}, Path=DataContext.DeleteCommand}" CommandParameter="{Binding ID,Mode=TwoWay}"/><Button Content="删除" Command="{Binding