Question

考虑如下的层次结构：

Parent Grid -> Detail Grid -> Detail of Detail Grid

其中每个包含其后的网格。现在，我想从Detail of Detail Grid中触发一个事件。我已按照以下方式设置我的处理程序和事件。

public static readonly RoutedEvent DetailofDetailVmClickedEvent =
   EventManager.RegisterRoutedEvent("DetailofDetailVmClicked", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(RepoBreakdownRecordControl));

public event RoutedEventHandler DetailofDetailVmClicked
{
   add { AddHandler(DetailofDetailVmClickedEvent, value); }
   remove { RemoveHandler(DetailofDetailVmClickedEvent, value); }
}

public void RaiseDetailofDetailVmClickedEvent()
{
   var args = new RoutedEventArgs(DetailofDetailVmClickedEvent);
   args.Source = MyDetailOfDetailGrid.GetFocusedRow() as DetailofDetailVm;
   RaiseEvent(args);
}

private void MyDetailOfDetailGrid_OnMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
   RaiseDetailofDetailVmClickedEvent();
}

我想在Parent Grid级别处理此问题。由于我无法直接挂钩到Detail of Detail Grid事件处理程序（Parent Grid，Detail Grid和Detail of Detail Grid都是他们自己的控件），我该如何实现这一点？

我很高兴地承认，我可能因为缺少咖啡而有了脑力，但这就是生活。

Answer 1

叹息。喝咖啡的时间。

我只需要将以下内容添加到Parent Grid的构造函数中。

public ParentGridControl()
{
    AddHandler(DetailOfDetailGridControl.DetailofDetailVmClicked, new RoutedEventHandler(DetailofDetailVmClicked_Handler));
}

private void DetailofDetailVmClicked_Handler(object sender, RoutedEventArgs routedEventArgs)
{
   // do things here
}

如何挂钩孙子控制的事件？

1 个答案: