如何从 DataTemplate 获取 Control 到 ControlTemplate ? [英] How to get Control from DataTemplate to ControlTemplate ?

问题描述

<ListBox>
   <ListBox.ItemTemplate>
      <DataTemplate>
        <Button Content="Click Me"
                Click="OnClick"
                Name="btn"/>
      </DataTemplate>
   </ListBox.ItemTemplate></ListBox>

我想在单击按钮时获取相关的 ListBoxItem.如何执行此操作?

I want to get relevant ListBoxItem when I Click the Button.how to do this ?

private void OnClick(object sender, RoutedEventArgs e){// How to get ListBoxItem?}

推荐答案

您可以使用 Linq-to-VisualTree 如下:

Button btn = sender as Button;
ListBoxItem item = btn.Ancestors<ListBoxItem>().Cast<ListBoxItem>().First();

这将查找所需类型的按钮的第一个祖先.

This finds the first ancestor of the button that is of the desired type.

作为替代方案，如果您使用数据绑定，您可以检查 Button 继承的 DataContext 以查看它绑定到哪个模型项.那将是我的首选.

As an alternative, if you are using databinding, you could inspect the inherited DataContext of the Button to see which model item it is bound to. That would be my first preference.

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