问题描述
我正在尝试使用 OriginalSource 属性来确定生成 PointerReleased 事件的特定 UIElement.根据文档 RoutedEventArgs.OriginalSource 返回发起事件的对象，但我不知道如何使用它来识别 UIElement.我可以使用 OrginalSource.ToString() 来识别 UIElement 的类型，而不是特定的实例.我的方法可能完全错误，如果是这样，那也值得了解.谢谢.
I'm trying to use the OriginalSource property to determine the specific UIElement that generated a PointerReleased event. According to the documentation RoutedEventArgs.OriginalSource returns the object that originated the event but I don't know how to use that to identify the UIElement. I can use OrginalSource.ToString() to identify the type of UIElement but not a specific instance. My approach may be entirely wrong, if so, that would be worth knowing too. Thanks.
推荐答案
如果您有一组潜在的候选人要交叉检查，您可以简单地使用 == 或使用对象的 .Equals() 方法.
If you have set of potential candidates to cross check against, you can simply do the equality check between original source and each potential candidate using == or using .Equals() method of Object.
其次，如果您希望原始来源表明其身份，您可以做的是在 XAML 中的控件实例上设置 x:Name，然后在代码中您可以访问 Name 属性以验证其身份.
Secondly, in case you want original source to tell it's identity, what you can do is set x:Name on control instance in XAML and then in code you can access Name property to validate it's identity.
XAML:
<TextBlock x:Name="myTextBlock"/>
代码:
string sender = (e.OriginalSource as FrameworkElement).Name;
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