在数据绑定中，当引发PropertyChanged事件时，如何找到哪个控件调用绑定到它的数据的“getter”？

[英]In databinding, how to find which control invoked the “getter” of a property data-bound to it, when the PropertyChanged event is raised?

本文翻译自 Sudeep 查看原文 2009/06/22 144 data-binding/ mvvm/ wpf/ silverlight

I am developing a Silverlight 3 application, in which I have a boolean property in my Model class (using MVVM approach) that's bound to "IsEnabled" target property of two buttons. I need to find out which button invoked this boolean property when I raise the PropertyChanged event (i.e. during databinding).

我正在开发一个Silverlight 3应用程序,其中我的Model类中有一个布尔属性(使用MVVM方法),它绑定到两个按钮的“IsEnabled”目标属性。当我引发PropertyChanged事件时(即在数据绑定期间),我需要找出哪个按钮调用了这个布尔属性。

Is there something in the callstack that I can look for to figure this out? Or is there some other way by which I can do this?

在callstack中有什么东西我可以找到来解决这个问题吗?或者还有其他方法可以做到这一点吗?

TIA... Sudeep

1 个解决方案

#1

You could check the call stack e.g.

您可以检查调用堆栈,例如

var st = new System.Diagnostics.StackTrace();
var callingtypeOfAMethod = st.GetFrame(1).GetMethod().DeclaringType;

i hope this gets you the idea. you can get the calling control type using this.

我希望这会让你有这个想法。您可以使用此方法获取调用控件类型。

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