评估Usercontrol继承

问题描述

大家好！

我有处理Wpf UserControls的方法.

问题在于某些用户控件实现了接口"MyInterface"
某些用户控件则没有.

我需要从具有该实现的用户控件中调用"MyInterface"方法，但是由于可能存在没有接口方法的用户控件，因此我无法盲目地转换用户控件，例如.像这样:

Hi all!

I have method which handles Wpf UserControls.

The problem is that some of usercontrols implement interface "MyInterface"
and some usercontrols does not.

I need to call "MyInterface" methods from usercontrols who has that implementation, but since there could be usercontrols without interface method i cannot convert usercontrol blindly eg. like this:

var temp = (userControl as MyInterface);
temp.MyInterfaceMethod();

希望你有主意:)

干杯！

Hope you got idea :)

Cheers!

推荐答案

if(userControl is MyInterface){
    var temp = (userControl as MyInterface);
    temp.MyInterfaceMethod();
}

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