在Button事件处理程序方法Xamarin Forms中获取控件名称 [英] Get control name in Button event handler method Xamarin Forms

问题描述

我的Xamarin Forms应用程序中有20个按钮.所有按钮共享相同的click事件方法.我想做的是使用switch语句检查按钮名称，但是我很难找到触发事件的控件名称.

I have 20 buttons in my Xamarin Forms app . All of the buttons share the same click event method. What I want to do is use switch statement to check the button name but I am having difficulty finding the controls name that fired the event .

请查看代码:

private  void btnCollection_Clicked(object sender, EventArgs args)
    {
        var btn = (Button)sender;

        switch (btn.FindByName) // I want to get the name of the control 
        {

            case "btn1":
                break;

                case "btn2":
                break;
        }
    }

如何获取按钮的名称?

推荐答案

您不能访问xaml元素的x:Name属性，因为这只是编译器命名变量的提示.

You cannot access the x:Name property of a xaml element as this is just a hint for the compiler to name the variable.

但是，您可以做的是设置按钮的ClassId，以便您可以在处理程序中检索它.像这样: 您的xaml:

What you can do however is to set the ClassId of your button so that you can retrieve it in the handler. Like this: Your xaml :

<Button ClassId="sdsd"
              Clicked="Button_OnClicked"/>

您的xaml.cs

private void LoginButton_OnClicked(object sender, EventArgs e)
        {
            var button = (Button) sender;
            var classId = button.ClassId;
        }

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