来自类静态方法的C# WPF设置按钮单击事件处理程序

Question

有没有办法从类静态方法中设置按钮单击路由的事件处理程序？

我有一个带有一个按钮和两个参数的UserControl项目"SendButton“：

public SendButton(string buttonText, string eventHandler)
        {
            InitializeComponent();
            ButtonBlock.Content = buttonText;

            // This is what I´ve tried
            ButtonBlock.Click += (Func<RoutedEventHandler>) typeof(RoutedEvents).GetMethod(eventHandler);

            // This is what I want to achieve:
            // ButtonBlock.Click += RoutedEvents.WhatIsYourName();
            // But it doesn´t work anyways, because of a missing arguments
        }

然后是类内的静态方法

public class RoutedEvents
    {
        public static void WhatIsYourName(object sender, TextChangedEventArgs e)
        {
            // 
        }
    }

我想这样称呼它：

new SendButton("Send", "WhatIsYourName");  

谢谢

Answer 1

用户控件的构造函数应以RoutedEventHandler作为参数：

public SendButton(string buttonText, RoutedEventHandler clickHandler)
{
    InitializeComponent();

    ButtonBlock.Content = buttonText;
    ButtonBlock.Click += clickHandler;
}

作为参数传递的处理程序方法必须具有正确的签名，并将RoutedEventArgs作为第二个参数：

public class RoutedEvents
{
    public static void WhatIsYourName(object sender, RoutedEventArgs e)
    {
        // 
    }
}

然后像这样传递它(不带括号)：

new SendButton("Send", RoutedEvents.WhatIsYourName);