Question

有没有办法从类静态方法设置按钮单击路由事件处理程序？

我有一个带有XAML按钮的UserControl项“SendButton”和两个参数：

public void processEvent(Event e) {
   save(e);
   if (e != "foo") {
      broadcast(e); 
   }  
}

然后在类

中使用静态方法

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
        }

这就是我想称之为：

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

谢谢

Answer 1

UserControl的构造函数应该以{{1}}为参数：

RoutedEventHandler

作为参数传递的处理程序方法必须具有正确的签名，并以public SendButton(string buttonText, RoutedEventHandler clickHandler) { InitializeComponent(); ButtonBlock.Content = buttonText; ButtonBlock.Click += clickHandler; }作为第二个参数：

RoutedEventArgs

然后像这样传递（没有括号）：

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

C＃WPF从类静态方法设置按钮单击事件处理程序

1 个答案: