如何修复“编译器错误 - 无法从方法组转换为 System.Delegate"? [英] How do I fix 'compiler error - cannot convert from method group to System.Delegate'?

问题描述

 public MainWindow()
 {
    CommandManager.AddExecutedHandler(this, ExecuteHandler);
 }

 void ExecuteHandler(object sender, ExecutedRoutedEventArgs e)
 {
 }

错误 1 ​​参数 2:无法从方法组"转换为System.Delegate"

Error 1 Argument 2: cannot convert from 'method group' to 'System.Delegate'

推荐答案

我猜有多个不同签名的 ExecuteHandler.只需将您的处理程序转换为您想要的版本:

I guess there are multiple ExecuteHandler with different signatures. Just cast your handler to the version you want to have:

CommandManager.AddExecuteHandler(this, (Action<object,ExecutedRoutedEventArgs>)ExecuteHandler);

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