c#MethodInfo转换成EventHandler失败

Question

反射获取出来的方法转成EventHandler

       private void Form1_Load(object sender, EventArgs e)
        { 
            //var intance = Activator.CreateInstance(typeof(Form1)) as Form1;  
            object target = this;   
            MethodInfo inf = typeof(TestClass).GetMethod("btnTest_Click", BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance);
            Delegate del = Delegate.CreateDelegate(typeof(EventHandler), target, inf);    
            EventHandler myMethod = del as EventHandler;
            button1.Click += myMethod; 
        }

    public class TestClass
    {
        public string GetValue(string value)
        {
            return value;
        }

        private void btnTest_Click(object sender, EventArgs e)
        {
            Button btn = sender as Button;
            Random r = new Random();
            btn.Text = r.Next(1, 15).ToString();
        }
    }

报错 “System.ArgumentException”类型的未经处理的异常在 mscorlib.dll 中发生

其他信息: 无法绑定到目标方法，因其签名或安全透明度与委托类型的签名或安全透明度不兼容。

Answer 1

myMethod 是个事件句柄，不是回调函数，你怎么能加到click里面去呢
inf才是函数啊
总之你这逻辑看起来怪怪的，总感觉哪里不对