C# 反射 无法给委托绑定方法？

Question

    class Program
    {
       static void Main(string[] args)
        {
            Sample11 s = new Sample11();
            Console.Read();
        }
    }    public class Sample11
    {
        public Sample11()
        {
            string path = @"D:\lassLibrary1Demo.dll";
            Assembly ass = Assembly.LoadFile(path);            Type tp = ass.GetType("lassLibrary1Demo.Sample1");
            object tmpobj = ass.CreateInstance("lassLibrary1Demo.Sample1");            EventInfo eInfo = tp.GetEvent("ReturnBoolEvent");
            Type handlerType = eInfo.EventHandlerType;            MethodInfo inf = typeof(Sample11).GetMethod("WriteEvent", BindingFlags.Public | BindingFlags.Instance);
            Delegate d0 = Delegate.CreateDelegate(handlerType, inf);//有问题，无法给委托绑定方法
            eInfo.AddEventHandler(tmpobj, d0);
            MethodInfo play0 = tp.GetMethod("Display");
            string str0 = (string)play0.Invoke(tmpobj, null);
            Console.WriteLine(str0);
        }        public bool WriteEvent(string s)
        {
            Console.WriteLine(s);
            return true;
        }
    }DLL中的代码namespace lassLibrary1Demo
{
    public class Sample1
    {
        public delegate bool ReturnBoolHandler(string info);
        public event ReturnBoolHandler ReturnBoolEvent;        /// <summary>
        /// 显示
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        public string Display()
        {
            if (ReturnBoolEvent != null)
                ReturnBoolEvent("触发了返回bool值的事件");
            return "无参数方法";
        }
    }
}

Answer 1

Display是个实例方法啊。inf还没有和实例关联呢。

Answer 2

 class Class1
    {
        public Class1()
        {
            string path = @"E:\Truner\lassLibrary1Demo\bin\Debug\lassLibrary1Demo.dll";
            Assembly ass = Assembly.LoadFile(path);            Type tp = ass.GetType("lassLibrary1Demo.Sample1");
            object tmpobj = ass.CreateInstance("lassLibrary1Demo.Sample1");            EventInfo eInfo = tp.GetEvent("ReturnBoolEvent");
            Type handlerType = eInfo.EventHandlerType;            MethodInfo inf = typeof(Sampled).GetMethod("WriteEvent", BindingFlags.Public | BindingFlags.Instance);            Sampled c = new Sampled();
            Delegate d0 = Delegate.CreateDelegate(handlerType,c, inf,false);
           
            eInfo.AddEventHandler(tmpobj, d0);
            MethodInfo play0 = tp.GetMethod("Display");
            string str0 = (string)play0.Invoke(tmpobj, null);
            Console.WriteLine(str0);
        }       
    }
    public class Sampled
    {
        public bool WriteEvent(string s)
        {
            Console.WriteLine(s);
            return true;
        }
    }

Answer 3

public class Pr_MainFrame
{                Assembly assembly = Assembly.Load(namescape1);
                Object ucObj = assembly.CreateInstance(class1);
                Type ucType = ucObj.GetType();
                EventInfo ucEvent = ucType.GetEvent("Load");//获取“Load”事件
                //绑定事件的新处理方法；
                ucEvent.AddEventHandler(ucObj, new EventHandler(UcObjLoad));
    public void UcObjLoad(object sender, System.EventArgs e)
    {
        progressBar.Visible = false;
        //MessageBox.Show("OK");
    }
}