思考：調用方法，傳遞一個委託作爲參數

Question

我在Host類，看起來像這樣實現的接口：

void Method1(Action<Args1> action1, Action<Args1> action2); 

，然後我已被傳遞爲action1和action2以下方法。

private void Action1(Args1 obj) 
{ 
//... 
} 

private void Action2(Args1 obj) 
{ 
//... 
} 

使用反射，我怎麼跟調用它，並通過方法Action1和Action2？

Answer 1

//here you pass the methods Action1 and Action2 as parameters 
//to the delegates - if you need to construct these by reflection 
//then you need to reflect the methods and use the 
//Delegate.CreateDelegate method. 
var param1 = new Action<Args1>(Action1); 
var param2 = new Action<Args1>(Action2); 
//instance of Host on which to execute 
var hostInstance = new Host(); 
var method = typeof(Host).GetMethod("Method1", 
    BindingFlags.Public | BindingFlags.Instance); 

method.Invoke(hostInstance, new object[] { param1, param2 });