传递方法并调用内部函数

Question

i have object var channel = new Chanel(); this object has several methods which i call inside function like this:

private bool GetMethodExecution()
{
   var channel = new Channel();
   channel.method1();
   channel.method2();
}

all methods of class Channel derives from interface IChannel . My question is how can i call method GetMethodExecution() and pass which method I want to execute and then execute it inside this function based on parameter passed.

What i need is to call GetMethodExectution(IChannle.method1) and then call it on object inside this function. Is this possible

Answer 1

private bool GetMethodExecution(Func<Channel, bool> channelExecutor)
{
   var channel = new Channel();
   return channelExecutor(channel);
}

Now you can pass method via lambda like:

GetMethodExecution(ch => ch.method1());

GetMethodExecution(ch => ch.method2());

Answer 2

Are you looking for something like this?

private bool GetMethodExecution(int method)
{
   switch (method)
   {
       case 1: return new Channel().method1();
       case 2: return new Channel().method2();
       default: throw new ArgumentOutOfRangeException("method");
   }
}

GetMethodExecution(1);
GetMethodExecution(2);

Answer 3

You can do it as following using Func Delegate :

private bool GetMethodExecution(Func<bool> Method)
{
    return Method()
}

public bool YourCallingMethod()
{
    var channel = new Channel();         
    return GetMethodExecution(channel.method1); // Or return GetMethodExecution(channel.method2);
}

Answer 4

If you want to pass method name as parameter and Invoke it inside your code block, you can use reflection as follows:

private bool GetMethodExecution(string methodName)
{
   var channel = new Channel();

   Type type = typeof(Channel);
   MethodInfo info = type.GetMethod(methodName);

   return (bool)info.Invoke(channel, null); // # Assuming the methods you call return bool
}