Func and Anynonymos method using Func

                                                        Func and Anynonymos method using Func                         

1.       An Func is a type of delegate just like action except func returns value and action not.

2.      Encapsulates methods that has a single/multiple parameter and return a value.

3.    Internally it is deligate and defined as below

Here is the actual formal definition of the Func<T, TResult>, they are defined separately

public delegate TResult Func<in T, out TResult>( T arg)

T=Input Parameter

TResult =Output Parameter

4.      It may take 0 parameter to 16 parameters as input and 1 parameter as outpout

5.       You can use the lambda expression in the action as shown below exapmle

6.       You use Anynonymos method using Func as below

Definition	Func<string, string> func1 = (x) => string.Format("string = {0}", x);
In Arguments	String
Out Arguments	String
Call	func1("Ajay")
Returns / o/p	String = Ajay
Internally Defined	public delegate TResult Func<in T, out TResult>(T arg);
Definition	Func<string,int , string> func1 = (x,y) => string.Format("string = {0} & int = ", x,y);
In Arguments	String, int
Out Arguments	String
Call	Console.WriteLine(func1("Ajay",1 ));
Internally Defined	public delegate void Action<in T1, in T2>(T1 arg1, T2 arg2);