How to pass delegate as a parameter

[Chiman1]

Hi, I am new to C# , Please suggest the approach. I have written below code . public class A { public B obj = new B(); public delegate int delegateCalculate(int i, int j); delegateCalculate dc ; public int Add(int Num1 , int Num2) { return (Num1 + Num2); } public int Sub(int Num1, int Num2) { return (Num1 - Num2); } public void Display() { dc = this.Sub; obj.Result(dc); //error } } public class B { public int Num1 = 10 ; public int Num2 = 20 ; public delegate int Calc (int i,int j); public int Result(Calc dc) { int ii = dc(Num1, Num2); return ii; } } The above code gives error for obj.Result(dc); call. Please suggest how to call Result() of class B in class A.

[Abhinav S]

One way to do this would be using the Action tag. Have a look here[^].

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[Lost User]

Delegates are not equivalent when they just share the same signature, you could do this if you declare only one delegate type and use that in both places. Delegate declarations do not have to be inside a class.