Question : Implementing optional parameters in a function - C#

Hi,

I have the following strings A, B, C, D, E that i want to pass as parameters in a function like,

public class X
{
      public void func1(string A) {}
      public void func1(string A, string B) {}
      public void func1(string A, string B, string C) {}
      public void func1(string A, string B, string C, string D) {}

      public void func1(string A, string B, string C, string D, string E) {}
}

So all these functions become overloading functions.

Is there any way to write up all these functions into a single function? Like is there any concept of optional parameters?

I want my function should be like,

public class X
{
      public void func1(string A, optional string B, optional string C, optional string D, optional string E)
      {
            //Implement the logic on String A      
            //Implement the logic on String B
            //Implement the logic on String C
            //Implement the logic on String D
            //Implement the logic on String E
      }
}

Now if I call the above function in any classs like

class y
{

      public void func()
      {      
            string str1, str2;
            X obj = new X();
            obj.func1(str1, str2);
      }
}

Here in the above class y, I should be able to provide only 2 parameters and other 3 parameters not necessary. Based on these 2 parameters my logic should run only for the 2 strings and not the other 3 string parameters.

Kindly provide solution in C#.

regards,
Sanjay

Answer : Implementing optional parameters in a function - C#

Definitely nothing wrong!