How to : Variable Prameters in c# function.

 

We can use “params” to enable a method to accept variable number of parameters. For using this we can send comma parameter list as somefunction(1,2,3,1,3,4) to the method.

 1 public class VariableParamClass
 2 {
 3     //Variable Int Paramenter List
 4     public static void VariableParms(params int[] parameterList)
 5     {
 6         for (int i = 0; i < parameterList.Length; i++)
 7         {
 8             Console.Write(parameterList[i] + " ");
 9         }
10         Console.WriteLine();
11     }
12 
13     //Variable Object Parameter List
14     public static void objectVariableParamFunc(params object[] parameterList)
15     {
16         for (int i = 0; i < parameterList.Length; i++)
17         {
18             Console.Write(parameterList[i] + " ");
19         }
20         Console.WriteLine();
21     }
22 
23     static void Main()
24     {
25         VariableParms(1, 2, 3, 4);
26         objectVariableParamFunc(1, 'a', "test");
27         objectVariableParamFunc();
28         int[] myIntArray = { 5, 6, 7, 8, 9 };
29         VariableParms(myIntArray);
30         object[] myObjArray = { 2, 'b', "test", "again" };
31         objectVariableParamFunc(myObjArray);
32         objectVariableParamFunc(myIntArray);
33     }
34 }

Check out this video form more understanding :

param in c#