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C# 4.0 : Named Arguments

For methods having numerous arguments we tend to get confused. And this is also pain for others while reviewing the code. C# 4.0 gives us an opportunity to pass parameters with name.


How it works, let’s check it. Suppose you have a method like below,


public static class TestClass


{


   public static void ParamMethod(string Name, double Salary,


string Department, int Age = 30)


   {


       Console.WriteLine(“Name = {0}”, Name);


       Console.WriteLine(“Age = {0}”, Age);


       Console.WriteLine(“Salary = {0}”, Salary);


       Console.WriteLine(“Department = {0}”, Department);           


   }


}


 


Now the calling would look like,


 


TestClass.ParamMethod(Name:“Wriju”, Salary:1000.00,


   Department:“Software”,Age:31);


 


You can alter the sequence of the parameters too,


 


TestClass.ParamMethod(“Tupur”, 2000.00,


   Department: “IT”, Age: 26);


No compiler overhead is associated with it.


Rule, Non-optional parameters has to be specified either sequentially or by name.


Namoskar!!!