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C# 4.0 : Named Arguments

  • Artigo

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!!!

Comments

  • Anonymous
    February 27, 2009
    PingBack from http://www.anith.com/?p=14155

  • Anonymous
    March 02, 2009
    .NET C# 4.0 : Named Arguments - New Extension Method “Zip” Back To Basics: Generational Garbage Collection

  • Anonymous
    March 02, 2009
    .NETC#4.0:NamedArguments-NewExtensionMethod“Zip”BackToBasics:GenerationalGarb...