Namespace using C#.net

In this Article , I will explain create and call namespace using C#.net in the Application.
First of all , we should know  Namespace and it usage.
Namespace:
  Namespace is a Collection of classes.
  Implementing Namespaces in your own code is a good habit because it is likely to save you from problems later when you want to reuse some of your code.
  user can create more than 1 class files and user can create enum within class file.
Use of Namespace:
  Namespaces allow you to create a system to organize your code.

Syntax of Namespace:
  namespace <namespace_name>
  class <class_name>
  Method <method_name>  
For Eg:
using System;
namespace Test_namespace
{
    class cls_namespace
    {
        public static void messageDisplay()
        {
            System.Windows.Forms.MessageBox.Show("Create Namespace");
        }
    }
}
In this Example, we create a namespace that is called Test_namespace,we add class in the namespace that is called cls_namespace and we create method in the Class that is called messageDisplay.
How to call the Namespace in the C#.net?
First ,we create an Application in the VS 2008.
we just add a Code file in the Project and name is called "Test_namespace".
Copy code and paste into Code File.
using System;
namespace Test_namespace
{
    class cls_namespace
    {
        public static void messageDisplay()
        {
            System.Windows.Forms.MessageBox.Show("Create Namespace");
        }
    }
}
How to call a Namespace in the C#.net Project?
just use "Using" Keyword for declare namespace in the Parent
Open Project Code view
call a Namespace in the Code View.
using Test_namespace;
call a Method in the Load Event.
Copy code and paste into Code view.
  cls_namespace.messageDisplay();
Run the Application . User can see the MessageBox before form loading