First article: initial knowledge of ASP. NET control Development _ Section II: HelloWorld

1) Step one: New Class Library project: Controls, creating a new solution: Customlibrary

2) Step two: Add "ASP" to the class library project. NET server control New item: RenderHelloWorld.cs (can also be a new class)

3) Step three: Modify the RenderHelloWorld.cs code as follows:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Linq;

using System.Text;

using system.web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace Controls

{

     Public class Renderhelloworld:control

    {

        protected Override void Render (HtmlTextWriter writer)

        {

            Writer. Write ("Hello World");

        }

    }

}

4) Step four: Add "ASP." NET empty Web Application "test project: Controlstest

5) Step Five: Add the Web Forms Test page: renderhelloworld.aspx

6) Step Six: Drag the generated control Renderhelloworld to

7) Step seven: Run the test project:

To view the generated HTML source code:

First article: initial knowledge of ASP. NET control Development _ Section II: HelloWorld