Custom Controls ASP.Net Tutorial

File: ProductView.cs
using System;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;
namespace myControls
{
    [DefaultProperty("Title")]
    public class ProductView : WebControl
    {
        private string _title = "Product Title";
        private string _description = "Product Description";
        [Category("Product")]
        [Description("Product Title")]
        public string Title
        {
            get { return _title; }
            set { _title = value; }
        }
        [Category("Product")]
        [Description("Product Description")]
        public string Description
        {
            get { return _description; }
            set { _description = value; }
        }
        protected override void RenderContents(HtmlTextWriter writer)
        {
            writer.RenderBeginTag(HtmlTextWriterTag.H1);
            writer.Write(_title);
            writer.RenderEndTag();
            writer.Write(_description);
        }
        protected override HtmlTextWriterTag TagKey
        {
            get
            {
                return HtmlTextWriterTag.Div;
            }
        }
    }
}
File: ShowProductView.aspx
<%@ Page Language="C#" %>
<%@ Register TagPrefix="custom" Namespace="myControls" %>
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


    Show ProductView


    
    

            id="ProductView1"
        Runat="server" />