Introduction to Developing a Custom Web Control.

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace WebApplication1
{
	/// <summary>
	/// Summary description for WebForm1.
	/// </summary>
	public class WebForm1 : System.Web.UI.Page
	{
		
		protected string[] msgtype= new string[]{"INFORMATION","WARNING","ERROR"};
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.RadioButton RadioButton1;
		protected System.Web.UI.WebControls.RadioButton RadioButton2;
		protected System.Web.UI.WebControls.Button Button1;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;
		protected System.Web.UI.WebControls.RadioButton Radiobutton3;
		protected System.Web.UI.WebControls.RadioButton Radiobutton4;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.Button Button2;
		protected System.Web.UI.WebControls.Button Button3;
		protected Genesys.InformationLine InformationLine2;
		protected System.Web.UI.WebControls.Label Label3;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			// Put user code to initialize the page here
			if(!Page.IsPostBack)
				Page.DataBind();
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Button1.Click += new System.EventHandler(this.Button1_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.Button3.Click += new System.EventHandler(this.Button3_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void Button1_Click(object sender, System.EventArgs e) {
			InformationLine2.Text = TextBox1.Text;
			InformationLine2.Details = TextBox2.Text;
			if(RadioButton1.Checked){
				InformationLine2.IsDebug = true;
			}else if(RadioButton2.Checked){
				InformationLine2.IsDebug = false;
			}
			if(DropDownList1.SelectedIndex == 0){
				InformationLine2.MsgType = Genesys.InformationLine.MessageType.INFORMATION;
			}else if(DropDownList1.SelectedIndex == 1){
				InformationLine2.MsgType = Genesys.InformationLine.MessageType.WARNING;
			}else{
				InformationLine2.MsgType = Genesys.InformationLine.MessageType.ERROR;
			}
			InformationLine2.Enabled = true;
		}

		private void Button2_Click(object sender, System.EventArgs e) {
			if(Radiobutton4.Checked){
				InformationLine2.IsDebug = true;
			}else if(Radiobutton3.Checked){
				InformationLine2.IsDebug = false;
			}
			int i = 0;
			try{
				i = 2/i;
			}catch(DivideByZeroException ex){
				InformationLine2.Exception = ex;
			}
			InformationLine2.Enabled = true;
		}

		private void Button3_Click(object sender, System.EventArgs e) {
			InformationLine2.IsDebug = false;
			InformationLine2.Enabled = false;
		}
	}
}