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    <p>try this.. Sample Image - SimpleChat.jpg Introduction</p> <p>And why not, how to create an easy chat room for your web site? Well, the best way is to use a nice database to store messages; however, for demo purposes, I'll use a static array. I know, you won't be able to use it in your web farm. Take this article as the concept, not as a solution. This simple web chat program is intended to work in any browser supporting .</p> <p>Also, you can select multiple chat rooms. Why not extend from there and more from channel to channel. Background</p> <p>Some months ago, I was looking for a complete on-line customer service ASP.NET control to make my life easier, did not find anything interesting, so I built my own. Using the code</p> <p>Replace this class if you are using a database to save the messages: Collapse</p> <pre><code>public class Chat { static protected ArrayList pArray = new ArrayList(); static public void AddMessage(string sDealer, string sUser, string sMsg) { string sAddText = sDealer + "~" + sUser + "~" + sMsg; pArray.Add(sAddText); if ( pArray.Count &gt; 200 ) { pArray.RemoveRange(0,10); } } static public string GetAllMessages(string sDealer) { string sResponse = ""; for (int i=0; i&lt; pArray.Count; i++) { sResponse = sResponse + FormatChat(pArray[i].ToString(), sDealer); } return(sResponse); } static private string FormatChat(string sLine, string sDealer) { int iFirst = sLine.IndexOf("~"); int iLast = sLine.LastIndexOf("~"); string sDeal = sLine.Substring(0, iFirst); if ( sDeal != sDealer) return(""); string sUser = sLine.Substring(iFirst+1, iLast-(iFirst+1)); string sMsg = sLine.Substring(iLast+1); string sRet = "" + sUser + ": " + sMsg + ""; return(sRet); } } </code></pre> <p>The above code reads and writes from the static array like in a database. The code only allows having 200 messages in the array, after that it deletes the top 10 at the time.</p> <p>The Chat page is pretty simple; this is the code behind aspx.cs: Collapse</p> <pre><code>public class ChatWin : System.Web.UI.Page { protected System.Web.UI.WebControls.TextBox TB_ToSend; protected System.Web.UI.WebControls.Button BT_Send; private void Page_Load(object sender, System.EventArgs e) { if ( Page.IsPostBack == false ) { if ( Request.Params["Channel"] != null ) Session["ChatChannel"] = Request.Params["Channel"].ToString(); else Session["ChatChannel"] = "1"; } } #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); } /// &lt;SUMMARY&gt; /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// &lt;/SUMMARY&gt; private void InitializeComponent() { this.BT_Send.Click += new System.EventHandler(this.BT_Send_Click); this.Load += new System.EventHandler(this.Page_Load); } #endregion public string GetChatPage() { return("TheChatScreenWin.aspx"); } private void BT_Send_Click(object sender, System.EventArgs e) { string sChannel = ""; string sUser = ""; if ( Request.Params["Channel"] != null ) sChannel = Request.Params["Channel"].ToString(); else sChannel = "1"; if ( Request.Params["User"] != null ) sUser = Request.Params["User"].ToString(); else { Random pRan = new Random(); int iNum = pRan.Next(9); sUser = "Annonymouse" + iNum; } if ( TB_ToSend.Text.Length &gt; 0) { PageModule.Chat.AddMessage(sChannel, sUser, TB_ToSend.Text); TB_ToSend.Text = ""; } } } </code></pre> <p>When the SEND button is clicked, it calls the function AddMessage that adds a row into the end of the static array.</p> <p>The page inside the tag refreshes every 4 seconds without refreshing your actual page.</p>
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