这篇文章主要为大家详细介绍了ASP.net实现简易聊天室功能，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了ASP.net(C#)实现简易聊天室功能的具体代码，供大家参考，具体内容如下
1.搭建框架
聊天系统
2.框架涉及三个页面
建立相应的页面布局：
1.login.asp
using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; public partial class login : System.Web.UI.Page {undefined protected void Page_Load(object sender, EventArgs e) {undefined } protected void LoginBtn_Click(object sender, EventArgs e) {undefined if (LoginID.Text.Trim() == string.Empty) {undefined Response.Write(""); return; } if (LoginPwd.Text!= "123456") {undefined Response.Write(""); return; } if (!IfLonined()) {undefined Response.Write(""); return; } Session["username"] = LoginID.Text; if (Application["user"] == null) {undefined Application["user"] = Session["username"]; } else {undefined Application["user"] += "," + Session["username"]; } Response.Redirect("send.aspx"); } protected bool IfLonined() {undefined Application.Lock(); string users; string[]user; if (Application["user"]!=null) {undefined users = Application["user"].ToString(); user = users.Split(','); foreach(string s in user) {undefined if(s==LoginID.Text.Trim().ToString()) {undefined return false; } } } Application.UnLock(); return true; } protected void LoginPWD_TextChanged(object sender, EventArgs e) {undefined } }2.Register.asp
using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; public partial class Register : System.Web.UI.Page {undefined protected ArrayList ItemList = new ArrayList(); protected void Page_Load(object sender, EventArgs e) {undefined Response.AddHeader("Refresh", "1"); Application.Lock(); string users; string[] user; if (Application["user"]!=null) {undefined users = Application["user"].ToString(); user = users.Split(','); for(int i=user.Length-1;i>=0;i--) {undefined ItemList.Add(user[i].ToString()); } UserList.DataSource = ItemList; UserList.DataBind(); } Application.UnLock(); } protected void UserList_SelectedIndexChanged(object sender, EventArgs e) {undefined } }3.send.asp
using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; public partial class send : System.Web.UI.Page {undefined protected void Page_Load(object sender, EventArgs e) {undefined if (Session["username"] != null) {undefined Username.Text = Session["username"].ToString() + "说:"; } else {undefined Response.Redirect("login.aspx"); } } protected void SendBtn_Click(object sender, EventArgs e) {undefined string message; message = "" + Session["username"].ToString() + "说:"; message += Message.Text; message += "(" + DateTime.Now.ToString() + ")"; message += "
"; Application.Lock(); if (chk.Checked) Application["chatcontent"] = (string)Application["chatcontent"] + message + "" + ""; else Application["chatcontent"] = (string)Application["chatcontent"] + message; Application.UnLock(); Message.Text = null; } protected void LoginBtn_Click(object sender, EventArgs e) {undefined Response.Redirect("login.aspx"); } protected void LoginOutBtn_Click(object sender, EventArgs e) {undefined Application.Lock(); if (Application["user"] != null) {undefined string users; string[] user; users = Application["user"].ToString(); Application["user"] = null; user = users.Split(','); foreach (string s in user) {undefined if (s != Session["username"].ToString()) {undefined if (Application["user"] == null) {undefined Application["user"] = s; } else {undefined Application["uesr"] = Application["user"] + "," + s; } } } } if (Session["username"] != null) {undefined Session["username"] = null; } Application.UnLock(); Response.Redirect("login.aspx"); } protected void CheckBox1_CheckedChanged(object sender, EventArgs e) {undefined } }以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持0133技术站。
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