使用js不用ajax 也可以实现，页面无刷新回调功能
View Code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="_Default2" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script type="text/javascript"> function getWriteText() { var name = document.forms[0].TextBox2.value;//输入的值 var name2 = document.forms[0].TextBox2.value;//输出的值 UserCallBack(name,""); } function getValueFormServer(TextBox1, content) { document.forms[0].TextBox1.value = TextBox1; } </script> </head> <body> <form id="form1" runat="server"> <asp:TextBox ID="TextBox2" Width="600px" runat="server"></asp:TextBox> <asp:TextBox ID="TextBox1" Width="600px" runat="server"></asp:TextBox> <input id="Button1" type="button" value="button" onclick="getWriteText()" /> </form> </body> </html>
后台代码
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using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; public partial class _Default2 : System.Web.UI.Page, ICallbackEventHandler { private string _callBackResult = null; protected void Page_Load(object sender, EventArgs e) { //加载，创建js函数 string cbReference = Page.ClientScript.GetCallbackEventReference(this, "arg", "getValueFormServer", "content"); string cbScript = "function UserCallBack(arg,content){" + cbReference + ";}"; Page.ClientScript.RegisterClientScriptBlock(GetType(), "UserCallBack", cbScript, true); } public void RaiseCallbackEvent(string enentArg) { //处理客户端异步请求 _callBackResult = "您输入的是："+enentArg; } public string GetCallbackResult() { //返回处理值 return _callBackResult; } }
这里需要实现System.Web.UI.ICallbackEventHandler 接口哦，并且要实现RaiseCallbackEvent和GetCallbackResult