利用ajax為伺服器控制項綁定事件

最後更新：2018-12-03 來源：互聯網

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前台代碼：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="servestudent.aspx.cs" Inherits="servestudent" %>

<!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>無標題頁</title>
    <script language="javascript" type="text/javascript" src="ajax/jquery.js"></script>
    <script language="javascript" type="text/javascript">
//初始化時為伺服器控制項savebtn 綁定事件
    $(function(){

     $("#savebtn").click(
     function(){
     var username=$("#txtUsername").val();
     if(username.length==0)
     {
     alert("使用者名稱不可為空");
     return false;
     }
     var pwd=$("#txtPwd").val();
     if(pwd.length==0)
     {
       alert("密碼不可為空");
       return false;
     }
     $.ajax({
             type:'POST',
             url:'servestudent.aspx',
             data:{action:'action',Username:username,Pwd:pwd},
             success: savesuccesscallbace
     })
     }
     )
     });
     //儲存成功後的回呼函數
function savesuccesscallbace(r)
{
if(r=="ok")
{
    alert('儲存成功');
     $("#Savespan").html(" <img src='image/check_right.gif'/>儲存成功");

}
else
{
   $("#Savespan").html(" <img src='image/check_error.gif'/>儲存失敗");
   return;
}
}

    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="txtUsername" runat="server"></asp:TextBox>
        <asp:TextBox ID="txtPwd" runat="server" TextMode="password" ></asp:TextBox>
        <asp:Button ID="savebtn" runat="server" Text="儲存" /></div>
        <span id="Savespan"></span>

    </form>
</body>
</html>

後台代碼：

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

public partial class servestudent : System.Web.UI.Page
{
    string StrAction = "";
    protected void Page_Load(object sender, EventArgs e)
    {
        StrAction = Request["action"];
        if (StrAction == "action")
        {
            string username = Request["Username"];
            string pwd = Request["Pwd"];
            if (saveData(username, pwd))
            {
                Response.Clear();
                Response.ContentType = "application/text";
                Response.Write("ok");
                Response.End();
            }
            else
            {
                Response.Clear();
                Response.ContentType = "application/text";
                Response.Write("no");
                Response.End();
            }
        }
    }
    /// <summary>
    /// 建立時間：2009-6-9
    /// 建立人：周昕
    /// 方法名稱：saveData();
    /// 作用：用於去判斷儲存資訊是否成功。
    /// </summary>
    /// <param name="username"></param>
    /// <param name="pwd"></param>
    /// <returns></returns>
    public bool saveData(string username, string pwd)
    {
        SqlConnection mycon = new SqlConnection();
        mycon.ConnectionString = ConfigurationManager.ConnectionStrings["BoBoConn"].ToString();
        mycon.Open();
        string sql = "insert into test values(@username,@pwd)";
        SqlCommand mycom = new SqlCommand(sql, mycon);
        mycom.Parameters.Add("@username", SqlDbType.VarChar, 50).Value = username;
        mycom.Parameters.Add("@pwd", SqlDbType.VarChar, 50).Value = pwd;
        int n = (int)mycom.ExecuteNonQuery();
        mycon.Close();
        if (n > 0)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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