asp.net 全部選中與取消操作,選中后的刪除(ajax)實現無刷新效果

2024-09-01 08:31:42

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來源：轉載

供稿：網友

現在我們在編程的時刻總是要利用一些最新的技術去解決問題。。。。下面是我用ajax與jequery結合在一起使用的一個實例。希能給一起學習的朋友們帶來幫助。

前臺代碼

復制代碼代碼如下:

:<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>用戶信息操作</title>
<script language="javascript" type="text/javascript" src="ajax/jquery.js"></script>
<script language="javascript" type="text/javascript">
//頁面的初始化
$(document).ready( function(){ loadUserInfo(); });
//加載用戶信息到頁面
function loadUserInfo()
{
$.ajax(
{
type:"POST",
url:"Default.aspx",
data:{action:'action'},
success:loadUserInfoCallbace
}
);
}
//頁面初始化回調函數
function loadUserInfoCallbace(r)
{
if(r=="")
{
$("#userInfo").html("暫無數據");
}
else
{
$("#userInfo").html(r);
}
}
//全部選中
function CheckAll(obj)
{
$("input[@type=checkbox][@name=checkItem]").attr("checked",$(obj).attr("checked"));
}
//收集所有選中項
function NumberID()
{
var allcheckboxs=$("input[@type=checkbox][@name=checkItem][checked]");
var ids="";
for(i=0;i<allcheckboxs.length;i++)
{
var id=$(allcheckboxs[i]).attr("id").split("_")[1];
ids+=id;
ids+=",";
}
return ids;
}
//刪除用戶
function DeleteUser()
{
if(!window.confirm("您真的要刪除選中用戶信息嗎?"))
{
return;
}
var ids=NumberID();
$.ajax({
type:'POST',
url:'Default.aspx',
data:{action:'Delete',userid:ids},
success:deleteUserCall
});
}
//刪除用戶回調函數
function deleteUserCall(r)
{
if(r=="ok")
{
alert("刪除成功");
loadUserInfo();
}
else
{
alert("失敗");
}
}
</script>
</head>
<body>
<form runat="server">
<div>
</div>
</form>
</body>
</html>

后臺代碼:

復制代碼代碼如下:

using System;
using System.Data;
using System.Configuration;
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;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
string Straction = "";
protected void Page_Load(object sender, EventArgs e)
{
Straction = Request["action"];
if(Straction=="action")
{
UserInfo();
}
if (Straction == "Delete")
{
DeleteUser();
}
}
/// <summary>
/// 周昕 2009-6-8號加載用戶詳細信息
/// </summary>
public void UserInfo()
{
SqlConnection mycon = new SqlConnection();
mycon.ConnectionString = ConfigurationManager.ConnectionStrings["BoBoConn"].ToString();
string sql = "select * from loginuser";
SqlCommand mycom = new SqlCommand(sql, mycon);
mycon.Open();
SqlDataReader myda = mycom.ExecuteReader();
StringBuilder str = new StringBuilder();
str.Append("<table><tr><td><input type='checkbox'/>全選</td><td>用戶名</td><td>用戶全名</td></tr>");
while (myda.Read())
{
str.Append("<tr><td>");
str.Append("<input type='checkbox'left'/></td>");
str.Append("<td>" + myda["UserName"].ToString() + "</td>");
str.Append("<td>" + myda["FullName"].ToString() + "</td></tr>");
}
str.Append("</table>");
str.Append(" <div><input type='button' value='刪除' /></div>");
Response.Clear();
Response.ContentType = "application/text";
Response.Write(str);
Response.End();
}
/// <summary>
/// 周昕 2009-6-8 刪除選中用戶的詳細信息
/// </summary>
public void DeleteUser()
{
//獲取用戶ID
string strID = Request["userid"];
string Userid = strID.Substring(0, strID.Length - 1);
//轉換成為數組
string[] stridArray = Userid.Trim().Split(',');
string sql = "delete from loginuser where";
for (int i = 0; i < stridArray.Length; i++)
{
string id = stridArray[i].ToString();
sql += "or";
}
SqlConnection mycon = new SqlConnection();
mycon.ConnectionString = ConfigurationManager.ConnectionStrings["BoBoConn"].ToString();
mycon.Open();
SqlCommand mycom = new SqlCommand(sql, mycon);
int n = (int)mycom.ExecuteNonQuery();
mycon.Close();
if (n > 0)
{
Response.Clear();
Response.ContentType = "application/text";
Response.Write("ok");
Response.End();
}
else
{
Response.Clear();
Response.ContentType = "application/text";
Response.Write("no");
Response.End();
}
}
}