案例(用封装的ajax加载数据库的数据到页面)

本程序主要功能是以表格方式在网页上显示数据库的内容

LoadUsers.htm代码：

<head>
    <title></title>
    <script src="jquery-1.8.3.js" type="text/javascript"></script>
    <script src="MyAjax.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(function () {
            MyAjax("LoadUsers.ashx",
            function (resTxt) {
                var users = resTxt.split("|");
                for (var i = 0; i < users.length; i++) {
                    var user = users[i];
                    var fileds = user.split(",");
                    var id = fileds[0];
                    var name = fileds[1];
                    var password = fileds[2];
                    $("#tbody1").append("<tr><td>" + id + "</td><td>" + 
                    name + "</td><td>" + password + "</td></tr>");
                }
            }, 
            function (status) {
                alert("加载数据错误");
            });
        });
    </script>
</head>
<body>
    <table border="1" cellpadding="0" cellspacing="0">
        <thead>
            <tr>
                <th>id</th>
                <th>name</th>
                <th>password</th>
            </tr>
        </thead>
        <tbody id="tbody1" align="center">
        </tbody>
    </table>
</body>

LoadUsers.adhx代码：

public void ProcessRequest(HttpContext context)
{
    context.Response.ContentType = "text/plain";
    List<string> list = new List<string>();
    DataTable table = SQLHelper.ExecuteReader("select * from Users");
    foreach (DataRow row in table.Rows)
    {
        list.Add(row["id"] + "," + row["name"] + "," + row["password"]);
    }
    string str = string.Join("|",list);//1,admin,123|2,bbb,123|3,aaa,123
    context.Response.Write(str);
}

 

posted @ 2015-07-30 13:54  黄者之风  阅读(344)  评论(0)  编辑  收藏  举报