AJAX校验商品价格（类似校验用户名）

服务器端程序

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<%@ WebHandler Language="C#" Class= "GetPrice" %>
 
using System;
using System.Web;
 
public class GetPrice : IHttpHandler {
    
    public void ProcessRequest (HttpContext context) {
        context .Response.ContentType = "text/plain";
        string name = context.Request ["name"];
        
        DataSetProductsTableAdapters .T_ProductsTableAdapter priceadapter=new DataSetProductsTableAdapters .T_ProductsTableAdapter();
        DataSetProducts .T_ProductsDataTable prices = priceadapter.GetDataByName(name);
        if ( prices.Count <=0)
        {
            context .Response.Write("none|0" );
        }
        else
        {
            DataSetProducts .T_ProductsRow price = prices[0 ];
            context .Response.Write("ok|" +Convert.ToString(price .Price));
        }
    }

客户端页面代码

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<script type="text/javascript">
        $( function () {
            $( "#Text1").blur(function () {
                var sname = $("#Text1" ).val();
                $.post( "GetPrice.ashx", { name: sname }, function (data, status) {
                    if (status == "success" ) {
                        var arrs = data.split("|" );
                        if (arrs[0] == "ok" ) {
                            $( "#Text2").val(arrs[1]);
                        }
                        else if (arrs[0] == "none") {
                            alert( "没有该商品" );
                        }
                        else {
                            alert( "AJAX错误");
                        }
                    }
                    else {
                        alert( "wrong");
                    }
 
                });
            });
        })
    </script >
 
<body>
 
    <p >
        <input id="Text1" type="text" />
        <input id="Text2" type="text" /></p>
 
</body>
</html>

测试效果


posted @ 2016-03-16 21:50  copperface  阅读(180)  评论(0)  编辑  收藏  举报