一个有关uploadify的奇怪问题，求有经验的指导指导！！

蛋蛋的忧愁 2013-12-20 02:23:18

先贴上代码：
前台代码 uploadify.aspx



<head runat="server">

    <title></title>

    <script src="uploadify/jquery-1.6.3.min.js" type="text/javascript"></script>

    <link href="uploadify/uploadify.css" rel="stylesheet" type="text/css" />

    <script src="uploadify/jquery.uploadify.js" type="text/javascript"></script>

    <script>

        $(document).ready(function () {

            $("#uploadify2").uploadify({

                'swf': 'uploadify/uploadify.swf',

                'uploader': 'uploadify.aspx',//传回该页面的后台处理

                'buttonText': '选择附件',

                'fileTypeDesc': 'FileType',

                'fileTypeExts': '*.doc;*.pdf;*.ceb;',

                'auto': false,

                'simUploadLimit': 1,

                'queueSizeLimit': 1,

                'removeCompleted': false,

                'multi': false,

                'onSelect': function (file) {

                    this.addPostParam("file_name", encodeURI(file.name));

                },

                'onUploadSuccess': function (file, data, response) {

                    $('#' + file.id).find('.data').html(' 上传完毕');

                    $(".cancel").css({ display: "none" });

                    //“第二处赋值”返回的name获取不到？？？为什么？？？？

                    var name1 = document.getElementById("uName").value;

                    alert(name1);

                    HasMainText = 1;

                    $("#kongjian").show();

                    $("#mainText").show();

                    $("#zhengwen").hide();

                    MainTextFileName = file.name;

                }

            });

        })

    </script>

</head>

<body>

    <form id="form1" runat="server">

    <table>

        <tr>

            <td>

                附件上传：

            </td>

            <td>

                <div id="fileQueue2">

                </div>

                <input type="file" name="uploadify2" id="uploadify2" />

                <p class="operatorButton">

                    <a href="javascript:$('#uploadify2').uploadify('cancel', '*')">清空</a> | <a href="javascript:$('#uploadify2').uploadify('upload', '*')">

                        上传</a>

                </p>

            </td>

        </tr>

        <asp:HiddenField ID="HiddenFileName" runat="server" />

        <input id="uName" name="uName" type="hidden" value="<%=name %>" />

    </table>

    </form>

</body>

后台代码 uploadify.aspx.cs



public partial class uploadify : System.Web.UI.Page

{

    public string name;

    protected void Page_Load(object sender, EventArgs e)

    {

        HttpPostedFile file = Request.Files["Filedata"];

        string uploadPath = AppDomain.CurrentDomain.BaseDirectory + "UpLoadFiles\\";        

        DateTime date = DateTime.Now;

        string dt = date.ToString();

        dt = dt.Replace(" ", "-").ToString();

        dt = dt.Replace(":", "-").ToString();

        string GuidStr;

        //第一处赋值

        //name = "123";

        //此处name赋值前台可以得到值

        if (file != null)

        {

            GuidStr = Guid.NewGuid().ToString() + "-" + dt + "-" + file.FileName;

            //此处name赋值前台不可以得到值？？？？？？

            //第二处赋值

            //name = "123";

            //name = GuidStr;            

            HiddenFileName.Value = GuidStr;

            if (!Directory.Exists(uploadPath))

            {

                Directory.CreateDirectory(uploadPath);

            }

            file.SaveAs(uploadPath + GuidStr);

            //下面这句代码缺少的话，上传成功后上传队列的显示不会自动消失

            Response.Write("1");

        }

        else

        {

            //Response.Write("0");

        }

        //第三处赋值

        //name = "123";

        //此处name赋值前台可以得到值

    }

}

代码上传文档没有问题，我就是想在上传文档成功后将文件名传到前台去，我试了下在后台代码中有三处给name变量赋值，“第一处赋值”、“第三处赋值”赋值前台均能得到name变量的值，在“第二处赋值”是（也就是在if()中赋值时）前台返回的name为空！！！很奇怪，各位大神乘着等放假的愉快心情帮小弟来解决下嘞！！！！

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