用swfupload上传，更改上传文件夹，但参数没有传递到，望帮忙！！

Question

swfuploadc#jsjqueryfunction

Answer 1

DropDownList 值改变了又怎么样？你又没做处理
UploadHandler.ashx始终只接收到一个request.files[0]

Answer 2

我这样改，但是上传的时候有错，应该怎么改啊：<script type="text/javascript">
        $(document).ready(function()
        {
            var d = document.getElementById("<%=DropDownList1.ClientID %>");//根据DropDownList的客户端
            var typeValue = d.options[d.selectedIndex].value;//获取DropDownList当前选中值
            $("#uploadify").uploadify({
                'uploader': 'JS/jquery.uploadify-v2.1.0/uploadify.swf',
                'script': '#',
                'cancelImg': 'JS/jquery.uploadify-v2.1.0/cancel.png',
                'folder': typeValue,
                'queueID': 'fileQueue',
                'auto': false,
                'multi': true,            
            });
            $('#DropDownList1').click(function () {
                $('#uploadify').uploadifySettings('script', 'ashx/UploadHandler.ashx?id=' + typeValue);
            });
        });  
    </script>UploadHandler.ashx.cs: public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";   
            context.Response.Charset = "utf-8";               HttpPostedFile file = context.Request.Files["Filedata"];   
            string  uploadPath =
                HttpContext.Current.Server.MapPath(@context.Request["folder"]) + "\\";              if (file != null)  
            {  
               if (!Directory.Exists(uploadPath))  
               {  
                   Directory.CreateDirectory(uploadPath);  
               }   
               file.SaveAs(uploadPath + file.FileName);  
                //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
               context.Response.Write("1");  
            }   
            else  
            {   
                context.Response.Write("0");   
            }  
        }

Answer 3

漏了，上面的  HttpPostedFile file = context.Request.Files["Filedata"];的 Filedata 应该是 id ,怎么改？我这样改，但是上传的时候有错，应该怎么改啊：<script type="text/javascript">
        $(document).ready(function()
        {
            var d = document.getElementById("<%=DropDownList1.ClientID %>");//根据DropDownList的客户端
            var typeValue = d.options[d.selectedIndex].value;//获取DropDownList当前选中值
            $("#uploadify").uploadify({
                'uploader': 'JS/jquery.uploadify-v2.1.0/uploadify.swf',
                'script': '#',
                'cancelImg': 'JS/jquery.uploadify-v2.1.0/cancel.png',
                'folder': typeValue,
                'queueID': 'fileQueue',
                'auto': false,
                'multi': true,            
            });
            $('#DropDownList1').click(function () {
                $('#uploadify').uploadifySettings('script', 'ashx/UploadHandler.ashx?id=' + typeValue);
            });
        });  
    </script>UploadHandler.ashx.cs: public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";   
            context.Response.Charset = "utf-8";               HttpPostedFile file = context.Request.Files["Filedata"];   
            string  uploadPath =
                HttpContext.Current.Server.MapPath(@context.Request["folder"]) + "\\";              if (file != null)  
            {  
               if (!Directory.Exists(uploadPath))  
               {  
                   Directory.CreateDirectory(uploadPath);  
               }   
               file.SaveAs(uploadPath + file.FileName);  
                //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
               context.Response.Write("1");  
            }   
            else  
            {   
                context.Response.Write("0");   
            }  
        }

Answer 4

    <script type="text/javascript">
        $(document).ready(function () {
            $('#file_upload').uploadify({
                'auto': false,
                swf: 'JS/jquery.uploadify-v2.1.0/uploadify.swf',
                uploader: 'UploadHandler.ashx',
                formData: { 'folder': $('#<%=DropDownList1.ClientID %>').val() },
                onUploadStart: function (file) {
                    $('#file_upload').uploadify('settings', 'formData', { 'folder': $('#<%=DropDownList1.ClientID %>').val() });
                },
                onUploadSuccess: function (file, data, response) {
                    alert(data);
                }
            });
        });
    </script>    <form runat="server">
        <asp:DropDownList ID="DropDownList1" runat="server">
            <asp:ListItem>1</asp:ListItem>
            <asp:ListItem>2</asp:ListItem>
            <asp:ListItem>3</asp:ListItem>
        </asp:DropDownList>
    </form>
    <input type="file" name="file_upload" id="file_upload" />
    <a href="javascript:$('#file_upload').uploadify('upload','*')">上传文件</a>
            context.Response.ContentType = "text/plain";            try
            {
                context.Response.Write("Folder:" + context.Request.Form["folder"] + "\rFileLength:" + context.Request.Files[0].ContentLength);
            }
            catch (Exception ex)
            {
                context.Response.Write(ex.Message);
            }
我没用过2.1 这个是3.2的 3.2 没的folder属性
但我像即使是2.1 你也应该在 onUploadStart 事件里重置 folder 的值。而不是去找$('#DropDownList1').click()

Answer 5

是不是DropDownList值出错了，既然用了JQ，那就用JQ的方法获取DropDownList值，$('#DropDownListID').val()

Answer 6

没有folder属性，也可能跟你用的浏览器有关，有些版本浏览器是去不懂folder属性，或者可以换个浏览器试试

Answer 7

各位，现在我知道怎么解决了，但是要解决下面的问题：就是在第29行的uploadifySettings()里面的12那里怎么引用第5行的typeValue变量？
    <script type="text/javascript">
        $(document).ready(function()
        {
            var d = document.getElementById("<%=DropDownList1.ClientID %>");//根据DropDownList的客户端
            var typeValue = d.options[d.selectedIndex].value;//获取DropDownList当前选中值         
            $("#uploadify").uploadify({
                'uploader': 'JS/jquery.uploadify-v2.1.0/uploadify.swf',
                'script': 'UploadHandler.ashx',
                'cancelImg': 'JS/jquery.uploadify-v2.1.0/cancel.png',
                'folder': 'abc',
                'queueID': 'fileQueue',
                'auto': false,
                'multi': true,            
            });          
        });  
    </script>
</head>
<body>
      <form id="form1" runat="server">
          上传到：
            <asp:DropDownList ID="DropDownList1" runat="server">
            <asp:ListItem>1</asp:ListItem>
            <asp:ListItem>2</asp:ListItem>
            <asp:ListItem>3</asp:ListItem>
        </asp:DropDownList>
    <div id="fileQueue"></div>
    <input type="file" name="uploadify" id="uploadify" />
    <p>
        <a href="javascript:$('#uploadify').uploadifySettings('folder','12');$('#uploadify').uploadifyUpload()">上传</a>|
        <a href="javascript:$('#uploadify').uploadifyClearQueue()">取消上传</a>
    </p>

Answer 8

其实这样就可以更改上传目录了，下面的12就是我自定义的目录：<a href="javascript:$('#uploadify').uploadifySettings('folder','12');$('#uploadify').uploadifyUpload()">上传</a>但是如果把12换成一些控件的值就不可以了，例如下面，为什么呢？<a href="javascript:$('#uploadify').uploadifySettings('folder','<%=TextBox1.Text %>');$('#uploadify').uploadifyUpload()">上传</a>|

Answer 9

swfupload这个库已经很久没更新了，对近两年出的新版本浏览器支持较差，建议使用Plupload