jquery uploadify插件传参数

Question

upload.aspx.cs protected void Page_Load(object sender, EventArgs e)
    {    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        HF_RoomID.Value = "ss";
    }
upload.aspx        $(document).ready(function() {            $("#uploadify1").uploadify({
                'uploader': 'jquery/uploadify.swf',
                'method':'GET',
                'script': 'Handler.ashx',
                'scriptData':{'rnd':Math.random(),'ids':$("#HF_RoomID").val()},//传ids
                'cancelImg': 'jquery/cancel.png',
                'folder': 'UploadFile',
                'queueID': 'fileQueue1',
                'auto': false,
                'multi': true
            });
        });
    <form id="form1" runat="server">
    <asp:ScriptManager ID="Scriptmanager1" runat="server">
    </asp:ScriptManager>
    <div>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
                <asp:HiddenField ID="HF_RoomID" runat="server" />
            </ContentTemplate>
        </asp:UpdatePanel>
        <div id="fileQueue1">
        </div>
        <input type="file" name="uploadify1" id="uploadify1" />
        <p>
            <a href="javascript:fileID='AAA';$('#uploadify1').uploadifyUpload()">上传</a>| <a href="javascript:$('#uploadify1').uploadifyClearQueue()">
                取消上传</a>
        </p>
    </div>
    </form>Handler.ashxpublic void ProcessRequest (HttpContext context) {
        context.Response.ContentType = "text/plain";
        string id = context.Request["ids"];//这里得到的ids是空的。
        
    }
问题 ：string id = context.Request["ids"];//这里得到的ids是空的。
 

Answer 1

'scriptData':{'rnd':Math.random(),'ids':$("#HF_RoomID").val()},//传ids
改成
'scriptData':{'rnd':Math.random(),'ids':$("#<%=HF_RoomID.ClientID%>").val()},//传ids

Answer 2

还是得到的ids是“”，rnd的值是能得到的，真奇怪 

Answer 3

因为你的事件是在 $(document).ready时加载，当页面读取完成时$("#HF_RoomID").val()取值肯定是空的。我最近也碰到了这样的问题。我的解决方案是自己写一个function，然后在方法中动态更改传值信息，就能保证你所传递的值是最新的。
$(document).ready(function() {
            $("#uploadify1").uploadify({
                'uploader': 'jquery/uploadify.swf',
                'method':'GET',
                'script': 'Handler.ashx',
                'cancelImg': 'jquery/cancel.png',
                'folder': 'UploadFile',
                'queueID': 'fileQueue1',
                'auto': false,
                'multi': true
            });
        });        function UploadFile()
        {
             $('#uploadify').uploadifySettings('scriptData', {'rnd':Math.random(),'ids':$("#HF_RoomID").val() });
            $('#uploadify').uploadifyUpload();
        }
这样就可以实现你要的效果了。不知道你看明白没？

Answer 4

直接添加个 function UploadFile() 就可以了吗？

Answer 5

楼主请问为什么我运行到
string id = context.Request["ids"];
这里的时候id永远为null还有在这里
'method': 'GET',
设好get后是不是就可以了~~

Answer 6

            $("#uploadify").uploadify({
                'uploader': '../jquery.uploadify-v2.1.0/uploadify.swf',
                'method': 'GET',
                'script': 'UploadHandler.ashx',
                //'scriptData': { 'rnd': Math.random(), 'no': neotek, 'type': type }, //传ids
                'cancelImg': '../jquery.uploadify-v2.1.0/cancel.png',
                'folder': 'UploadFile',
                'queueID': 'fileQueue',
                'auto': false,
                'multi': false,
                'onSelect': function (event, queueID, fileObj) {
                    $('#uploadify').uploadifySettings('scriptData', { 'rnd': Math.random(), 'no': _neotek, "type": _type });                },
                'onComplete': function (event, queueID, fileObj, response, data) {
                    var value = response;
                    if (response == "1") {
                        alert("Successfully");
                        location.href = location.href;
                    }
                    else alert("Failure");
                }
            });