uploadify使用教程

              <div>
                 <input type="file" id="uploadify" name="uploadify" />
             </div>
             <div>
                 <a href="javascript:$('#uploadify').uploadify('upload');">上传</a>
             </div>            

js

  $(function () {
         $('#uploadify').uploadify({
             width: 60,                          // 按钮的宽度
             height: 23,                         // 按钮的高度
             method:"get",
             buttonText: "选择文件",
             buttonCursor: 'hand',                // 按钮的鼠标图标
             //fileObjName: 'Filedata',            // 上传参数名称
             // 两个配套使用
             fileTypeExts: "*.xls;",             // 扩展名
             fileTypeDesc: "请选择 xls 文件",     // 文件说明
             queueID:"fileQueue",
             'auto': false,
             'swf'        : '/Content/Script/uploadify/uploadify.swf',
             'uploader'   : '/Report/ConsumptionAndUtilization/upload',
             'onUploadStart' : function(file) {
                 var zTree = $.fn.zTree.getZTreeObj("treeDemo");
                 var checkCount = zTree.getCheckedNodes(true);
                     var orgid = checkCount[0].OrganizationID;
                     $("#uploadify").uploadify("settings", "formData", {'date' : $("#textBegindate").val(), 'orgid' : orgid});

             }
         });

c#

      public ActionResult Upload(HttpPostedFileBase Filedata)
         {

             // 如果没有上传文件
             if (Filedata == null ||
                 string.IsNullOrEmpty(Filedata.FileName) ||
                 Filedata.ContentLength == )
             {
                 return this.HttpNotFound();
             }

             // 保存到 ~/photos 文件夹中，名称不变
             //  string filename = System.IO.Path.GetFileName(Filedata.FileName);
                          string virtualPath =
                 string.Format("~/Report/ConsumptionAndUtilization/Monthly/Tables/{0}", filename);
             // 文件系统不能使用虚拟路径
             string path = this.Server.MapPath(virtualPath);
             Filedata.SaveAs(path);           

               return this.Json(new { });
         }