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1.DropDownList的Name和ViewData相同时SelectList 的selected 失效

1 SelectList ZDZListItem = new ListItem<HGZP.Model.Cjb_list_fxz>().GetListItem(ZDZList, "s_mch", "s_mch",
2 orderInfo.CurrentZDZ);

3 
4 <% var aa = ((SelectList)ViewData["ZDZ111"]).SelectedValue.ToString();
5 if(!string.IsNullOrEmpty(aa)){ %>
6 <%:Html.DropDownListFor(OrderInfo => OrderInfo.ZDZ, ViewData["ZDZ111"] as SelectList, new { id = "ddlZDZ", 

  Style = "width:70px", @class = "focus", disabled = "true" })%><% }else{%>
7 <%:Html.DropDownListFor(OrderInfo => OrderInfo.ZDZ, ViewData["ZDZ111"] as SelectList, new { id = "ddlZDZ", 

  Style = "width:70px", @class = "focus" })%>

8 <%}%><%=Html.DropDownList("ddlSysid", (SelectList)ViewData["ZDZ111"])%>

2.使用jquery.form.js上传文件

服务器上传文件目录名称不能与controller名称相同，如果相同URL导航会出现错误

ajaxSubmit方法中dataType使用默认值不能用json

服务器端返回时要跳转到其他view

strJson = "{suc:1,msg:'保存成功！',orderId:'" + orderInfo.OrderId + "',orderDetailId:'" + orderInfo.OrderDetailId + @"',chargeId:'" + orderInfo.ChargeId + "',giftDetailId:'" + orderInfo.GiftDetailId + "',PaperBoxNum:'" + 
orderInfo.PaperBoxNum + "',SubscibeNum:'" + orderInfo.SubscibeNum + "'}";

ViewData[

"strJson"] = strJson;
return View("~/Areas/OrderInfoManage/Views/FileUploadSuccess.aspx", ViewData["strJson"]);<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>
<%
String json = ViewData["strJson"].ToString();
Response.Write(json);
%>

如果附加其他属性（form以外的）可以如下处理

orderValue = JSON.stringify({
            orderId: $("#txtOrderId").val(),
            orderDetailId: $("#txtOrderDetailId").val(),
            paperBoxNumOld: $("#txtPaperBoxNumOld").val(),
            subscibeNumOld: $("#txtSubscibeNumOld").val(),
            chargeId: $("#txtChargeId").val(),
            giftDetailId: $("#txtGiftDetailId").val(),
            giftKCId: $("#txtGiftKCId").val(),
            paperName: $("#ddlNewsPaper option:selected").text(),
            giftName: $("#ddlGift option:selected").text(),
            isCheck: $("#txtIsCheck").val()
        });
        eval("orderValue = '" + JSON.stringify(JSON.parse(orderValue)) + "';");

$(

"#orderManageForm").ajaxSubmit({
                    url: "OrderManage/OrderAllAdd/",
                    //contentType: "multipart/form-data",
                    //dataType: 'json',
                    data: {
                        strJson: escape(orderValue)
                    },
                    
                    clearForm: false,
                    resetForm: false,
                    success: function (data) {
                        try {
                            var json = eval("(" + data + ")");
                            alert(HTMLDeCode(json.msg));
                            if (json.suc == 1) {
                                $("#txtOrderId").val(json.orderId);
                                $("#txtOrderDetailId").val(json.orderDetailId);
                                $("#txtChargeId").val(json.chargeId);
                                $("#txtGiftDetailId").val(json.giftDetailId);
                                $("#txtPaperBoxNumOld").val(json.PaperBoxNum);
                                $("#txtSubscibeNumOld").val(json.SubscibeNum);
                                orderValue = JSON.stringify({
                                    orderId: $("#txtOrderId").val(),
                                    isCheck: $("#txtIsCheck").val()
                                });
                                eval("orderValue = '" + JSON.stringify(JSON.parse(orderValue)) + "';");

                                jQuery(

"#orderGrid").jqGrid("setGridParam", {
                                    postData: { strJson: orderValue }
                                });
                                jQuery("#chargeGrid").jqGrid("setGridParam", {
                                    postData: { strJson: orderValue }
                                });
                                $("#orderGrid").trigger("reloadGrid");
                                $("#chargeGrid").trigger("reloadGrid");
                                saveFlag = "OrderUpdate";
                                $("#orderAllSaveBtn").attr("disabled", "true")
                            }
                            $("#txtZDDate").focus().trigger("focusin");
                        } catch (e) {
                            alert(e);
                            return;
                        }
JsonModel jsonObj = new JsonModel(System.Web.HttpUtility.UrlDecode(Request["strJson"]));