//bootstrap fileinput
            bundles.Add(new ScriptBundle("~/Content/bootstrap-fileinput/js").Include(
                        "~/Content/bootstrap-fileinput/js/fileinput.min.js",
                        "~/Content/bootstrap-fileinput/js/fileinput_locale_zh.js"));
            bundles.Add(new StyleBundle("~/Content/bootstrap-fileinput/css").Include(
                        "~/Content/bootstrap-fileinput/css/fileinput.min.css"));

@Scripts.Render("~/Content/bootstrap-fileinput/js")
@Styles.Render("~/Content/bootstrap-fileinput/css")

<form>
    <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
        <div class="modal-dialog modal-lg" role="document">
            <div class="modal-content">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                    <h4 class="modal-title" id="myModalLabel">请选择Excel文件</h4>
                </div>
                <div class="modal-body">
                    <a href="~/Data/ExcelTemplate/Order.xlsx" class="form-control" style="border:none;">下载导入模板</a>
                    <input type="file" name="txt_file" id="txt_file" multiple class="file-loading" />
                </div></div>
        </div>
    </div>
</form>

<input type="file" name="txt_file" id="txt_file" multiple class="file-loading" />

$(function () {
    //0.初始化fileinput
    var oFileInput = new FileInput();
    oFileInput.Init("txt_file", "/api/OrderApi/ImportOrder");
});

//初始化fileinput
var FileInput = function () {
    var oFile = new Object();

    //初始化fileinput控件（第一次初始化）
    oFile.Init = function(ctrlName, uploadUrl) {
    var control = $('#' + ctrlName);

    //初始化上传控件的样式
    control.fileinput({
        language: 'zh', //设置语言
        uploadUrl: uploadUrl, //上传的地址
        allowedFileExtensions: ['jpg', 'gif', 'png'],//接收的文件后缀
        showUpload: true, //是否显示上传按钮
        showCaption: false,//是否显示标题
        browseClass: "btn btn-primary", //按钮样式     
        //dropZoneEnabled: false,//是否显示拖拽区域
        //minImageWidth: 50, //图片的最小宽度
        //minImageHeight: 50,//图片的最小高度
        //maxImageWidth: 1000,//图片的最大宽度
        //maxImageHeight: 1000,//图片的最大高度
        //maxFileSize: 0,//单位为kb，如果为0表示不限制文件大小
        //minFileCount: 0,
        maxFileCount: 10, //表示允许同时上传的最大文件个数
        enctype: 'multipart/form-data',
        validateInitialCount:true,
        previewFileIcon: "<i class='glyphicon glyphicon-king'></i>",
        msgFilesTooMany: "选择上传的文件数量({n}) 超过允许的最大数值{m}！",
    });

    //导入文件上传完成之后的事件
    $("#txt_file").on("fileuploaded", function (event, data, previewId, index) {
        $("#myModal").modal("hide");
        var data = data.response.lstOrderImport;
        if (data == undefined) {
            toastr.error('文件格式类型不正确');
            return;
        }
        //1.初始化表格
        var oTable = new TableInit();
        oTable.Init(data);
        $("#div_startimport").show();
    });
}
    return oFile;
};

　　　　 [ActionName("ImportOrder")]
        public object ImportOrder()
        {
            var oFile = HttpContext.Current.Request.Files["txt_file"];
            var lstOrderImport = new List<DTO_TO_ORDER_IMPORT>();

            #region 0.数据准备
            var lstExistOrder = orderManager.Find();
            var lstOrderNo = lstExistOrder.Select(x => x.ORDER_NO).ToList();
            var lstTmModel = modelManager.Find();
            var lstTmMaterial = materialManager.Find();
            //var iMax_Import_Index = lstExistOrder.Max(x => x.IMPORT_INDEX);
            //iMax_Import_Index = iMax_Import_Index == null ? 0 : iMax_Import_Index.Value;
            #endregion

            #region 1.通过Stream得到Workbook对象
            IWorkbook workbook = null;
            if (oFile.FileName.EndsWith(".xls"))
            {
                workbook = new HSSFWorkbook(oFile.InputStream);
            }
            else if(oFile.FileName.EndsWith(".xlsx"))
            {
                workbook = new XSSFWorkbook(oFile.InputStream);
            }
            if (workbook == null)
            {
                return new { };
            }

            //...............处理excel的逻辑


            //orderManager.Add(lstOrder);
            lstOrderImport = lstOrderImport.OrderBy(x => x.IMPORT_STATU).ToList();
            return new { lstOrderImport = lstOrderImport };
        }