//-------------------------------------------------------------------------------------- CSS & HTML --
        public new static string GetCssTree()
        {
            string rtn = "";

            rtn += ImportExportUI_UploadExcel.GetCssTree();
            rtn += GetCssRoot();
            return(rtn);
        }
        //----------------------------------------------------------------------------------------------------
        public void Instantiate_Sub()
        {
            this.jRoot = J("<div class='ImportExportUI jRoot'>");
            this.jRoot.append(this.GetHtmlRoot());

            this.UploadExcel           = new ImportExportUI_UploadExcel();
            this.UploadExcel.ViewModel = this.ViewModel;
            this.UploadExcel.Instantiate();
            this.UploadExcel.Close();
            this.UploadExcel.OnClose.After.AddHandler(this, "UploadExcel_Close", 0);
            jF(".Holder_UploadExcel").append(this.UploadExcel.jRoot);
        }