private string ShowFile() { string res = "F"; DataTable dt = CostSharingInfoManage.importCostSharing(Request, true); if (dt != null) { dt.Columns.Add("状态"); dt.Columns["状态"].SetOrdinal(0);//调整到第一列 for (int i = 0; i < dt.Rows.Count; i++) { dt.Rows[i]["状态"] = "导入失败"; } res = JsonHelper.DataTableToJsonForEasyUiDataGridLoadDataMethod(dt.Rows.Count, dt); } return(res); }