public string GetProductColumnJson(string inputJsonStr) { job = gm.getJsonResult(inputJsonStr); try { string column = job["Column"].ToString(); string value = job["Value"].ToString(); if (!column.Equals("") && !value.Equals("")) { return(main.GetProductColumn(column, value)); } else { return(gm.getStageJson(false, msg.dataError_cht)); } } catch (Exception ex) { Console.WriteLine(ex.Message); return(gm.getStageJson(false, msg.noData_cht)); } }