AJAX实现TEXTBOX数据验证

最新推荐文章于 2018-07-03 11:36:00 发布

JOHNCOOLS

最新推荐文章于 2018-07-03 11:36:00 发布

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分类专栏： AJAX系列文章标签： textbox ajax string callback security input

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本文介绍了一个使用HTML和CS（C#）实现的输入验证功能，重点在于验证订单数量的有效性。通过客户端JavaScript和服务器端C#代码结合的方式，确保用户输入的订单数量符合规定，包括数字验证和非零检查，并通过不同级别的错误信息反馈给用户。

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1.HTML:

                document.getElementById('txt_orderQtyTest').value="1" ;
            }
        }
        </script>

......
        <TD align="left" width="20%"><INPUT class="text2" id="txt_orderQtyTest" onkeyup="VerifyorderQty(this.value)" disabled
                                type="text" size="29" name="txt_orderQtyTest" runat="server" Width="100%"></TD>

2.CS:

AjaxPro.Utility.RegisterTypeForAjax(typeof(COProduct));

[AjaxPro.AjaxMethod]
        public string txt_orderQty_TextChanged(string orderQty)
        {
            string error ="";
            error = quantityIsRight(orderQty);
            return errorDisposeStr(error);
        }

        private string quantityIsRight(string orderQty)
        {
            string errorCode = "";
            string qty = orderQty;
                int quantity;
            if(!isDigit(orderQty))
            {
                errorCode =  "WECO0200";
                return errorCode;
            }
            quantity = Convert.ToInt32( qty );

            if ( quantity == 0 )
            {
                errorCode =  "WECO0197";
                return errorCode;
            }
            return errorCode;
        }

        private bool isDigit(string orderQty)
        {
            return (Regex.IsMatch(orderQty, @"^[0-9]+$"));
        }

        private string errorDisposeStr(string errorCode)
        {
            Rhombus.Common.Error errs = new Rhombus.Common.Error(errorCode);

            string xmlFile = ConfigurationSettings.AppSettings["FunctionMappingFile"];
            Rhombus2.MasterFileService.MasterFile MFService = new Rhombus2.MasterFileService.MasterFile();
            string moduleName = MFService.getXmlElementValue(xmlFile,"COItemNew");
            string errorMessage ="";
            string security = errs.getSeverity(moduleName);
            switch(security)
            {
                case "1":
                    errorMessage = errs.pErrorCode + ":"+ "INFORMATION:" + errs.getErrorInfo();
                    break;
                case "2":
                    errorMessage = errs.pErrorCode + ":" + "WARNING:" + errs.getErrorInfo();
                    break;
                case "3":
                    errorMessage = errs.pErrorCode + ":" + "ERROR:" + errs.getErrorInfo();
                    break;
                default:
                    break;
            }
            return errorMessage;
        }