validate postal code field in qform

Question

I am using below code to validate fax number field in my qform

if(objFormEdit.postalCode.defaultValue.length <=5){
            objFormEdit.postalCode.validateFormat('xxxxx','numeric', "Postal Code requires either a 5 or 9-digit number in either the format 'xxxxx' or 'xxxxx-xxxx'.");
        }
        else{
            objFormEdit.postalCode.validateFormat('xxxxx-xxxx','numeric', "Postal Code requires either a 5 or 9-digit number in either the format 'xxxxx' or 'xxxxx-xxxx'.");
        }

Its working fine but when i enter 1234-12345 then its change it to 12341-2345 and does not show any error. why its happening. I want error message in this case also.

Answer 1

Used custom function in qforms as below and it solved my problem.

 function __isValidPostalCode()
        {
              var regx="^[0-9]{5}(?:-[0-9]{4})?$";
              var regxObj = new RegExp(regx);
              if( regxObj.test(this.value) == false )
              {
                  this.error = "Postal Code requires either a 5 or 9-digit number in either the format 'xxxxx' or 'xxxxx-xxxx'.";
              }
        }

Load the function

_addValidator("isValidPostalCode", __isValidPostalCode);

called it as below

objFormEdit.postalCode.validateValidPostalCode();