Validate alpha numeric.

[SD29]

Hi All,

I have a requirement where I have to validate a single line text field to have alpha-numeric characters. I have written this onChange script as below, but I think it's not working as expected.

please help me.

function onChange(control, oldValue, newValue, isLoading) {

    if (isLoading || newValue == '') {

          return;

    }

  g_form.hideFieldMsg('SAP Customer Number');

  var patt = "^[a-zA-Z0-9]*$";

  if (!patt.test(newValue))

  g_form.showFieldMsg('SAP Customer Number','Invalid input','error');

  var patt2 = "^[Nn]/[Aa]$";

  if (!patt.test(newValue))

  g_form.showFieldMsg('SAP Customer Number','Invalid input','error');

}

Thanks in Advance,

SD

[adiddigi]

You are missing constructor.

You should do :

var patt = new RegExp("^[a-zA-Z0-9]*$");

test() is not a method of String class. It's a method of RegExp class.

Also you can just use   var rege = new RegExp("^[a-zA-Z0-9_]*$");   rege.test(newValue) to test for alpha numeric.

[SD29]

Hello Abhiram,

Thanks for your response. This works perfectly. But I need this Alpha-numeric to be 10 Characters only.

How can I do that??

Thanks,

SD

[adiddigi]

you dont need a regeexp for that. Use .length property of newValue to check.

Mark this as answered if its working.

[SD29]

Hi Abhiram,

I don't think you understand the requirement.

I need the alpha numeric to be 10 Characters only.   Not less than 10 and not more than 10.

Could you please help me here with the script.

Thanks,

SD