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 · Accepted solution]

I understood the requirement. This time though, I'll repeat the earlier statement and show you the code.

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

translates to

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

if(!patt.test(newValue) || newValue.length != "10"){

        // error out.

}