Script to validate telephone number to allow only numbers and spaces

[ClareM]

I need a script to validate a telephone number field that will only allow numbers and spaces (no special characters). Min 10 & max 20 characters and to show field msg and clear value if invalid value entered.

Can anyone point me in the right direction? Thanks in advance

[manish64]

you can make use of regular expression 

[Ankur Bawiskar]

Hi,

What format is the phone number?

Is it US format?

Regards
Ankur

[ClareM]

It could be any country format so just want to restrict the number of characters to between 10 & 20 and prevent special characters being entered i.e. + and ().

This would then match the validation in our ERP.

[Ankur Bawiskar · Accepted solution]

Hi,

something like this

function onChange(control, oldValue, newValue, isLoading) {
	if (isLoading || newValue == '') {
		return;
	}

	g_form.hideFieldMsg('fieldName');

	var regex = /^[\d\s]{10,20}$/;

	if (newValue != '' && !regex.test(newValue)) {
		g_form.clearValue('fieldName');
		g_form.showFieldMsg("fieldName", "Invalid phone", "error");
	}
}

Regards
Ankur