Hi @Sprint ,

Kindly try the below mentioned forge. Hope this will helps you.

Forge  : Restrict input to alphabet

Warm regards,

Dinesh M 

Hi Sprint,

This pattern attribute only works inside forms and you have to use the form validation. This will also only work when triggering the action and won't prevent anyone from filling in numbers, they will just get an error message below the input field.

What you could do to have it in realtime is use a forge component or just implement some javascript code in the onready action like below:

var inputs = document.getElementsByClassName('noNumbersClass');

 Array.prototype.forEach.call(inputs, function(input) {    input.addEventListener('keypress', function (event) {        if (event.keyCode >= 48 && event.keyCode <= 57) {            event.preventDefault();          }    });});

This will check all the fields with the noNumbersClass and prevent it from entering numbers. So make sure to set the right class name on your input field. Also use a javascript function in the on destroy action to clean up your eventlisteners when leaving the screen.

Also make sure when using a solution client side that you do the validation server side aswell.

pattern attribute  is used to define a regular expression that the input value must match for the form to be considered valid. This will not prevent you from entering numbers when you specify a pattern like [A-Za-z]*. If you want to prevent user from typing ( in your case numbers ) you need to handle the respective events  (OnPreyPress) and handle from javascript.

Add oninput event to that input widget,  and in the event handler 

add this java script code      

$parameters.OutputName = $parameters.InputFName.replace(/[^a-zA-Z\s]/g, '');

$resolve();

create input name is the input varible to that javascript widget, and outputname is output of that javascript widget.

assign your local varible of input widget to this javascript, and reassign this output your local variable again

this is prevent entering others values rather than Alphabets