javascript - ExtJs - Change Textfield VType dynamically -

a rather straightforward question. no answer found anywhere.

using extjs 4.2

i have 2 custom vtypes, , 1 textfield. want change textfield's vtype when user clicks radio button.

i know text field has been created doing:

textfield.vtype = 'othertype';

won't me. neither will:

ext.apply(textfield,{vtype:'othertype'});

so obvious stuff out. i'm toying destroying , re-creating it, (if works) seems overkill.

using ext.apply worked me, fiddle here: https://fiddle.sencha.com/#fiddle/4d4

hope helps..

Sp