I got a case where I have a Form field that must be mandatory (or not) depending on a value of another Form field.
I would like to make the validation at runtime, just like the vtype does.(not when I post the page)
I cannot use the VType because it is not triggered when the value is null.
There is an Ext JS property that indicates if the field is required (allowBlank) which work fine, but I cannot change it at runtime..
Is there something I can do to achieve this kind of validation?