What is the proper way to deal with input validation?

[Disastercake]

I've been putting this off for a while, but I can't seem to find a way to do input validation when typing in text.  For example, what if I only want the player to be able to type 10 characters for a name?  or only A-Z characters (no numbers, or special character).  I was expecting NGUI to have a native solution to this, but can't find it.

What is the proper way to handle this type of validation? 

[ArenMook]

Can't find it? Serious?

UIInput.maxChars
UIInput.validator

[Disastercake]

I  guess I was focusing on the label component, and not the parent.  Silly me.  Thanks for the links.

There's almost no documentation on UIInput.validation, though.  I would say that it's a good idea to state in the doc notes that it's a component of it's own that you are required to add.

[ArenMook]

Take a look inside UIInputValidator.