Question: I'm looking for a solution for my problem with TextField. I need add masks on my textfields but I don't know how do this....I did try use MaskedTextField addon but I think that does not work on vaadin7.

I need masks: uppercase text, phone numbers, postal code, date and money values. 

Any idea ?

thanks

Answer: 
I'm not sure what exactly you mean by Masks, but you could just add your own [`Validator`](https://vaadin.com/api/com/vaadin/data/Validator.html) implementation to the field.   

If you need client side validation and even want to prevent invalid input, the [CSValidation add-on](https://vaadin.com/directory#addon/csvalidation) might be what you are looking for.
You could do it with a [Converter](https://vaadin.com/api/com/vaadin/data/util/converter/Converter.html). More information [here](https://vaadin.com/book/vaadin7/-/page/datamodel.properties.html) under 9.2.3.