Prevent user from entering white space during form input in asp.net model validation?

Question

I have bee using model validation in asp.net MVC website. I want to have a functionality to prevent user from entering whitespace in testbox and submit the form.

The

Answer 1

This regular expression might work

^[a-zA-Z0-9,-.@~!#$%&*<>?:;_='/()]+(\\s+[a-zA-Z0-9,-.@~!#$%&*<>?:;_='/()]+)*$