This is the CodeArt blog. This is where we share everything from tips & tricks to thoughtleadership articles or interesting code samples.
If you are looking for older blog posts published by Allan Thraen (Like those from labs.episerver.com or Allantech.com) you might be able to find them in our Archive.
Episerver Forms: Adding custom validators to existing elements
It's easy to extend Episerver forms with custom validation types. But it's a little bit harder to add the new validation types to the existing elements. In this blog post I'll add an ultra simple letter-only validation option to the existing TextboxElement.