Using validation groups in ASP.NET always posts back

A weird little annoyance I’ve only just noticed is that using validation groups with the ASP.NET validators always results in a postback on form submission and client-side validation doesn’t intervene. Oddly enough, client-side validation does engage when tabbing between fields.

As much as I love the ASP.NET validators and the validation framework for simple scenarios, its limitations are significant when it comes to anything more significant.

Peter Blum, here I come!