We have 2 custom modules on a page, each module has one text box (with required field validators) and a button on click of which the validation should take place. Separate validation groups are assigned to the controls.
At runtime, if I click button of module 2, it shows validation error of module 1 as well. Similarly if I click button of module 1, it shows validation error of module 2 as well. Validation groups are not effective and works same as ASP.NET 1.1