Simplest way to do Validation in WPF is usually implementing interface, and do the validation in the indexer’s getter. It turns out to be ugly and gets out of hand when your model / viewmodel gets a little larger. Continue reading

One of the good grid controls in WPF world belongs to Infragistics. With all the bells and whistles, there are still some limitation, some are WPF engine limitation and some are not. One thing that is very limiting is validation of data prior them being added to datasource. Continue reading

ASP.NET MVC has great ajax integration with no doubt. Simply by using ajax forms you can use partial page rendering and there are also controller callbacks. One thing that will break if you switch to Ajax / JsonResult is the built-in Validation result (ModelErrors) rendering of the MVC engine. Continue reading