Adding loading screen to C# MVC ajax dialog form using jquery

czetsuya's tech ― With my experience from telerik, I want my entity's add and edit form to be a popup so I don't have to change screen. I'm using C# MVC3, so I tried to look for jquery add on that would do the job. Fortunately I've come up with this article: http://nickstips.wordpress.com/2011/08/11/asp-net-mvc-ajax-dialog-form-using-jquery-ui/. It uses jquery's ui dialog and mvc's partial view to render the popup form.But sometimes the submit event in the popup form requires some time to verify the data inputted[...]