Creating a Required Input Server Control

One of the most common tasks we perform as ASP.NET developers is adding validated fields to a form. Typically, this involves adding: * a label to tell the user what information is expected * a TextBox, DropDrown, CheckBox or other element to collect the data * a Validator to check whether the data entered is good or not Rather than always adding these three elements, we can combine them into a single reusable server control. The less elements we need to add to a page, the less time it takes to do so.