Download source When creating web applications with ASP.NET developers will usually create User Controls or Custom Server Controls. User Controls have the ASCX extension and allow developers to group together ASP.NET controls and functionality into a reusable control. Custom Controls are a bit more complex and require the developer to define the html that the control generates as well as all it’s functionality. It is also possible to add child ASP.NET controls to a Server Control and have the control … →