Flag control properties as required in design view

Question

I\'d like to force the consumer of a control to give a property a value when placing the control on a page.

In VisualStudio when you create an < img > tag without att

Answer 1

While Microsoft.Build.Framework.Required is probably the best answer here, for others who stumble upon this and can't use .NET 4.0, you can also use this method:

http://forums.asp.net/t/1238319.aspx