Custom controls have two requirements. They need to interact with a web page (and your code) at runtime, and they need to interact with Visual Studio at design time. These two tasks are related, but they can be refined and customized separately. Some of ASP.NET’s most advanced controls (such as the Wizard and GridView) include an impressive degree of design-time smarts, including the ability to configure complex properties and apply themes with the click of a mouse.
KeywordsDesign Time Custom Control Visual Studio Public Class Property Window
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