Adding Non-Visual Components to a Web Form In Visual Studio 2005 the Component Tray has changed. To add non-visual controls to the form, you must open the Component Designer surface of your Web page. To do this, right-click your Web Form in the Solution Explorer (or right click the Web Form in design mode) and select View Component Designer from the shortcut menu. This opens the Compnent Designer for your web page. Adding Event Handlers to a Web Form You also need to use the Component Designer to add event handlers (other than Load) for your web page. After you … Continue reading ASP.NET Visual Studio Component Tray – Where is it?