The toolkit was designed to bridge the gap between server-side logic and client-side interactivity without requiring deep JavaScript knowledge.
: For .NET 3.5, look for files named AjaxControlToolkit-Framework3.5.zip or AjaxControlToolkit.Binary.NET35.zip . Key Features for .NET 3.5 Development
: Standalone components like the Accordion , Tabs , and ModalPopup allow for advanced UI layouts with minimal configuration.
: You can still find legacy packages like Cquential.AjaxControlToolkit 3.5.40412.2 which are explicitly compatible with .NET 3.5.
Since there is no automated installer for this legacy version, follow these steps to add it to your environment: How do I find out which version of AjaxToolKit do I have?
: When properly installed in Visual Studio 2008, these controls can be dragged and dropped directly onto a Web Form. How to Install the Toolkit in Visual Studio 2008