: If you download the DLLs manually, right-click References in your project, select Add Reference , and browse to the extracted AjaxControlToolkit.dll .
: Only download the toolkit from GitHub , NuGet , or DevExpress . Avoid third-party "driver download" sites or unofficial mirrors, as these may contain outdated versions or bundled malware. Download Ajax Control Toolkit zip
: Since 2014, DevExpress has maintained the toolkit. You can find installer versions and documentation on the DevExpress AJAX Control Toolkit page. 🛠 Installation & Setup : If you download the DLLs manually, right-click
: Ensure your project targets .NET Framework 4.0 or higher , as recent versions of the toolkit do not support older frameworks. : Since 2014, DevExpress has maintained the toolkit
: The full source code and latest releases are available on the official GitHub page . You can download the source as a .zip file by clicking the Code button and selecting Download ZIP .
: Remember that most toolkit controls require a ScriptManager or ToolkitScriptManager on the page to function correctly.