: If you download the DLLs manually, right-click References in your project, select Add Reference , and browse to the extracted AjaxControlToolkit.dll .
Right-click the Toolbox and select (name it "AJAX Toolkit"). Right-click inside the new tab and select Choose Items . Download Ajax Control Toolkit zip
: 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 . : If you download the DLLs manually, right-click
: Remember that most toolkit controls require a ScriptManager or ToolkitScriptManager on the page to function correctly. : The full source code and latest releases
: To see the controls in your Visual Studio Toolbox:
: Ensure your project targets .NET Framework 4.0 or higher , as recent versions of the toolkit do not support older frameworks.