To use these controls in Visual Studio, you must first integrate the DLL into your project and toolbox. 1. Download & Installation

The easiest way to get the latest version (v20.1.0) is via the AjaxControlToolkit NuGet Gallery .

While originally maintained by Microsoft, the toolkit is now managed by DevExpress. 2. Add DLL to Visual Studio Toolbox

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Ajax Control Toolkit Dll File May 2026

To use these controls in Visual Studio, you must first integrate the DLL into your project and toolbox. 1. Download & Installation

The easiest way to get the latest version (v20.1.0) is via the AjaxControlToolkit NuGet Gallery .

While originally maintained by Microsoft, the toolkit is now managed by DevExpress. 2. Add DLL to Visual Studio Toolbox