In this article I will explain with an example, how to install AjaxControlToolkit library from Nuget package in Visual Studio.
 
 

Downloading AjaxControlToolkit package

You will need to install the AjaxControlToolkit package using the following command.
Install-Package AjaxControlToolkit -Version 20.1.0
 
Install AjaxControlToolkit library using Nuget
 
Once the package is installed, a success message will be displayed.
Install AjaxControlToolkit library using Nuget
 
 

Adding reference to AjaxControlToolkit to Web.Config file

In order to use AjaxControlToolkit library in ASP.Net WebForms the following settings need be saved in the Web.Config file.
Once the library is installed from Nuget, following settings must be done in the Web.Config file.
<system.web>
    <pages>
        <controls>
            <add tagPrefix="ajaxtoolkit" namespace="AjaxControlToolkit" assembly="AjaxControlToolKit" />
        </controls>
    </pages>
</system.web>