Here i have explained how to Install AjaxControlToolkit in Asp.Net.

First of all Download 'AjaxControlToolkit-Framework3.5SP1.zip' file from the ASP.NET AJAX Control Toolkit Releases page.

Step 1: Open Toolbox > Right click on the Toolbox > Click on Add Tab

 

Step 2: Give name to the Tab

 

Step 3: Click on Choose Items

 

Step 4: Select ".NET Framework Components" Tab and Click on "Browse" Button

 

Step 5: Select "AjaxControlToolkit.dll" file and click on "Open" Button

 

Step 6: Click on "Ok" Button

 

Done: now you can see installed AJAX Control Toolkit here

 

Screenshot

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