Extended WPF Toolkit - How to add reference to project?

Question

I am new to WPF. I want to use datetime picker. I have downloaded the \"Extended WPF Toolkit - 1.9.0\" from below site.

http://wpftoolkit.codeplex.com/releases/view/9697

Answer 1

Installation Extended Toolkit using NuGet

Install NuGet  
Open your Visual Studio.  
Open your solution/project.  
Open Tools menu, select Library Package Manager and select Package Manager Console
Run the following command "Install-Package Extended.Wpf.Toolkit"      

then try you will get the namespace.

NuGet package page (available since 17 June 2016)