I installed the WPToolkit through NuGet and it was successful, but it wasn't add into project's solutions, that's why i can't add in the xaml
*The name "AutoCompleteBox" does not exist in the namespace "clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit". *
So what can i do?
I am using:
Microsoft Visual Studio Ultimate 2013 Version 12.0.30501.00 Update 2 Microsoft .NET Framework Version 4.5.51641
WPToolkit doesn't support new
Windows Phone 8.1 XAML (i.e. the new framework targeting Universal Application API's) based application.
But they do support
Windows Phone 8.1 Silverlight Application, which uses the old
8.0 Silverlight API's for application framework. And that you can find here & here. I tested this myself, I added the toolkit to Windows Phone 8.1 Silverlight application & it worked.
So you don't need to waste your time in adding .dll to a project where it doesn't support that .dll. If you want to build a 8.1 application & you do need to use the toolkit then just target 8.1 Silverlight app.
You can create one by going to
Visual Studio 2013 -> New Project -> Universal App -> Windows Phone App -> Blank App (Windows Phone Silverlight) -> Windows Phone 8.1 (Select)
Hope this helps.