Cannot find System.Windows.Controls.dll for Silverlight 3

Question

Where can I find System.Windows.Controls.dll for Silverlight 3? I need it to be able to use the TreeView control and the AutoCompleteBox control. Toolkit November 2009 is installed but the dll that I need was not included.

Answer 1

The AutoCompleteBox and the TreeView are part of the SDK not the Toolkit. The dlls that contains them are found typically at the following paths respectively:-

C:\Program Files\Microsoft SDKs\Silverlight\v3.0\Libraries\Client\System.Windows.Controls.Input.dll

C:\Program Files\Microsoft SDKs\Silverlight\v3.0\Libraries\Client\System.Windows.Controls.dll

(Note use "Program Files (x86)" on 64 bit systems)

However you should add them simply by using the "Add Reference" dialog, they have the component names of System.Windows.Controls.Input and System.Windows.Controls.

What is in the Toolkit and what is in the SDK can be a bit confusing. This is typically because things have a habit of migrating from Toolkit to the SDK once it matures. A clever bit of QA that.