Follow this link http://www.telerik.com/help/wpf/coded-ui-support.html.
In order to achive the test support for Level 2 and level 3 of telerik control on CodedUI, we must add the Telerik.VisualStudio.TestTools.UITest.Extension.ExtensionsCore assembly into the following directory : 
•	For Microsoft Visual Studio 2012 - "%CommonProgramFiles%\Microsoft Shared\VSTT\11.0\UITestExtensionPackages". 
After we had performed following above step, we have the below results:
Ex:
1.	We use CodedUI to check property for 1 standard wpf table on the window without telerik control. 
     + See attached file 1
     => No problem.
2.	We use CodedUI to check property for 1 standard wpf table and 1 table telerik on the same window, and the code was generated by CodedUI like below attached image 2 file.
+ The table telerik will be generated to WpfGridView.

+ The standard wpf table will be generated to UITestControl => the TA4VS’s actions for table can’t act on this standard wpf table => this is our problem.
I can't using some feature properties of WpfTable.
Note : this problem also happen on the other standard wpf controls such as: WpfEdit, WpfCombobox…
Please help to solve this problem.
Thanks and regards,
Hien Su