Thank you for writing.
One way to achieve this is to set the button you want as a AcceptButton of the form it is in. This way whenever the user presses enter, the button will behave as if it was pressed.
If you want to select a button through code you just need to call its Select method:
I hope this will help. If you have further questions, feel free to ask.
the Telerik team
Q1’11 SP1 of RadControls for WinForms is available for download
; also available is the Q2'11 Roadmap
for Telerik Windows Forms controls.