Initializes the Controls collection when only one CMSButtonAction is present.
            
Namespace: CMS.ExtendedControlsAssembly: CMS.ExtendedControls (in CMS.ExtendedControls.dll) Version: 8.0.0.0 (8.0.5239.26125)
Parameters
- onlyAction
 - Type: CMS.ExtendedControls CMSButtonAction
The only action of the button 
See Also