ControlContext :: columnEvent - Is generated event a column event
Column events are generated when changing the column content (edit) in a list control. In this case, the property path is set in parameter(1) and the field name in parameter(2).
Return value: State of function return ( bool )
A State true indicates, that the function was executed successfully. Otherwise state is false.
Implementation details
bool
ControlContext  :: columnEvent (  )
The function returns, whether the generated event has been generated for a list column (true) or not (false).

