Before subselection (subfile) -> Boolean
                                                                                    Pg 44-8

subfile  	Subfile    Subfile for which to test if pointer is before selection

                        
Before subselection returns  True when the current subrecord pointer is before the first subrecord of subfile. Before subselection is used to check whether PREVIOUS SUBRECORD has moved the pointer before the first subrecord. If the current subselection is empty, Before subselection returns  True.


The following example is a script for a button. When the button is clicked, the pointer moves to the previous subrecord. If the pointer is before the first subrecord, it moves to the last subrecord:

         ` Move to the previous subrecord 
  PREVIOUS SUBRECORD ([People]Children) ` If we have gone too far 
  If (Before subselection ([People]Children) ` move to last subrecord
       LAST SUBRECORD ([People]Children)
  End if



See also:  Before selection, LAST SUBRECORD, PREVIOUS SUBRECORD