I've been looking for a VFP function or a UDF that will allow me to determine if an object's control source refers to either a column in a cursor/table or to a memory variable. If it refers to a column I need to do a REPLACE command to update the column. If it refers to a memory variable I need to replace the value in the variable. Something like this is what I'm looking for:

IF OBJTYPE(Object.ControlSource) = 'C'
REPLACE (Object.ControlSource) WITH ltNewDateTime
ELSE
STORE ltNewDateTime TO (Object.ControlSource)
ENDIF

Thanks!!!
Jim