RIUPDATE Procedure
Expand/Collapse source code of procedure RIUPDATE Source Code
lparameters tcFieldName,tcNewValue,tcCascadeParent
local llRetVal
llRetVal=.t.
 IF ISRLOCKED() OR !RLOCK()
    llRetVal=.F.
  ELSE
    IF EVAL(tcFieldName)<>tcNewValue
      PRIVATE pcCascadeParent
      pcCascadeParent=upper(iif(type("tcCascadeParent")<>"C","",tcCascadeParent))
      REPLACE (tcFieldName) WITH tcNewValue
      llRetVal=pnerror=0
    ENDIF values don't already match
  ENDIF it's locked already, or I was able to lock it
  UNLOCK RECORD (RECNO())
return llRetVal