>With Thisform
>  If this.Value <> .F.			&& so no need choose operator
>      .txtOperator.enabled	    = .F.
>      .cboOperators.enabled	    = .F.
>      .lValidOp		    = .T.
>  Else					&& Allow choose an operator
>      .txtOperator.enabled	    = .T.
>      .cboOperators.enabled	    = .T.
>      If not EMPTY( .nOpCode)
>          .lValidOp	    = .T.  	&& already got an operator from previous choice or default
>      Else
>	 .lValidOp	    = .F.
>      EndIf
>  EndIf
>  .lmEnablePrint()
>EndWith
>
>

With Thisform
  If this.Value		            && I hope this.Value is not for CheckBox
    .txtOperator.enabled    = .F.
    .cboOperators.enabled   = .F.
    .lValidOp		    = .T.
  Else					&& Allow choose an operator
      .txtOperator.enabled  = .T.
      .cboOperators.enabled = .T.
      .lValidOp             = NOT EMPTY(.nOpCode.Value)
  EndIf
  .lmEnablePrint()
EndWith