Alright, you've cut down my code a bit :-)

But what do you mean by && I hope this.Value is not for CheckBox ?

And still noone's answeered how/why the checkbox changes its data type.


>>But I've still got to test for 1/0 or T/F, as below:
>>
>>

>>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
>