Liew,

>Even I have done the child obj registration, it will just show the warning message in the last tab where the user saves the record, but I would prefer to display the warning message for the invalid entry in the respective tab. So the validation will be done for each tab when the tab index is changed. Currently I'm using the following function for my validations. Is there a better way to do so? Thanks.
>
>

>            saveResult = Me.oAddress.Rules.CheckRules(Me.oAddress.DataSet, Me.oAddress.TableName, True)
>
>            Select Case saveResult
>                Case mmSaveDataResult.RulesPassed
>                    Return True
>                Case mmSaveDataResult.Exception
>                    ' Do something
>                    Return False
>                Case Else
>                    ' Do something
>                    Return False
>             End Select
>

Yes, there is a better way. If you call CheckRules() directly on the business object, it will automatically call CheckRules() on all child business objects and bubble all errors up to the parent business object. However, the mmBusinessObject.CheckRules() method is protected, so you need to create a public wrapper method on ABusinessObject in order to call this method directly. For example:

Public Function CallCheckRules() As mmSaveDataResult
    Return Me.CheckRules(Me, Me.DataSet, Me.TableName)
End Function

Best Regards,