e.Success = False not working.

[Lisseth]

This is my code to validate that if I enter incorrect values in column 1 and column2 of a gridpanel, these are erased and present a message. but it does not work:

Protected Sub grd1_AfterEdit(ByVal sender As Object, ByVal e As DirectEventArgs)
        Dim Column1 As String = e.ExtraParams("column1")
        Dim Column2 As String = e.ExtraParams("column2")

        If Column1 <> "" And Column2 <> "" Then
            If Validate1 = True Then
               e.Success = False
               cls.ShowMessage("Test", "Erro1.", MessageBox.Button.OK, MessageBox.Icon.INFO)
            ElseIf Validate2 = False Then
                e.Success = False
                clsl.ShowMessage("Test", "Error2.", MessageBox.Button.OK, MessageBox.Icon.INFO)
            End If
        End If
    End Sub

<AfterEdit OnEvent="grdDevolucion_AfterEdit"
                               Before="return (e.field == 'column1' || e.field == 'column2);"
Failure="e.record.set('column1',''); e.record.set('column2','');">
                        <ExtraParams>
                            <ext:Parameter Name="column1" Value="e.record.data.column1" Mode="Raw" ></ext:Parameter>
                            <ext:Parameter Name="column2" Value="e.record.data.column2" Mode="Raw" ></ext:Parameter>
                        </ExtraParams>
                    </AfterEdit>

Regards.

[Lisseth]

Basically the problem is that if I comment this line e.Success = False the message is presented, and if I comment the line of message, the fields are cleared, but I need to be deleted if they are incorrect and submitted the message.

[Lisseth]

Please your urgent assistance...