Question : Revert changes back in Rowvalidating event of datagridview

Hi Experts,
I  am using visual studio 2005 and working on Win forms application. I have a datagridview. I prompt the user to save if the data has changed in rowValidating event.
If the user says "yes", everything is fine. But if users says "no", then I manage not to save the data., but I visually also want to remove the changes. how do i revert back the changes? Attached is my code. Any help will be greatly appreciated
 
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Private Sub DataGridView1_RowValidated(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.RowValidated
        Dim lResponse As Long
        If UpdatePending Then
            lResponse = MessageBox.Show("Do you wish to save changes?", "Data has Changed", MessageBoxButtons.YesNo)
            If lResponse = vbYes Then
                Try
                    Dim command_builder As SqlCommandBuilder
                    command_builder = New SqlCommandBuilder(daHotel)
                    Me.daHotel.Update(dsHotel.Tables(0))
                    DataGridView1.Refresh()
                    Me.UpdatePending = False
                Catch ex As Exception
                    MessageBox.Show(ex.Message)
                End Try
            Else
                DataGridView1.Refresh()
                Me.UpdatePending = False
            End If
        Else
            Me.UpdatePending = False
        End If
    End Sub

Answer : Revert changes back in Rowvalidating event of datagridview

also When you are using a dataset ..you can Set .....MyDataset.RejectChanges
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