Record count not being incremented,

Public Sub DoAddnew()
        Dim bm As BindingManagerBase = Me.DataGrid1.BindingContext(Me.DataGrid1.DataSource, Me.DataGrid1.DataMember)
        Dim dr As DataRow = CType(bm.Current, DataRowView).Row
        Dim addform As New AddTransOverride(dr)
        Dim retval As DialogResult = addform.ShowDialog()
        If retval = DialogResult.OK Then
            bm.EndCurrentEdit()
            Try
                Dim substr As String = dr.Item(4)
                If substr Is System.DBNull.Value Then
                    substr = ""
                End If
                If Not substr = "" Then
                    substr = substr.Substring(0, 2)
                End If
                ExecOnTransOverride.ins(dr.Item(1), dr.Item(2), dr.Item(3), substr, dr.Item(5), dr.Item(6), dr.Item(8), dr.Item(7), DateTime.Now, dr.Item(7), dr.Item(9))
                MsgBox("Data Inserted Successfully !", MsgBoxStyle.Information, Me.Text)
                Me.lbNumRec.Text = dv.Count.ToString()
            Catch se As SqlException
                MessageBox.Show(se.Message)
            Catch ex As Exception
                MessageBox.Show(ex.Message)
            End Try
        Else
            bm.CancelCurrentEdit()
        End If

    End Sub
This is not incrementing the count label Me.lbNumRec.Text = dv.Count.ToString()