specified argument was out of the range of valid values parameter name : rowindex when press esc VB.

Dear Sir,

I have error "specified argument was out of the range of valid values parameter name : rowindex when press esc in keyboard after type in column m_product in VB.NET

Please Guide me

Thanks

Imports System.ComponentModel
Imports System.Reflection

Public Class Form2
    Private list As BindingList(Of InvoicesDetailtest) = Nothing
    Private BindingSource1 As BindingSource = Nothing
    Public Sub New()

        ' This call is required by the designer.
        InitializeComponent()

        ' Add any initialization after the InitializeComponent() call.
        ' To reduce the flickering...
        DataGridView1.GetType().
    GetProperty("DoubleBuffered",
                BindingFlags.Instance Or BindingFlags.NonPublic).
    SetValue(DataGridView1, True)
        updateDataSource()
        'Datagridview1.Focus()
    End Sub
    Private Sub updateDataSource()

        ' Our collection holding products
        list = New BindingList(Of InvoicesDetailtest)()
        ' Create our medium between grid and collection
        BindingSource1 = New BindingSource With {.DataSource = list}
        DataGridView1.DataSource = BindingSource1
        DataGridView1.AutoGenerateColumns = False
        DataGridView1.AllowUserToAddRows = False
        BindingSource1.AddNew()
    End Sub
End Class
Public Class InvoicesDetailtest


    Public Property m_product() As String

    Public Property Qty() As Integer
End Class