Problem using DataGridView Control of VB.NET 2008

Question

Hi,

I am using VB.NET 2008 based on Framework 3.5

I use a datagridview control on a form and the form's load event as follows:

Private Sub frmServiceSettings_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load  
  With dgvFinishedProduct  
    Dim myCombo As New DataGridViewComboBoxColumn  
    ... I generate the combo here from the result of my database
    .Columns.Add(myCombo)
  End With
End Sub

Now when i want to get the data that is set in this column, there is no problem. But if I want to set the data programmatically, there arises problem.

How can I solve the problem? If you want more info, please let me know.