How do you set the combo box value to start from empty

See more:

VB

Hi,

Here is my code:

m_dtDelayedDeliveryDays = GetDelayedDeliveryDays()
        cmbDelayedDeliveryDays.SelectedIndex = -1

        For Each dr As DataRow In m_dtDelayedDeliveryDays.Rows
            Me.cmbDelayedDeliveryDays.Items.Add(dr("DeliveryDelayDays"))
        Next
        cmbDelayedDeliveryDays.DataSource = m_dtDelayedDeliveryDays
        cmbDelayedDeliveryDays.DisplayMember = "DeliveryDelayDays"
        cmbDelayedDeliveryDays.ValueMember = "DeliveryDelayDaysID"

        Dim delayID As Integer = m_objUIMgr.DeliveryDelayDaysID

        If delayID > 0 Then


            cmbDelayedDeliveryDays.SelectedIndex = delayID - 1



        End If

        'delayID = Nothing

My combo box has values like 0,3,7...When the form gets loaded it shud display empty.


    End Sub

I am trying to load my combo value from the database. Also i check whether the values are in the database already in the line
Dim delayID As Integer = m_objUIMgr.DeliveryDelayDaysID...This will return 0 if there is no ID stored before.

The above code works fine on retrieving . But when there is no ID in the datatable then my combo box displays by default value 0 instead of empty.Please help.