I have a combo box with a list of my customers, when a user selects a customer i
have the customer code populate a label called LBcustomer.

here is how i populate my combo box

Dim connString As String = "Data Source=" & ServerV & ";Initial Catalog=" & databaseV & ";Persist Security Info=True;User ID=" & usernameV & ";Password=" & passwordV & ""
        Dim conn As New SqlConnection(connString)
        Dim strSQL As String = "Select Customer,Name From ArCustomer where Salesperson=" & Me.LBASM.Text & ""
        Dim DA As New SqlDataAdapter(strSQL, conn)
        Dim dt As New DataTable        'Populate the datatable     
        DA.Fill(dt)        'Bind the stock datatable to the combobox     
        With CBOCustomer
            .DropDownStyle = ComboBoxStyle.DropDownList
            .DataSource = dt
            .DisplayMember = "Name"
            .ValueMember = "Customer"

        End With

i also have

Private Sub CBOCustomer_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CBOCustomer.SelectedIndexChanged
        Me.LBCustomer.Text = Me.CBOCustomer.SelectedValue.ToString
          End Sub

this populate the label, but when first run, the label says
(see the pic below)
when i use the combo and select a customer it then populates the customer code in the
label. it only does this the first time the code is run. how can i make this label blank or input a number I.E "0"?

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Can you explain where will you be getting the customer code from? You want to make the customer code to appear once and then after that leave it blank?

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Put your code in the SelectedValueChanged event instead of the SelectedIndexChanged event: since you are using the SelectedValue.

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