Hello,

I have 2 comboboxes.
When I choose a country in cboLand I want only the states to show in cboStaat that are associated with the country from cboLand.

I tried the code below but I get all different error messages.
Perhaps you can see something in my code that I missed.

Code:
Public Sub SelectLand()
    Dim adapter As New OleDbDataAdapter("SELECT Land_ID,Land FROM tblLAND", connection)
    Dim table As New DataTable
    adapter.Fill(table)

    With Me.cboLand
      .DataSource = table
      .DisplayMember = "Land"
      .ValueMember = "Land_ID"
      .SelectedIndex = 0
    End With
  End Sub

    Public Sub SelectStaat()
        Dim adapter As New OleDbDataAdapter("SELECT Staat_ID,Staat FROM tblSTAAT WHERE Land_ID = " & Me.cboLand.SelectedItem, connection)
        Dim table As New DataTable
        adapter.Fill(table)


        With Me.cboStaat
            .DataSource = table
            .DisplayMember = "Staat"
            .ValueMember = "Staat_ID"
            .SelectedIndex = 0
        End With
    End Sub
Thanks in advance