title: vbnet multiple combobox fill with one dataset
body: <p>i have the following code to fill two comboboxes using one dataset:</p>
  
  <pre><code>Private Sub sub_cbo_type_load()
      Dim ds As New DataSet
      ds = cls.cbo_type()
      If ds IsNot Nothing _
      AndAlso ds.Tables.Count &gt; 0 _
      AndAlso ds.Tables(0).Rows.Count &gt; 0 Then
          Me.r_cbo_type.DataSource = ds.Tables(0)
          Me.r_cbo_type.DisplayMember = "desc"
          Me.r_cbo_type.ValueMember = "code"
          Me.r_cbo_type.SelectedIndex = -1
          Me.m_cbo_type.DataSource = ds.Tables(0)
          Me.m_cbo_type.DisplayMember = "desc"
          Me.m_cbo_type.ValueMember = "code"
          Me.m_cbo_type.SelectedIndex = -1
      End If
  End Sub
  </code></pre>
  
  <p>the problems is: whenever the index is changed in one combobox, it's automatically changed in the other one too.</p>
  
  <p>does anyone know how can i solve this?</p>
  
  <p>thanks for your time.</p>