esa pregunta... Asumo q no trabajas con base de datos.
Cita:
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
Me.ComboBox2.Items.Clear() 'Eliminas los elementos del combobox2 antes de asignar
If Me.ComboBox1.SelectedItem = "A" Then
Me.ComboBox2.Items.Add("1")
Me.ComboBox2.Items.Add("2")
Me.ComboBox2.Items.Add("3")
Me.ComboBox2.Items.Add("4")
End If
If Me.ComboBox1.SelectedItem = "B" Then
Me.ComboBox2.Items.Add("1")
Me.ComboBox2.Items.Add("2")
Me.ComboBox2.Items.Add("3")
Me.ComboBox2.Items.Add("4")
Me.ComboBox2.Items.Add("5")
Me.ComboBox2.Items.Add("6")
Me.ComboBox2.Items.Add("7")
Me.ComboBox2.Items.Add("8")
End If
Me.ComboBox2.Text = "" 'limpias la seleccion
End Sub
bye.