vb.net中怎样在代码中向combobox赋值，

添加项: ComboBox1.Items.Add("123")

直接赋值: ComboBox1.Text = "123"

======================
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
For i = 1 To 10
ComboBox1.Items.Add("添加项：" & i)
ComboBox2.Items.Add("添加项：" & i)
Next

End Sub

Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
ComboBox2.SelectedIndex = ComboBox1.SelectedIndex
End Sub

添加项: ComboBox1.Items.Add("123")
ComboBox2.Items.Add("123")
查看：　 ComboBox2.SelectedItem="123"

通过combobox1的改变事件onchangeselected（）改变bombobox2的值