asp.net radio button ติ๊กดำ <--- ช่วยเข้ามาดูหน่อย อธิบายไม่ถูก แหะๆ

   Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged

        If RadioButton1.Checked = True Then

            RadioButton2.Checked = False

        End If

    End Sub

    Private Sub RadioButton2_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton2.CheckedChanged
        If RadioButton2.Checked = True Then
            RadioButton1.Checked = False

        Else

        End If
    End Sub

<asp:RadioButton id="Radio1" GroupName="sex"
             Text="male"  runat="server"/>
        <br />
<asp:RadioButton id="Radio2" GroupName="sex"
             Text="female"  runat="server"/>