RadioButtonList Selected Value=0

[shahanaj]

I've a radioButtion list, Which selected value always remain 0,How can I get actual value.
The feagure of RadioButtonList is

<asp:RadioButtonList ID="AcademicSemesterRadioButtonList" runat="server"
RepeatDirection="Horizontal" AutoPostBack="True"
onselectedindexchanged="AcademicSemesterRadioButto nList_SelectedIndexChanged">
<asp:ListItem Value="1">1 st Semester</asp:ListItem>
<asp:ListItem Value="2">2 nd Semester</asp:ListItem>
<asp:ListItem Value="3">3 rd Semester</asp:ListItem>
</asp:RadioButtonList>

[Plater]

Auto postback means it will fire everytime you change the selected radio button.

What do you see in the AcademicSemesterRadioButto nList_SelectedIndexChanged function?