How to get each rows radio button value from data list?

[Abhishek Nayak]

I want to put some questions with a data list view with multiple choice radio button so how to get each question answer or checked radio button value from list?
i have this asp code:

<asp:DataList ID="DataList1" runat="server" BackColor="White"
            BorderColor="#CC9966" BorderStyle="None" BorderWidth="1px" CellPadding="4" 
            DataKeyField="Qno" DataSourceID="SqlDataSource1" GridLines="Horizontal" 
            HorizontalAlign="Center" Font-Bold="False" Font-Italic="False" 
            Font-Overline="False" Font-Size="Larger" Font-Strikeout="False" 
            Font-Underline="False">
            <EditItemStyle HorizontalAlign="Left" />
            <FooterStyle BackColor="#FFFFCC" ForeColor="#330099" />
            <HeaderStyle BackColor="#990000" Font-Bold="True" ForeColor="#FFFFCC" />
            <ItemStyle BackColor="White" ForeColor="#330099" />
            <ItemTemplate>
                Qno:
                <asp:Label ID="QnoLabel" runat="server" Text='<%# Eval("Qno") %>' />
                <br />
                Question:
                <asp:Label ID="QuestionLabel" runat="server" Text='<%# Eval("Question") %>' />
                <br />
                Ans1:
                <asp:RadioButton ID="RadioButton1" GroupName="gp" Text='<%# Eval("Ans1") %>' runat="server" />
                <br />
                Ans2:
                <asp:RadioButton ID="RadioButton2" GroupName="gp" runat="server" Text='<%# Eval("Ans2") %>' />
                <br />
                Ans3:
                <asp:RadioButton ID="RadioButton3" GroupName="gp" runat="server" Text='<%# Eval("Ans3") %>' />
                <br />
                Ans4:
                <asp:RadioButton ID="RadioButton4" GroupName="gp" runat="server" Text='<%# Eval("Ans4") %>' />
                <br />
                Answer:
                <asp:Label ID="AnswerLabel" runat="server" Text='<%# Eval("Answer") %>' />
                <br />
                <br />
            </ItemTemplate>
            <SelectedItemStyle BackColor="#FFCC66" Font-Bold="True" ForeColor="#663399" />
            <SeparatorStyle Font-Bold="True" Font-Italic="False" Font-Overline="False" 
                Font-Strikeout="False" Font-Underline="False" HorizontalAlign="Right" />
        </asp:DataList>

Any help will be highly appreciated.