How to use radiobuttonlist value to show data from database

Question

Asp.net C# 

in my database, i have 4 tables 

i have to use RadioButtonList and select one of the items. 

- annualleave

- emergencyleave

- medicalleave 

- maternityleave

- specialleave

 

 i need to show the table of the data in a link of another page.

please help, im out of ideas. 

 

 

<asp:RadioButtonList ID="RDB" runat="server" 

        onselectedindexchanged="RDB_SelectedIndexChanged" Selected="True">

            <asp:ListItem Value="al">annual leave</asp:ListItem>

            <asp:ListItem Value="el">emergency leave</asp:ListItem>

           <asp:ListItem Value="ml">medical leave</asp:ListItem>

            <asp:ListItem Value="mal">maternity leave</asp:ListItem>

            <asp:ListItem Value="sl">special leave</asp:ListItem>

        </asp:RadioButtonList>