I am using radiobutton list with 3 list item, after select one list item its only take null value in database
<asp:RadioButtonList ID="rdltype" runat="server" DataTextField="Type" DataValueField="Type" RepeatDirection="Horizontal" CssClass="spaced"
Style="font-weight: 700" >
<asp:ListItem> ls1</asp:ListItem>
<asp:ListItem>ls2</asp:ListItem>
<asp:ListItem>ls3</asp:ListItem>
</asp:RadioButtonList>
cmd.Parameters.AddWithValue("@FarmerType", rdltype.SelectedItem.Text);