Question

I have a dropdownlist in my asp.net page

<asp:RadioButtonList ID="rdblstcookinglevel" runat="server" CellPadding="0" 
    CellSpacing="0" >
    <asp:ListItem>Novice</asp:ListItem>
    <asp:ListItem>Beginner</asp:ListItem>
    <asp:ListItem>Intermediate</asp:ListItem>
    <asp:ListItem>Expert</asp:ListItem>
    <asp:ListItem>Professional</asp:ListItem>
</asp:RadioButtonList>

On Page load, the selectedvalue is set based on the value that comes from database.

rdblstcookinglevel.SelectedValue = user.CookingLevel;

But when on the page user changes selection, the selectedindex does not change, so the old selected value is sent back to database.

User.CookingLevel = rdblstcookinglevel.SelectedValue;

Answer 1

Make sure the setting of the SelectedValue is only done on the first load of the page – and not done on the post back, i.e…

if(!Page.IsPostBack)
{
  rdblstcookinglevel.SelectedValue = user.CookingLevel;
}