dropdownlist sort

can we sort dropdownlike below.
<asp:DropDownList ID="ddlTest" runat="server"  AppendDataBoundItems="True"> </asp:DropDownList>
protected void Page_Load(object sender, EventArgs e)
    {  foreach (var a in apps) {
                ddlTest.Items.Add(new ListItem(a.Name));      
            }
ddlTest.sort();
        }
...