asp.net - OrderByDescending isn't working C# -

i'm trying bind sorted list(desc) radiobuttonlist control. isn't working. list gets bound in ascending order.

aspx:

<asp:radiobuttonlist id="rbl" runat="server"  appenddatabounditems="true"  datatextfield="optiontext" datavaluefield="value">                                         </asp:radiobuttonlist>  

c#:

list<options> lst = getlist(); rbl.datasource = (lst.findall(x => x.qid == 5)).orderbydescending(x => x.value).tolist(); rbl.databind();  public class option {     private int _qid;     public int qid     {         { return _qid; }         set { _qid = value; }     }      private string _optiontext;     public string optiontext     {         { return _optiontext; }         set { _optiontext = value; }     }      private int? value;     public int? value     {         { return _value; }         set { _value = value; }     } } 

i'm pretty sure has using appenddatabounditems="true". if want append new items consider adding them

foreach(var item in (lst.findall(x => x.qid == 5)).orderbydescending(x => x.value)) {     lst.items.insert(0, new listitem(item.optiontext, item.qid)); } 

not beauty, @ least you're in control. otherwise consider creating datatable , use datasource.

note: found related problem here