Question

Is there a way to order this silverlight bound ListBox. I am not sure the way I have populated makes it easy?

Code sample here:

  XElement _xml = XElement.Load("MSA.xml");
        {
            msa.Items.Clear();

            foreach (XElement value in _xml.Elements("channel").Elements("msa"))
            {
                MSAFeedItem _item = new MSAFeedItem();
                _item.Lat = double.Parse(value.Element("lat").Value);
                _item.Long = double.Parse(value.Element("long").Value);
                _item.Name = value.Element("n").Value;


 double dis1 = _item.Lat - curLatitude;
                        double dis2 = _item.Long - curLongitude;

                     var miles1 = Math.Pow(dis1, 2.0);
                     var miles2 = Math.Pow(dis2, 2.0);

                     var miles3 = miles1 + miles2;

                     var miles4 = Math.Sqrt(miles3) ;

                     var miles = miles4 * 62.1371192;

                    _item.Distance = Decimal.Truncate(Convert.ToDecimal(miles));

                 msa.Items.Add(_item);

            }
        }

It needs to be in ascending order according to a double or decimal value called ‘miles’
ListBox is called ‘msa’

Many thanks for any help or suggestions.

EDIT: Ive added my distance code to help you understand whats going on, so _item.distance or ‘miles’ is the number it needs to ascend by.
The code is a bit messy and doesnt work exactly rightt but you get the idea.

Answer 1

 XElement _xml = XElement.Load("MSA.xml");
        {
            msa.Items.Clear();
            List<MSAFeedItem> tempItems = new List<MSAFeedItem>();

            foreach (XElement value in _xml.Elements("channel").Elements("msa"))
            {
                MSAFeedItem _item = new MSAFeedItem();
                _item.Lat = double.Parse(value.Element("lat").Value);
                _item.Long = double.Parse(value.Element("long").Value);
                _item.Name = value.Element("n").Value;


                double dis1 = _item.Lat - curLatitude;
                double dis2 = _item.Long - curLongitude;

                     var miles1 = Math.Pow(dis1, 2.0);
                     var miles2 = Math.Pow(dis2, 2.0);

                     var miles3 = miles1 + miles2;

                     var miles4 = Math.Sqrt(miles3) ;

                     var miles = miles4 * 62.1371192;

                    _item.Distance = Decimal.Truncate(Convert.ToDecimal(miles));

                 tempItems.Add(_item);

            }

           tempItems.OrderBy( i => i.Distance).ToList()
                    .ForEach(e => msa.Items.Add(e));

        }