I'm trying to use the settings class of my C# project to save an ArrayList
of my class SyncSystem.  I have added the ArrayList using the settings
dialog with user scope.  What happens is that when I save the settings,
everything works great.  But when I close the application then start it up
again, the saved data is no longer there, the ArrayList is null.  I check
this by adding this to fMain:

           if (SFS.Properties.Settings.Default.SyncSystems == null)
           {
               MessageBox.Show("null");
               SFS.Properties.Settings.Default.SyncSystems = new
System.Collections.ArrayList();
           }

What am I doing wrong?  Is my class not serializable?  An ArrayList is
serializable, right?

here is the save code:

               SyncSystem ss = new SyncSystem();
               ss.name = tbName.Text;
               ss.source = comboDir.Text;
               ss.destination = comboDir.Text;
               ss.recurse = chkRecurse.Checked;
               ss.mode = SyncSystem.syncMode.echo;

               SFS.Properties.Settings.Default.SyncSystems.Add(ss);
               SFS.Properties.Settings.Default.Save();  // doesnt save
after program closed

               foreach (SyncSystem s in
SFS.Properties.Settings.Default.SyncSystems)
                   MessageBox.Show(s.name);

here is the class:

   public class SyncSystem
   {
       public enum syncMode
       {
           echo,
           equalize,
           mirror
       }

       private string _name;
       private string _source;
       private string _destination;
       private syncMode _mode;
       private bool _recurse;

       public SyncSystem()
       {
           _name = "";
           _source = "";
           _destination = "";
           _recurse = false;
           _mode = syncMode.mirror;
       }

       public SyncSystem(string name,
           string source,
           string destination,
           bool recurse,
           syncMode mode)
       {
           _name = name;
           _source = source;
           _destination = destination;
           _recurse = recurse;
           _mode = mode;
       }

       public string name
       {
           get{ return _name; }
           set{ _name = value; }
       }

       public string source
       {
           get { return _source; }
           set { _source = value; }
       }

       public string destination
       {
           get { return _destination; }
           set { _destination = value; }
       }

       public bool recurse
       {
           get { return _recurse; }
           set { _recurse = value; }
       }

       public syncMode mode
       {
           get { return _mode; }
           set { _mode = value; }
       }
   }