public ColumnsSettingsProvider()
 {
     _algorithm = new RijndaelManaged();
     _hashAlgorithm = new SHA384Managed();
     _storage = CompositionManager.Get<IStorage>();
     SetDocument(_storage.CombineDocumentsFullPath("Saved Columns.mtcolumns"));
         //store this somewhere more visible to the end user, and easily transported from device to device
 }