protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
string fieldIdValue = NavigationContext.QueryString["parameter"];
int fieldId = Int16.Parse(fieldIdValue);
// Load Field data
GetFieldByIdCompleted handler = new GetFieldByIdCompleted(LoadFieldById);
FieldModel fieldModel = new FieldModel();
fieldModel.GetFieldById(new Action<FieldModel>(handler), fieldId);
// Load Maps ids
GetMapidsCompleted mapIdsHandler = new GetMapidsCompleted(LoadMapIds);
MapFieldModel mfModel = new MapFieldModel();
mfModel.GetMapIds(new Action<List<int>>(mapIdsHandler), fieldId);
}
