void OnLoaded(object sender, RoutedEventArgs e)
{
Model = new StockDataViewModel(grid);
Model.Resume();
Application.Current.DebugSettings.EnableFrameRateCounter = false;
grid.CustomSummary += grid_CustomSummary;
}
void OnUnloaded(object sender, RoutedEventArgs e)
{
grid.CustomSummary -= grid_CustomSummary;
Model.Unload();
Model = null;
}
