private T GetFromCompositeValue<T>(ApplicationDataCompositeValue value)
{
if (value == null)
{
return default(T);
}
Type concreteType = null;
object serializedType;
if (value.TryGetValue(TypeKey, out serializedType))
{
concreteType = Type.GetType(serializedType.ToString());
}
object serializedData;
if (value.TryGetValue(ValueKey, out serializedData))
{
// We need this if we're trying to deserialize an interface. When being serialized, we saved
// the concrete type. So we deserialize to that, then cast to the requested interface.
if (concreteType != null)
{
return (T)JsonConvert.DeserializeObject(serializedData.ToString(), concreteType);
}
else
{
return JsonConvert.DeserializeObject<T>(serializedData.ToString());
}
}
else
{
return default(T);
}
}
public static LayoutPreferences FromCompositeValue(ApplicationDataCompositeValue compositeValue)
{
var pref = new LayoutPreferences
{
LayoutMode = (FolderLayoutModes)(int)compositeValue[nameof(LayoutMode)],
GridViewSize = (int)compositeValue[nameof(GridViewSize)],
DirectorySortOption = (SortOption)(int)compositeValue[nameof(DirectorySortOption)],
DirectorySortDirection = (SortDirection)(int)compositeValue[nameof(DirectorySortDirection)],
IsAdaptiveLayoutOverridden = compositeValue[nameof(IsAdaptiveLayoutOverridden)] is bool val ? val : false,
};
if (compositeValue.TryGetValue(nameof(DirectoryGroupOption), out var gpOption))
{
pref.DirectoryGroupOption = (GroupOption)(int)gpOption;
}
try
{
pref.ColumnsViewModel = JsonConvert.DeserializeObject <ColumnsViewModel>(compositeValue[nameof(ColumnsViewModel)] as string, new JsonSerializerSettings()
{
NullValueHandling = NullValueHandling.Ignore
});
}
catch (Exception)
{
}
return(pref);
}
public static int GetInt32(this ApplicationDataCompositeValue container, string key, int defaultValue)
{
if (container.TryGetValue(key, out object value) && value is int result)
{
return(result);
}
return(defaultValue);
}
public static bool GetBoolean(this ApplicationDataCompositeValue container, string key, bool defaultValue)
{
if (container.TryGetValue(key, out object value) && value is bool result)
{
return(result);
}
return(defaultValue);
}
private async void Page_LoadedAsync(object sender, RoutedEventArgs e)
{
PageBusy("Loading events from dataset " + _viewModel.Dataset.Name + " ...");
await _viewModel.LoadDataAsync();
PopulateSensors();
DrawSensors();
PopulateAnnotateFlyout();
// Check Application Settings for last saved states. If the state exists and is valid, load the state
ApplicationDataCompositeValue datasetLastSavedStates =
AppSettingsService.RetrieveFromSettings <ApplicationDataCompositeValue>(
"DatasetLastSavedStates", new ApplicationDataCompositeValue()
);
if (datasetLastSavedStates.TryGetValue(_viewModel.Dataset.Name, out object jsonDatasetSavedState))
{
DatasetViewSavedState datasetState = JsonConvert.DeserializeObject <DatasetViewSavedState>((string)jsonDatasetSavedState);
if (datasetState.Day <= _viewModel.LastEventDate && datasetState.Day >= _viewModel.FirstEventDate)
{
await _viewModel.LoadEventsAsync(datasetState.Day);
}
_viewModel.EventViewFilter = datasetState.Filter;
_viewModel.RefreshEventsInView();
if (datasetState.EventTimeTag != null)
{
int i = 0;
for (i = 0; i < _viewModel.EventsInView.Count; i++)
{
SensorEventViewModel sensorEvent = (SensorEventViewModel)_viewModel.EventsInView[i];
if (sensorEvent.TimeTag >= datasetState.EventTimeTag)
{
_viewModel.SelectedSensorEvent = sensorEvent;
break;
}
}
if (i == _viewModel.EventsInView.Count && i != 0)
{
_viewModel.SelectedSensorEvent = (SensorEventViewModel)_viewModel.EventsInView.Last();
}
}
else
{
if (datasetState.EventInView >= 0 && datasetState.EventInView < _viewModel.EventsInView.Count)
{
_viewModel.SelectedSensorEvent = (SensorEventViewModel)dataListView.Items[datasetState.EventInView];
}
}
if (_viewModel.SelectedSensorEvent != null)
{
dataListView.ScrollIntoView(_viewModel.SelectedSensorEvent);
}
}
PageReady();
}