//Async load of the items
async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
WeatherStations.Clear();
//From the main page we want to always show them all the data
bool succ = await WeatherStationDependency.RefreshWeatherSets(WeatherSet.WeatherSetDateRanges.AllTime);
IEnumerable <WeatherStation> items = await WeatherStationDependency.GetAllWeatherSets(true);
foreach (var item in items)
{
WeatherStations.Add(item);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
public WeatherStationsViewModel()
{
Title = "View Weather";
WeatherStations = new ObservableCollection <WeatherStation>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
//WHen update the config options calls the service
MessagingCenter.Subscribe <DeviceConfigPage, Tuple <string, StationOptions> >(this, "UpdateOptions", async(obj, tup) =>
{
await WeatherStationDependency.UpdateStationOptions(tup.Item2);
await MessengerDependency.UpdateDeviceOptions(tup.Item1, tup.Item2);
});
}
public async Task LoadObservableCollection()
{
IsBusy = true;
bool succ = await WeatherStationDependency.RefreshWeatherSets(WeatherSet.WeatherSetDateRanges.AllTime);
IEnumerable <WeatherStation> items = await WeatherStationDependency.GetAllWeatherSets(true);
_rgSets.Clear();
foreach (var item in items)
{
if (item.StationName == Item.StationName)
{
Item.rgWeatherSets.Clear();
foreach (var weatherSet in item.rgWeatherSets)
{
Item.rgWeatherSets.Add(weatherSet);
}
}
}
await Task.Run(() =>
{
DateTime upperbound = DateTime.Now;
DateTime lowerbound;
try
{
switch (dateRange)
{
case WeatherSet.WeatherSetDateRanges.Today:
lowerbound = upperbound.Date;
break;
case WeatherSet.WeatherSetDateRanges.PastThreeDays:
lowerbound = upperbound.Date.AddDays(-3);
break;
case WeatherSet.WeatherSetDateRanges.PastWeek:
lowerbound = upperbound.Date.AddDays(-7);
break;
case WeatherSet.WeatherSetDateRanges.ThisMonth:
lowerbound = new DateTime(upperbound.Year, upperbound.Month, 1);
break;
case WeatherSet.WeatherSetDateRanges.ThisYear:
lowerbound = new DateTime(upperbound.Year, 1, 1);
break;
default:
lowerbound = DateTime.MinValue;
break;
}
_rgSets.Clear();
foreach (WeatherSet weatherItem in Item.rgWeatherSets)
{
if (weatherItem.RecordedTime <= upperbound.AddMinutes(1) && weatherItem.RecordedTime >= lowerbound)
{
_rgSets.Add(weatherItem);
}
}
RgSets.ClearAndAddRange(_rgSets);
}
catch (Exception ex)
{
Console.WriteLine("Exception during loading station data: " + ex.Message);
}
finally
{
IsBusy = false;
}
});
}
public async Task <StationOptions> GetStationOptions()
{
return(await WeatherStationDependency.GetConfigSetting(Item.StationName));
}
