protected virtual void OnDataLoaded(LoadEventArgs e)
{
if (DataLoaded != null)
{
DataLoaded(this, e);
}
}
public void GetData()
{
SessionList = new ObservableCollection <SessionItemModel>();
SpeakerList = new ObservableCollection <SpeakerItemModel>();
DateTime sessionLastDownload = DateTime.MinValue;
// Get the data from Isolated storage if it is there
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
{
var converted = (IsolatedStorageSettings.ApplicationSettings["SessionData"] as IEnumerable <SessionItemModel>);
SessionList = converted.ToObservableCollection(SessionList);
var loadedEventArgs = new LoadEventArgs {
IsLoaded = true, Message = string.Empty
};
OnDataLoaded(loadedEventArgs);
}
// Get the data from Isolated storage if it is there
if (IsolatedStorageSettings.ApplicationSettings.Contains("SpeakerData"))
{
var converted = (IsolatedStorageSettings.ApplicationSettings["SpeakerData"] as IEnumerable <SpeakerItemModel>);
SpeakerList = converted.ToObservableCollection(SpeakerList);
var loadedEventArgs = new LoadEventArgs {
IsLoaded = true, Message = string.Empty
};
OnDataLoaded(loadedEventArgs);
}
// Get the last time the data was downloaded.
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionLastDownload"))
{
sessionLastDownload = (DateTime)IsolatedStorageSettings.ApplicationSettings["SessionLastDownload"];
}
// Check if we need to download the latest data, or if we can just use the isolated storage data
// Cache the data for 2 hours
if ((sessionLastDownload.AddHours(2) < DateTime.Now) || !IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
{
// Download the session data
var sessionWebClient = new SharpGIS.GZipWebClient();
sessionWebClient.DownloadStringCompleted += sessionWebClient_DownloadStringCompleted;
sessionWebClient.DownloadStringAsync(new Uri(Settings.SessionServiceUri));
// Download speaker data
var speakerWebClient = new SharpGIS.GZipWebClient();
speakerWebClient.DownloadStringCompleted += speakerWebClient_DownloadStringCompleted;
speakerWebClient.DownloadStringAsync(new Uri(Settings.SpeakerServiceUri));
}
}
public void GetData()
{
SessionList = new ObservableCollection<SessionItemModel>();
SpeakerList = new ObservableCollection<SpeakerItemModel>();
DateTime sessionLastDownload = DateTime.MinValue;
// Get the data from Isolated storage if it is there
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
{
var converted = (IsolatedStorageSettings.ApplicationSettings["SessionData"] as IEnumerable<SessionItemModel>);
SessionList = converted.ToObservableCollection(SessionList);
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
OnDataLoaded(loadedEventArgs);
}
// Get the data from Isolated storage if it is there
if (IsolatedStorageSettings.ApplicationSettings.Contains("SpeakerData"))
{
var converted = (IsolatedStorageSettings.ApplicationSettings["SpeakerData"] as IEnumerable<SpeakerItemModel>);
SpeakerList = converted.ToObservableCollection(SpeakerList);
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
OnDataLoaded(loadedEventArgs);
}
// Get the last time the data was downloaded.
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionLastDownload"))
{
sessionLastDownload = (DateTime)IsolatedStorageSettings.ApplicationSettings["SessionLastDownload"];
}
// Check if we need to download the latest data, or if we can just use the isolated storage data
// Cache the data for 2 hours
if ((sessionLastDownload.AddHours(2) < DateTime.Now) || !IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
{
// Download the session data
var sessionWebClient = new SharpGIS.GZipWebClient();
sessionWebClient.DownloadStringCompleted += sessionWebClient_DownloadStringCompleted;
sessionWebClient.DownloadStringAsync(new Uri(Settings.SessionServiceUri));
// Download speaker data
var speakerWebClient = new SharpGIS.GZipWebClient();
speakerWebClient.DownloadStringCompleted += speakerWebClient_DownloadStringCompleted;
speakerWebClient.DownloadStringAsync(new Uri(Settings.SpeakerServiceUri));
}
}
void speakerWebClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
try
{
var deserialized = Newtonsoft.Json.JsonConvert.DeserializeObject<List<SpeakerResponse>>(e.Result);
{
var converted = (from s in deserialized
orderby s.Last
select new SpeakerItemModel
{
Id = s.Id,
Bio = StripHtmlTags(s.Bio ?? ""),
FirstName = s.First,
LastName = s.Last,
PictureUrl = s.Photo,
//Build specific
SessionIds = (s.SessionIds != null ? s.SessionIds.ToObservableCollection() : null),
}).ToList();
// Display the data on the screen ONLY if we didn't already load from the cache
// Don't bother about rebinding everything, just wait until the user launches the next time.
if (SpeakerList.Count < 1)
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
SpeakerList = converted.ToObservableCollection(SpeakerList);
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
OnDataLoaded(loadedEventArgs);
});
// Make sure the sessions are online before caching
if (converted.Count > 1)
{
// Save the results into the cache.
// First save the data
if (IsolatedStorageSettings.ApplicationSettings.Contains("SpeakerData"))
IsolatedStorageSettings.ApplicationSettings.Remove("SpeakerData");
IsolatedStorageSettings.ApplicationSettings.Add("SpeakerData", converted);
// then update the last updated key
if (IsolatedStorageSettings.ApplicationSettings.Contains("SpeakerLastDownload"))
IsolatedStorageSettings.ApplicationSettings.Remove("SpeakerLastDownload");
IsolatedStorageSettings.ApplicationSettings.Add("SpeakerLastDownload", DateTime.Now);
IsolatedStorageSettings.ApplicationSettings.Save(); // trigger a save
}
}
}
catch (WebException)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
var loadedEventArgs = new LoadEventArgs { IsLoaded = false, Message = "There was a network error. Close the app and try again." };
OnDataLoaded(loadedEventArgs);
System.Windows.MessageBox.Show("There was a network error. Close the app and try again.");
});
}
catch (Exception ex)
{
throw;
}
}
void sessionWebClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
try
{
var deserialized = Newtonsoft.Json.JsonConvert.DeserializeObject<List<SessionsResponse>>(e.Result);
{
DateTime tempTime;
var converted = (from s in deserialized
orderby s.Code
select new SessionItemModel
{
Id = s.Id,
Code = s.Code,
Title = s.Title,
Description = StripHtmlTags(s.Description),
Location = s.Room,
Date = (DateTime.TryParse(s.Starts, out tempTime) ? DateTime.Parse(s.Starts) : DateTime.MinValue),
//Speakers = s.Speakers.Select(p => new SpeakerItemModel { Id = p.SpeakerId, FirstName = p.First, LastName = p.Last, PictureUrl = p.SmallImage }).ToObservableCollection()
//Build specific
SpeakerIds = (s.SpeakerIds != null ? s.SpeakerIds.ToObservableCollection() : null),
Link = s.Link,
SlidesUri = s.Slides,
Thumbnail = s.ThumbnailImage,
WmvUri = s.Wmv,
}).ToList();
// Display the data on the screen ONLY if we didn't already load from the cache
// Don't bother about rebinding everything, just wait until the user launches the next time.
if (SessionList.Count < 1)
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
SessionList = converted.ToObservableCollection(SessionList);
//SpeakerList = SessionList.SelectMany(p => p.Speakers).Distinct().OrderBy(p => p.SurnameFirstname).ToObservableCollection(SpeakerList);
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
OnDataLoaded(loadedEventArgs);
});
// Make sure the sessions are online before caching
if (converted.Count > 1)
{
// Save the results into the cache.
// First save the data
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
IsolatedStorageSettings.ApplicationSettings.Remove("SessionData");
IsolatedStorageSettings.ApplicationSettings.Add("SessionData", converted);
// then update the last updated key
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionLastDownload"))
IsolatedStorageSettings.ApplicationSettings.Remove("SessionLastDownload");
IsolatedStorageSettings.ApplicationSettings.Add("SessionLastDownload", DateTime.Now);
IsolatedStorageSettings.ApplicationSettings.Save(); // trigger a save
}
else
SessionsAreNotOnlineYet = true;
}
}
catch (WebException ex)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
var loadedEventArgs = new LoadEventArgs { IsLoaded = false, Message = "There was a network error. Close the app and try again." };
OnDataLoaded(loadedEventArgs);
System.Windows.MessageBox.Show("There was a network error. Close the app and try again.");
});
}
catch (Exception ex)
{
throw;
}
}
protected virtual void OnDataLoaded(LoadEventArgs e)
{
if (DataLoaded != null)
{
DataLoaded(this, e);
}
}
void Service_DataLoaded(object sender, LoadEventArgs e)
{
this.IsDataLoaded = e.IsLoaded;
IsLoading = false;
}
void speakerWebClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
try
{
var deserialized = Newtonsoft.Json.JsonConvert.DeserializeObject <List <SpeakerResponse> >(e.Result);
{
var converted = (from s in deserialized
orderby s.Last
select new SpeakerItemModel
{
Id = s.Id,
Bio = StripHtmlTags(s.Bio ?? ""),
FirstName = s.First,
LastName = s.Last,
PictureUrl = s.Photo,
//Build specific
SessionIds = (s.SessionIds != null ? s.SessionIds.ToObservableCollection() : null),
}).ToList();
// Display the data on the screen ONLY if we didn't already load from the cache
// Don't bother about rebinding everything, just wait until the user launches the next time.
if (SpeakerList.Count < 1)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
SpeakerList = converted.ToObservableCollection(SpeakerList);
var loadedEventArgs = new LoadEventArgs {
IsLoaded = true, Message = string.Empty
};
OnDataLoaded(loadedEventArgs);
});
}
// Make sure the sessions are online before caching
if (converted.Count > 1)
{
// Save the results into the cache.
// First save the data
if (IsolatedStorageSettings.ApplicationSettings.Contains("SpeakerData"))
{
IsolatedStorageSettings.ApplicationSettings.Remove("SpeakerData");
}
IsolatedStorageSettings.ApplicationSettings.Add("SpeakerData", converted);
// then update the last updated key
if (IsolatedStorageSettings.ApplicationSettings.Contains("SpeakerLastDownload"))
{
IsolatedStorageSettings.ApplicationSettings.Remove("SpeakerLastDownload");
}
IsolatedStorageSettings.ApplicationSettings.Add("SpeakerLastDownload", DateTime.Now);
IsolatedStorageSettings.ApplicationSettings.Save(); // trigger a save
}
}
}
catch (WebException)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
var loadedEventArgs = new LoadEventArgs {
IsLoaded = false, Message = "There was a network error. Close the app and try again."
};
OnDataLoaded(loadedEventArgs);
System.Windows.MessageBox.Show("There was a network error. Close the app and try again.");
});
}
catch (Exception ex)
{
throw;
}
}
void sessionWebClient_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
try
{
var deserialized = Newtonsoft.Json.JsonConvert.DeserializeObject <List <SessionsResponse> >(e.Result);
{
DateTime tempTime;
var converted = (from s in deserialized
orderby s.Code
select new SessionItemModel
{
Id = s.Id,
Code = s.Code,
Title = s.Title,
Description = StripHtmlTags(s.Description),
Location = s.Room,
Date = (DateTime.TryParse(s.Starts, out tempTime) ? DateTime.Parse(s.Starts) : DateTime.MinValue),
//Speakers = s.Speakers.Select(p => new SpeakerItemModel { Id = p.SpeakerId, FirstName = p.First, LastName = p.Last, PictureUrl = p.SmallImage }).ToObservableCollection()
//Build specific
SpeakerIds = (s.SpeakerIds != null ? s.SpeakerIds.ToObservableCollection() : null),
Link = s.Link,
SlidesUri = s.Slides,
Thumbnail = s.ThumbnailImage,
WmvUri = s.Wmv,
}).ToList();
// Display the data on the screen ONLY if we didn't already load from the cache
// Don't bother about rebinding everything, just wait until the user launches the next time.
if (SessionList.Count < 1)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
SessionList = converted.ToObservableCollection(SessionList);
//SpeakerList = SessionList.SelectMany(p => p.Speakers).Distinct().OrderBy(p => p.SurnameFirstname).ToObservableCollection(SpeakerList);
var loadedEventArgs = new LoadEventArgs {
IsLoaded = true, Message = string.Empty
};
OnDataLoaded(loadedEventArgs);
});
}
// Make sure the sessions are online before caching
if (converted.Count > 1)
{
// Save the results into the cache.
// First save the data
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
{
IsolatedStorageSettings.ApplicationSettings.Remove("SessionData");
}
IsolatedStorageSettings.ApplicationSettings.Add("SessionData", converted);
// then update the last updated key
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionLastDownload"))
{
IsolatedStorageSettings.ApplicationSettings.Remove("SessionLastDownload");
}
IsolatedStorageSettings.ApplicationSettings.Add("SessionLastDownload", DateTime.Now);
IsolatedStorageSettings.ApplicationSettings.Save(); // trigger a save
}
else
{
SessionsAreNotOnlineYet = true;
}
}
}
catch (WebException ex)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
var loadedEventArgs = new LoadEventArgs {
IsLoaded = false, Message = "There was a network error. Close the app and try again."
};
OnDataLoaded(loadedEventArgs);
System.Windows.MessageBox.Show("There was a network error. Close the app and try again.");
});
}
catch (Exception ex)
{
throw;
}
}
public async void GetData()
{
SessionList = new ObservableCollection<SessionItemModel>();
SpeakerList = new ObservableCollection<SpeakerItemModel>();
DateTime sessionLastDownload = DateTime.MinValue;
// Get the data from Isolated storage if it is there
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
{
var converted = (IsolatedStorageSettings.ApplicationSettings["SessionData"] as IEnumerable<SessionItemModel>);
SessionList.Clear();
converted.ToList().ForEach(p => SessionList.Add(p));
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
OnDataLoaded(loadedEventArgs);
}
if (IsolatedStorageSettings.ApplicationSettings.Contains("SpeakerData"))
{
var converted = (IsolatedStorageSettings.ApplicationSettings["SpeakerData"] as IEnumerable<SpeakerItemModel>);
SpeakerList.Clear();
converted.OrderBy(p => p.SurnameFirstname).ToList().ForEach(p => SpeakerList.Add(p));
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
OnDataLoaded(loadedEventArgs);
}
// Get the last time the data was downloaded.
if (IsolatedStorageSettings.ApplicationSettings.Contains("SessionLastDownload"))
{
sessionLastDownload = (DateTime)IsolatedStorageSettings.ApplicationSettings["SessionLastDownload"];
}
// Check if we need to download the latest data, or if we can just use the isolated storage data
// Cache the data for 2 hours
if ((sessionLastDownload.AddHours(2) < DateTime.Now) || !IsolatedStorageSettings.ApplicationSettings.Contains("SessionData"))
{
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
// Download the data
try
{
var feedString = await TechEd2013ConferenceFeed.GetFeed();
ParseSessions(feedString);
ParseSpeakers(feedString);
}
catch (WebException)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
loadedEventArgs = new LoadEventArgs { IsLoaded = false, Message = "There was a network error. Close the app and try again." };
OnDataLoaded(loadedEventArgs);
System.Windows.MessageBox.Show("There was a network error. Close the app and try again.");
});
}
catch (Exception ex)
{
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
loadedEventArgs = new LoadEventArgs { IsLoaded = false, Message = ex.Message };
OnDataLoaded(loadedEventArgs);
System.Windows.MessageBox.Show(ex.Message);
});
}
finally
{
OnDataLoaded(loadedEventArgs);
}
}
}
private void ParseSessions(string conferenceFeed)
{
var sessions = TechEd2013ConferenceFeed.ExtractSessions(conferenceFeed);
// Display the data on the screen ONLY if we didn't already load from the cache
// Don't bother about rebinding everything, just wait until the user launches the next time.
if (SessionList.Count < 1)
System.Windows.Deployment.Current.Dispatcher.BeginInvoke(() =>
{
SessionList.Clear();
sessions.ToList().ForEach(p => SessionList.Add(p));
var loadedEventArgs = new LoadEventArgs { IsLoaded = true, Message = string.Empty };
OnDataLoaded(loadedEventArgs);
});
// Save the results into the cache.
SaveListToIsolatedStorage("SessionData", sessions);
}
