private static IsolatedStorageDatabase getDatabaseFromIsolatedStorage()
{
IsolatedStorageDatabase database = null;
try
{
using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Assembly, null, null))
{
using (var iStreamForEndpoint = new IsolatedStorageFileStream(_isolatedStorageDatabaseFileName, FileMode.Open, isoStore))
{
using (var readerForEndpoint = new StreamReader(iStreamForEndpoint))
{
var json = readerForEndpoint.ReadToEnd();
database = JsonConvert.DeserializeObject <IsolatedStorageDatabase>(json, new JsonSerializerSettings {
Error = deserialiseErrorEventHandler
});
}
}
}
}
catch (FileNotFoundException)
{
database = null;
}
return(database);
}
public static void saveDatabaseToIsolatedStorage(IsolatedStorageDatabase database)
{
using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Assembly, null, null))
{
using (var oStream = new IsolatedStorageFileStream(_isolatedStorageDatabaseFileName, FileMode.Create, isoStore))
{
using (var writer = new StreamWriter(oStream))
{
writer.Write(JsonConvert.SerializeObject(database));
}
}
}
}
public static IsolatedStorageDatabase GetInstance()
{
if (_db == null)
{
_db = getDatabaseFromIsolatedStorage();
}
if (_db == null)
{
var d = new IsolatedStorageDatabase();
d.People = new List <Person>();
d.PictureFiles = new List <PictureFile>();
d.PictureFileGroupLookups = new List <PictureFileGroupLookup>();
d.PicturePersons = new List <PicturePerson>();
_db = d;
saveDatabaseToIsolatedStorage(d);
}
return(_db);
}
