private async void btnSubmit_Click(object sender, RoutedEventArgs e)
{
Record r;
if (!await CheckFormInput())
{
MessageDialog dialog = new MessageDialog("Please Ensure All Fields Are Filled");
await dialog.ShowAsync();
return;
}
r = await CreateRecord();
if (r == null)
{
Debug.WriteLine("An Error occurred while creating the record");
return;
}
if (!await ReadRecordData() || records == null)
{
Debug.WriteLine("No records found");
records = RecordList.GetInstance();
}
records.AddRecord(r);
if (!await WriteRecordData(records))
{
Debug.WriteLine("An Error occurred while writing records");
}
MessageDialog riskDialog = new MessageDialog("Your Risk Level is: " + r.RiskLevel.ToString());
await riskDialog.ShowAsync();
Frame.GoBack();
}
private async Task <bool> WriteRecordData(RecordList records)
{
StorageFile file;
MemoryStream ms = new MemoryStream();
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(RecordList));
serializer.WriteObject(ms, records);
byte[] buffer = ms.ToArray();
IStorageItem item = await ApplicationData.Current.LocalFolder.TryGetItemAsync("records.dat");
if (item == null)
{
file = await ApplicationData.Current.LocalFolder.CreateFileAsync("records.dat",
Windows.Storage.CreationCollisionOption.ReplaceExisting);
}
else
{
file = await ApplicationData.Current.LocalFolder.GetFileAsync("records.dat");
await file.DeleteAsync();
file = await ApplicationData.Current.LocalFolder.CreateFileAsync("records.dat",
Windows.Storage.CreationCollisionOption.ReplaceExisting);
}
StorageFolder folder = ApplicationData.Current.LocalFolder;
using (var stream = await file.OpenStreamForWriteAsync())
{
await stream.WriteAsync(buffer, 0, buffer.Length);
}
await ms.FlushAsync();
ms.Dispose();
return(true);
}
private async Task <bool> ReadRecordData()
{
try
{
StorageFolder folder = ApplicationData.Current.LocalFolder;
Stream stream = await folder.OpenStreamForReadAsync("records.dat");
if (stream.Length > 0)
{
using (StreamReader reader = new StreamReader(stream))
{
DataContractJsonSerializerSettings settings = new DataContractJsonSerializerSettings();
settings.RootName = "root";
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(RecordList),
settings);
records = (RecordList)serializer.ReadObject(stream);
}
}
return(true);
}
catch (FileNotFoundException ex)
{
StorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync("records.dat");
records = RecordList.GetInstance();
return(true);
}
return(false);
}
private async Task <bool> CreateViewModel()
{
if (!await ReadUserDetails())
{
Debug.WriteLine("Could not load user details");
return(false);
}
if (!await ReadRecordData())
{
Debug.WriteLine("Could not load records");
return(false);
}
RecordList visibleRecordList = records;
if (currentUser.Equals("admin"))
{
visibleRecordList = records;
}
else
{
visibleRecordList.Records = records.Records.Where(x => x.Owner.Username.Equals(currentUser)).ToList();
}
RecordViewModel model = new RecordViewModel(records);
lstRecords.DataContext = model;
lstRecords.ItemsSource = model.PopulateData();
return(true);
}
public static RecordList GetInstance()
{
if (instance == null)
{
instance = new RecordList();
}
return(instance);
}
public RecordViewModel(RecordList r)
{
records = r;
}