store details in windows phone 8 using sqlite? - windows-phone-8

Question

I want to store information from the NFC tag I read and store in the database and show it all in another page but I am having problem in using implementing sqlite.I cant add the information to the database using sqlite.
Below is my checkin class from where I read from the NFC tag
public partial class Checkin : PhoneApplicationPage
{
private ProximityDevice _device;
private long _subscriptionIdNdef;
public static double Latitud_do { get; set; }
public static double Longtitude_do { get; set; }
public static string latitude { get; set; }
public static string longtitude { get; set; }
public static string Floor_st { get; set; }
public static string Zone_st { get; set; }
History store = new History();
public Checkin()
{
InitializeProximityDevice();
InitializeComponent();
}
private void SetLogStatus(string newStatus)
{
Dispatcher.BeginInvoke(() => { if (LogStatus != null) LogStatus.Text = newStatus; });
}
private void SetFloorStatus(string newStatus)
{
Dispatcher.BeginInvoke(() => { if (FloorStatus != null) FloorStatus.Text = newStatus; });
}
private void ApplicationBarIconButton_Click(object sender, System.EventArgs e)
{
MessageBox.Show(" ");
}
private void InitializeProximityDevice()
{
_device = Windows.Networking.Proximity.ProximityDevice.GetDefault();
if (_device != null)
{
_subscriptionIdNdef = _device.SubscribeForMessage("NDEF", MessageReceivedHandler);
}
}
private void MessageReceivedHandler(ProximityDevice sender, ProximityMessage message)
{
var rawMsg = message.Data.ToArray();
var ndefMessage = NdefMessage.FromByteArray(rawMsg);
////// Loop over all records contained in the NDEF message
foreach (NdefRecord record in ndefMessage)
{
if (NdefTextRecord.IsRecordType(record))
{
// Convert and extract URI info
var textRecord = new NdefTextRecord(record);
string[] str = textRecord.Text.Split('|');
var Floor_st = str[0];
var Zone_st = str[1];
var latitude = str[2];
var longtitude = str[3];
Latitud_do = double.Parse(latitude);
Longtitude_do = double.Parse(longtitude);
SetLogStatus("Floor: " + Floor_st + " Zone: " + Zone_st );
SetFloorStatus("Longitude: " + latitude + " Longitude: " + longtitude);
//store.AddDb(Floor_st, Zone_st, Latitud_do, Longtitude_do);
}
}
}
}
Below here is the main dbhelper class for the main sqlite functions
public class DbHelper
{
SQLiteConnection dbConn;
public async Task<bool> onCreate(string DB_PATH)
{
try
{
if (!CheckFileExists(DB_PATH).Result)
{
using (dbConn = new SQLiteConnection(DB_PATH))
{
dbConn.CreateTable<historyTableSQlite>();
}
}
return true;
}
catch
{
return false;
}
}
private async Task<bool> CheckFileExists(string fileName)
{
try
{
var store = await Windows.Storage.ApplicationData.Current.LocalFolder.GetFileAsync(fileName);
return true;
}
catch
{
return false;
}
}
//retrieve all list from the database
public ObservableCollection<historyTableSQlite> ReadHistory()
{
using (var dbConn = new SQLiteConnection(App.DB_PATH))
{
List<historyTableSQlite> myCollection = dbConn.Table<historyTableSQlite>().ToList<historyTableSQlite>();
ObservableCollection<historyTableSQlite> HistoryList = new ObservableCollection<historyTableSQlite>(myCollection);
return HistoryList;
}
}
// Insert the new info in the histrorytablesqlite table.
public void Insert(historyTableSQlite newcontact)
{
using (var dbConn = new SQLiteConnection(App.DB_PATH))
{
dbConn.RunInTransaction(() =>
{
dbConn.Insert(newcontact);
});
}
}
}
below is the class from where I read all the information
public class ReadAllContactsList
{
DbHelper Db_Helper = new DbHelper();
public ObservableCollection<historyTableSQlite> GetAllHistory()
{
return Db_Helper.ReadHistory();
}
}
}
And last is the class where I want to show all the information I have stored
ublic partial class History : PhoneApplicationPage
{
// string dbPath = Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, "db.sqlite");
ObservableCollection<historyTableSQlite> DB_HistoryList = new ObservableCollection<historyTableSQlite>();
public History()
{
InitializeComponent();
}
private void ReadHistoryList_Loaded(object sender, RoutedEventArgs e)
{
ReadAllContactsList dbhistory = new ReadAllContactsList();
DB_HistoryList = dbhistory.GetAllHistory();//Get all DB contacts
ListData.ItemsSource = DB_HistoryList.OrderByDescending(i => i.Id).ToList();//Latest contact ID can Display first
}
public void AddInfo(object sender, RoutedEventArgs e)
{
DbHelper Db_helper = new DbHelper();
Db_helper.Insert(new historyTableSQlite(
));
}
}
I followed the following post but still struglling
http://bsubramanyamraju.blogspot.com/2014/08/windowsphone-8-sqlite-storing-data-in.html
Thank you for your help in advance