private void ReadContactList_Loaded(object sender, RoutedEventArgs e)
{
DatabaseHelperClass Db_Helper = new DatabaseHelperClass();
ProgressIndicator progress = new ProgressIndicator
{
IsVisible = true,
IsIndeterminate = true,
Text = "Đang tải dữ liệu về từ Server..."
};
ReadAllContactsList dbcontacts = new ReadAllContactsList();
var template = dbcontacts.GetAllContacts();
//neu ko co du lieu ta lay tu webservice ve va insert vao database
if (template.Count == 0)
{
//Chi load tu Service khi tu man hinh login vao
if (App.isLoaded == false)
{
App.isLoaded = true;
}
else
{
return;
}
if (NetworkInterface.GetIsNetworkAvailable() == true)
{
ProgressHub.ShowProgress(this.LayoutRoot);
SystemTray.SetProgressIndicator(this, progress);
ApiHelper.Instance.ExecuteGetAsyn("http://api.androidhive.info/contacts/",
(response) =>
{
//parse string response thanh doi tuong cua minh
RootObject dataJson = JsonConvert.DeserializeObject <RootObject>(response);
//ta co duoc du lieu roi gio insert xuong database nhe
foreach (ServiceContacts item in dataJson.ListRoot)
{
Contacts contact = new Contacts(item.Name, item.Phone.Mobile, item.Email, item.Address, item.Gender);
Db_Helper.Insert(contact);
DB_ContactList.Add(contact);
}
//Doc len tu database lai
//this.listBoxobj.ItemsSource = DB_ContactList;
progress.IsVisible = false;
ProgressHub.CloseProgress();
}, (statuscode, message) =>
{
progress.IsVisible = false;
});
}
else
{
MessageBox.Show("không có kết nối mạng, vui lòng kiểm tra kết nối mạng", "THÔNG BÁO", MessageBoxButton.OK);
}
}
else // con khong thi do du lieu len
{
if (App.isLoaded == false)
{
App.isLoaded = true;
}
//listBoxobj.ItemsSource = DB_ContactList.OrderByDescending(i => i.Id).ToList();//Latest contact ID can Display first
foreach (var item in template)
{
DB_ContactList.Add(item);
}
}
}