public MainWindow()
{
InitializeComponent();
contacts = Contact.GetContactByTelOrName();
ListContacts.ItemsSource = contacts;
if (newContact == null)
{
newContact = new Contact();
}
}
private void Click_Search(object sender, RoutedEventArgs e)
{
List <Contact> listSearch = Contact.GetContactByTelOrName(SearchTel.Text);
ListContacts.ItemsSource = listSearch;
}
