public NewStaffPage()
{
InitializeComponent();
Title.Content = "ADD NEW STAFF";
StaffID.Text = manage.Create_NewIdstaff_Auto();
startwork.IsEnabled = false;
startwork.Text = DateTime.Today.ToString();
combosex.ItemsSource = new List <string>()
{
"nu", "nam"
};
comboPosition.ItemsSource = new List <string> {
"quan li", "thu ngan", "ban hang"
};
BitmapImage image = new BitmapImage();
image.BeginInit();
image.UriSource = new Uri("pack://application:,,/Images/Image.png");
image.EndInit();
imgStaff.Source = image;
imgStaff.Tag = null;
StaffID.IsReadOnly = true;
startwork.DisplayDate = DateTime.Now;
}