public void PutUser(User user)
{
_cache.Push(user.Email, user);
ShopEntities db = new ShopEntities();
db.User.Add(user);
}
protected void Save_Onclick(object sender, EventArgs e)
{
User h = new User();
h.First_Name = txtFirstName.Text;
h.Last_Name = txtLastName.Text;
h.Email = TextEmail.Text;
h.Password = TextPassword.Text;
ShopEntities dbShop = new ShopEntities();
dbShop.User.Add(h);
dbShop.SaveChanges();
}