public bool UpdateUser(User_details b)
{
if (b == null)
{
throw new ArgumentNullException("User is Empty");
}
db.Entry(b).State = EntityState.Modified;
db.SaveChanges();
return(true);
}
public User_details AddUser(User_details b)
{
if (b == null)
{
throw new NullReferenceException("User is null");
}
db.User_details.Add(b);
db.SaveChanges();
return(b);
}