public async Task <IActionResult> AvatarUpdate(int id, ContactAvatarUpdateViewModel model)
{
byte[] newAvatarImage = null;
using (var memoryStream = new MemoryStream())
{
await model.NewAvatar.CopyToAsync(memoryStream);
newAvatarImage = memoryStream.ToArray();
}
_contactDabase.AvatarUpdate(id, newAvatarImage);
return(RedirectToAction("Detail", new { Id = id }));
}