public async Task<ActionResult> EditProfile(EditProfileViewModel model)
 {
     if (!ModelState.IsValid)
     {
         return View(model);
     }
     var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
     user.RealName = model.DisplayName;
     user.Email = model.Email;
     user.UserName = model.UserName;
     var result = await UserManager.UpdateAsync(user);
     if (result.Succeeded)
     {
         return RedirectToAction("Index", new { Message = ManageMessageId.EditProfileSuccess });
     }
     AddErrors(result);
     return View(model);
 }
 public async Task<ActionResult> EditProfile()
 {
     var user = await UserManager.FindByIdAsync(User.Identity.GetUserId());
     var model = new EditProfileViewModel
     {
         DisplayName = user.RealName,
         Email = user.Email,
         UserName = user.UserName
     };
     return View(model);
 }