更改应用程序用户属性

Question

我正在尝试更改应用程序用户的属性，但出现错误在

IdentityResult result = await Usermanager.UpdateAsync(model);

对象引用未设置为对象的实例。

目标是改变ApplicationUser Fullname、Website、Email，如果他愿意的话。有没有更简单的方法可以代替我在这里尝试做的事情？还是我走在正确的轨道上？

[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> EditUserData(string FullName, string Website, string Email)
{
    ApplicationUser model = db.Users.Find(User.Identity.GetUserId());
    model.Email = Email; 
    model.UserName = Email; 
    model.FullName = FullName; 
    model.Website = Website;
    IdentityResult result = await Usermanager.UpdateAsync(model);
    return RedirectToAction("Settings","Admin");
}

尝试一些东西

        [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<ActionResult> EditUserData(ApplicationUser user)
    {
        UserStore<ApplicationUser> store = new UserStore<ApplicationUser>(db);
        UserManager<ApplicationUser> UserManager = new UserManager<ApplicationUser>(store);
        ApplicationUser model = UserManager.FindById(User.Identity.GetUserId());
        model.Email = user.Email;
        model.UserName = user.UserName;
        model.FullName = user.FullName;
        model.Website = user.Website;
        IdentityResult result = await UserManager.UpdateAsync(model);
        //UserManager.Update(model);
        //db.SaveChanges();
        return RedirectToAction("Settings", "Admin");
    }

页面只是刷新。并且未进行任何更改

Answer 1

我认为

，没有传递操作参数。如果要应用 post，则应将参数合并为复杂对象。那么，为什么不使用ApplicationUser作为参数。

[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> EditUserData(ApplicationUser user)
{
        ApplicationUser model = db.Users.Find(User.Identity.GetUserId());
        model.Email = user.Email; 
        model.UserName = user.UserName; 
        model.FullName = user.FullName; 
        model.Website = user.Website;
        IdentityResult result = await Usermanager.UpdateAsync(model);
        return RedirectToAction("Settings","Admin");
}