c# – 无法使用ASP .NET Core更新SQL Bit列

我创建了自己的继承自IdentityUser的ApplicationUser类,并为FirstName,LastName和LockoutReason添加了参数. (我也将这些字段添加到数据库表中)现在我正在尝试添加一项功能,允许某人手动锁定用户,而我似乎无法更新数据库中的LockoutEnabled字段.每次我这样做,它会自动重置为false.

这是一张表格的图片：

以及它的GET / POST代码：

//GET Users lock
    public async Task<IActionResult> Lock(string id)
    {
        if (id == null)
        {
            return NotFound();
        }

        var userFromDb = await _db.ApplicationUser.SingleOrDefaultAsync(m => m.Id == id);
        if (userFromDb == null)
        {
            return NotFound();
        }
        else
        {
            return View(userFromDb);
        }
    }

    //POST Users lock
    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Lock(string Id,ApplicationUser model)
    {
        var userFromDb = await _db.Users.Where(u => u.Id == Id).FirstOrDefaultAsync();

        userFromDb.LockoutEnd = model.LockoutEnd;
        userFromDb.LockoutEnabled = true;
        userFromDb.AccessFailedCount = model.AccessFailedCount;
        userFromDb.LockoutReason = model.LockoutReason;

        _db.ApplicationUser.Update(userFromDb);
        await _db.SaveChangesAsync();

        return RedirectToAction(nameof(Index));           
    }

ApplicationUser.cs

public class ApplicationUser : IdentityUser
{        
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string LockoutReason { get; set; }
}

单击“锁定”按钮时,LockoutEnd和LockoutReason字段会正确更新,但LockoutEnabled字段仍为false,并且帐户未被锁定.

尝试实施解决方案后的新POST方法：

//POST Users lock
    [HttpPost]
    [ValidateAntiForgeryToken]
    public async Task<IActionResult> Lock(string Id,ApplicationUser model)
    {
        var userFromDb = await _db.Users.Where(u => u.Id == Id).FirstOrDefaultAsync();

        userFromDb.LockoutEnd = model.LockoutEnd;            
        userFromDb.AccessFailedCount = model.AccessFailedCount;
        userFromDb.LockoutReason = model.LockoutReason;

        _db.ApplicationUser.Update(userFromDb);            
        await _db.SaveChangesAsync();

        var user2 = await _userManager.FindByIdAsync(userFromDb.Id);
        var result = await _userManager.SetLockoutEnabledAsync(user2,true);

        return RedirectToAction(nameof(Index));           
    }