ASP.NET LINQ SQL DATABASE

Question

我正在制作一个.net系统.我正在使用LINQ和MVC.我不得不创建实时数据库,并希望这可以顺利运行,但事实并非如此.

新的SQL SERVER - Microsoft Windows NT 5.0(2195)/ 8.00.760

我创建了一个可以添加/编辑/删除的管理员用户.基本上我遇到以下错误,如果我尝试添加(.InsertOnSubmit)或删除(.DeleteOnSubmit)任何行,但不是我编辑时.

"Network access for Distributed Transaction Manager (MSDTC) has been disabled. Please enable DTC for network access in the security configuration for MSDTC using the Component Services Administrative tool."

我用谷歌搜索了这个错误,发现人们认为它与"MSDTC服务"有关,但这似乎在服务上打勾.我已经通过SQL Server Management登录到数据库,该用户可以添加/删除.

一个例子:

Controller
if (_service.AddAccess(access)) return RedirectToAction("Access");

public Repository()
{
    _db = new DataClassDataContext(ConfigurationManager.ConnectionStrings["RegistrarsServices"].ConnectionString);
}

public void Save()
{
    _db.SubmitChanges();
}

public bool AddAccess(Access access)
{
    try
    {
        using (var scope = new TransactionScope())
        {
            _db.Accesses.InsertOnSubmit(access);
            Save();

            scope.Complete();
        }
        return true;
    }
    catch (Exception)
    {
        return false;
    }
}

*请注意这在使用开发服务器时确实有效.Microsoft Windows NT 5.2(3790)/ 10.0.1600.22

调节器

private readonly ServiceAdministration _service = new ServiceAdministration();

public ActionResult AddAccess()
{
    return View(new EmailViewModel());
}

[HttpPost]
public ActionResult AddAccess(EmailViewModel emailViewModel)
{
    if (emailViewModel.Button == "Back") return RedirectToAction("Access");

    if (!ModelState.IsValid) return View(emailViewModel);

    Access access = new Access();
    access.emailAddress = emailViewModel.emailAddress;

    if (_service.AddAccess(access)) return RedirectToAction("Access");

    emailViewModel.errorMessage = "An error has occurred whilst trying to grant access. Please try again later.";
    return View(emailViewModel);
}

服务

readonly Repository _repository = new Repository();

public bool AddAccess(Access access)
{
    return _repository.AddAccess(access);
}

真的不知道我错过了什么.

在此先感谢您的帮助.

克莱尔:-)

Answer 1

你知道为什么要触发分布式事务吗？这是您需要调查的内容.通常的罪魁祸首是来自单个TransactionScope的多个ADO.Net连接.请参阅ADO.NET和System.Transactions以及ADO.NET和LINQ to SQL.确保在事务范围中使用单个连接(即LINQ2SQL上下文).无论如何,您不必每个HTTP呼叫使用多个.