C# 要调用此方法，“Membership.Provider”属性必须是“ExtendedMembershipProvider”的实例
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/15753864/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
To call this method, the "Membership.Provider" property must be an instance of "ExtendedMembershipProvider"
提问by G_Man
Currently whenever I try to register a user or login using the default membership services built into ASP.Net MVC4 on my host provider DiscountASP I receive the error
目前，每当我尝试在我的主机提供商 DiscountASP 上使用内置于 ASP.Net MVC4 的默认会员服务注册用户或登录时，我都会收到错误消息
To call this method, the "Membership.Provider" property must be an instance of "ExtendedMembershipProvider".
要调用此方法，“Membership.Provider”属性必须是“ExtendedMembershipProvider”的实例。
This doesn't happen locally.
这不会发生在本地。
Here is my InitializeSimpleMembershipAttribute.cs:
这是我的InitializeSimpleMembershipAttribute.cs：
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public sealed class InitializeSimpleMembershipAttribute : ActionFilterAttribute
{
private static SimpleMembershipInitializer _initializer;
private static object _initializerLock = new object();
private static bool _isInitialized;
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
// Ensure ASP.NET Simple Membership is initialized only once per app start
LazyInitializer.EnsureInitialized(ref _initializer, ref _isInitialized, ref _initializerLock);
}
private abstract class SimpleMembershipInitializer
{
protected SimpleMembershipInitializer()
{
Database.SetInitializer<UsersContext>(null);
try
{
using (var context = new UsersContext())
{
if (!context.Database.Exists())
{
// Create the SimpleMembership database without Entity Framework migration schema
((IObjectContextAdapter)context).ObjectContext.CreateDatabase();
}
}
WebSecurity.InitializeDatabaseConnection("DefaultConnection", "UserProfile", "UserId", "UserName", autoCreateTables: true);
}
catch (Exception ex)
{
throw new InvalidOperationException("The ASP.NET Simple Membership database could not be initialized. For more information, please see http://go.microsoft.com/fwlink/?LinkId=256588", ex);
}
}
}
}
Here is a full screenshot of the error:
这是错误的完整屏幕截图：
Does anyone know how I can fix this or know an article that addresses it?
有谁知道我如何解决这个问题或知道一篇解决这个问题的文章？
采纳答案by Brad Christie
Try setting the following up in your web.configwithin the <system.web>node:
尝试在您web.config的<system.web>节点中设置以下内容：
<roleManager enabled="true" defaultProvider="SimpleRoleProvider">
<providers>
<clear />
<add name="SimpleRoleProvider" type="WebMatrix.WebData.SimpleRoleProvider, WebMatrix.WebData" />
</providers>
</roleManager>
<membership defaultProvider="SimpleMembershipProvider">
<providers>
<clear />
<add name="SimpleMembershipProvider" type="WebMatrix.WebData.SimpleMembershipProvider, WebMatrix.WebData" />
</providers>
</membership>
<sessionState mode="InProc" customProvider="DefaultSessionProvider">
<providers>
<add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" />
</providers>
</sessionState>
Sounds like SimpleMembership isn't recognized when you go to use it.
听起来像 SimpleMembership 在您使用它时无法识别。
Also, it may be worth including, the WebMatrix.webDatalibrary can be installed via NuGet:
此外，可能值得包括，该WebMatrix.webData库可以通过 NuGet 安装：
PM> Install-Package Microsoft.AspNet.WebPages.WebData
回答by Robert J. Good
I had the same error, but it was 100% references for me. I have had trouble getting WebMatrix.WebSecurity working several times...each time is because I did not create the project using the MVC 4 Internet template.
我有同样的错误，但对我来说是 100% 的参考。我在多次使用 WebMatrix.WebSecurity 时遇到了麻烦……每次都是因为我没有使用 MVC 4 Internet 模板创建项目。
The key is that the references and config work by default in the template, so just recreate your project and it will be fine.
关键是引用和配置默认在模板中工作，所以只需重新创建您的项目就可以了。
My fix is: 1. Back up my project to another folder. 2. Check out all files 3. Create a new MVC 4 Internet project, under the exact same name. 4. Copy + Paste (overwrite) the original project. 5. Add any missing references, changed routes, .config settings/DB connections.
我的解决方法是： 1. 将我的项目备份到另一个文件夹。2. 检出所有文件 3. 使用完全相同的名称创建一个新的 MVC 4 Internet 项目。4. 复制+粘贴（覆盖）原始项目。5. 添加任何缺失的引用、更改的路由、.config 设置/数据库连接。
回答by Kolya Evdokimov
Did steps above but that didn't help. What helped was changing web.config:
做了上面的步骤，但这没有帮助。改变 web.config 有帮助：
<dependentAssembly>
<assemblyIdentity name="WebMatrix.Data" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="WebMatrix.WebData" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.1.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
回答by Tarik
Try to change the Login function under AccountController.cs
尝试更改AccountController.cs下的登录功能
//
// POST: /Account/Login
[AllowAnonymous]
[HttpPost]
public ActionResult Login(LoginModel model, string returnUrl)
{
if (ModelState.IsValid)
{
if (Membership.ValidateUser(model.UserName, model.Password))
{
FormsAuthentication.SetAuthCookie(model.UserName, model.RememberMe);
if (Url.IsLocalUrl(returnUrl))
{
return Redirect(returnUrl);
}
else
{
return RedirectToAction("Index", "Home");
}
}
else
{
ModelState.AddModelError("", "The user name or password provided is incorrect.");
}
}
// If we got this far, something failed, redisplay form
return View(model);
}
