对象名称“dbo.UserRoles”无效

我收到此错误：[SqlException (0x80131904): Invalid object name 'dbo.UserRoles'.]，但我无法捕获错误所在。我可以从其他表中检索其他数据，但不能从这个表中检索数据。

条件是：

web.config 中的连接字符串：

<add name="myStoreConnection" connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename='|DataDirectory|\myStore.mdf';Integrated Security=True" providerName="System.Data.SqlClient" />

context:

public class AdminMyStoreConnection : DbContext
    {
        public DbSet<UserRole> UserRoles { get; set; }
    }

创建数据库的sql脚本：

CREATE TABLE [dbo].[UserRoles] (
    [RoleId]   INT            IDENTITY (1, 1) NOT NULL,
    [RoleName] NVARCHAR (256) NOT NULL,
    PRIMARY KEY CLUSTERED ([RoleId] ASC),
    UNIQUE NONCLUSTERED ([RoleName] ASC)
);

model:

[Table("UserRoles")]
public class UserRole
{
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
    public int RoleId { get; set; }
    public string RoleName { get; set; }
}

带有索引视图的控制器：

private UsersContext db = new UsersContext();
public ActionResult Index()
{
    return View(db.Customers.ToList());
}

view:

@using myStore.Helpers
@model IEnumerable<myStore.Areas.Administrator.Models.UserRole>

@{
    ViewBag.Title = "Roles management";
}

<h2>Roles management</h2>
<div class="admin-container">
<div class="bcontrol">
    <a href="@Url.Action("Create", "Roles")" class="btn btn-large btn-primary"><i class="icon-plus-sign"></i>&nbsp;Create New Entry</a>
</div>

@{
    var grid = new WebGrid(Model, defaultSort: "RoleId", canSort:true, canPage: true, rowsPerPage:20);
}

@grid.GetHtml(
    tableStyle: "tadmin",
    alternatingRowStyle: "alt",
    selectedRowStyle: "selected-row",
    columns:
        grid.Columns(
            grid.Column("RoleId",
                        header: "ID " + Html.SortDirection(ref grid, "RoleId"),
                        style: "tadmin-id"),

            grid.Column("RoleName",
                        header: "Role Name " + Html.SortDirection(ref grid, "RoleName"),
                        format: @<text><a href="@Url.Action("Details", "Roles", new { id = item.RoleId })" >@item.RoleName</a></text>),

            grid.Column("Control", style: "tadmin-control", canSort: false,
                        format:
                        @<text><a href="@Url.Action("Edit", "Roles", new { id = item.RoleId })" class="btn btn-large btn-primary"><i class="icon-edit"></i>&nbsp;Edit</a>
                        <a href="@Url.Action("Details", "Roles", new { id = item.RoleId })" class="btn btn-large btn-primary"><i class="icon-list"></i>&nbsp;Details</a>
                        <a href="@Url.Action("Delete", "Roles", new { id = item.RoleId })" class="btn btn-large btn-primary"><i class="icon-minus-sign"></i>&nbsp;Delete</a></text>)
                 )

        )</div>    

和错误消息：

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: Invalid object name 'dbo.UserRoles'.

Source Error:


Line 19:         public ActionResult Index()
Line 20:         {
Line 21:             return View(db.UserRoles.ToList());
Line 22:         }
Line 23: 

和堆栈跟踪：

[SqlException（0x80131904）：无效的对象名称“dbo.UserRoles”。]
System.Data.SqlClient.SqlConnection.OnError（SqlException异常， 布尔值breakConnection，Action`1wrapCloseInAction）+1753986
System.Data.SqlClient.SqlInternalConnection.OnError（SqlException 异常，布尔值breakConnection，Action`1wrapCloseInAction） +5296058 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning（TdsParserStateObject stateObj、布尔值 callerHasConnectionLock、布尔值 asyncClose) +558
System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler、SqlDataReader 数据流、 BulkCopySimpleResultSet BulkCopyHandler、TdsParserStateObject stateObj、布尔值和数据就绪）+1682
System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +59
System.Data.SqlClient.SqlDataReader.get_MetaData() +90
System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior，字符串resetOptionsString）+365
System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior、RunBehavior runBehavior、布尔值 returnStream、布尔值 异步、Int32 超时、任务和任务、布尔 asyncWrite）+1379
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior、RunBehavior runBehavior、布尔值 returnStream、字符串 方法，TaskCompletionSource`1完成，Int32超时，Task&任务， 布尔异步写入）+175
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior、RunBehavior runBehavior、布尔值 returnStream、字符串 方法）+53
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior 行为，字符串方法）+134
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader（CommandBehavior 行为）+41
System.Data.Common.DbCommand.ExecuteReader（CommandBehavior行为） +10 System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand 实体命令、CommandBehavior 行为）+437

[EntityCommandExecutionException：执行时发生错误 命令定义。有关详细信息，请参阅内部异常。]
System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand 实体命令、CommandBehavior 行为）+507
System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute（ObjectContext 上下文，ObjectParameterCollection 参数值) +730
System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 对于合并选项）+131
System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable.GetEnumerator() +36 System.Data.Entity.Internal.Linq.InternalQuery`1.GetEnumerator() +72
System.Data.Entity.Internal.Linq.InternalSet`1.GetEnumerator() +23
System.Data.Entity.Infrastruct.DbQuery`1.System.Collections.Generic.IEnumerable.GetEnumerator() +40 System.Collections.Generic.List`1..ctor(IEnumerable`1 集合) +369 System.Linq.Enumerable.ToList(IEnumerable`1 来源）+58
myStore.Areas.Administrator.Controllers.RolesController.Index() 中 d:.projects\trains\myStore\myStore\Areas\Administrator\Controllers\RolesController.cs:21 lambda_method（闭包，ControllerBase，对象[]）+62
System.Web.Mvc.ActionMethodDispatcher.Execute（ControllerBase 控制器，对象[]参数）+14
System.Web.Mvc.ReflectedActionDescriptor.Execute（ControllerContext controllerContext, IDictionary`2 个参数）+211
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod（ControllerContext 控制器上下文，动作描述符动作描述符，IDictionary`2 参数）+27
System.Web.Mvc.Async.c__DisplayClass42.b__41() +28 System.Web.Mvc.Async.c__DisplayClass8`1.b__7(IAsyncResult _) +10 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +57 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult 异步结果）+48
System.Web.Mvc.Async.c__DisplayClass39.b__33() +57 System.Web.Mvc.Async.c__DisplayClass4f.b__49() +223 System.Web.Mvc.Async.c__DisplayClass37.b__36(IAsyncResult asyncResult) +10 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +57 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult 异步结果）+48
System.Web.Mvc.Async.c__DisplayClass2a.b__20() +24 System.Web.Mvc.Async.c__DisplayClass25.b__22(IAsyncResult asyncResult) +102 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +57 System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction（IAsyncResult 异步结果）+43
System.Web.Mvc.c__DisplayClass1d.b__18(IAsyncResult 异步结果）+14
System.Web.Mvc.Async.c__DisplayClass4.b__3(IAsyncResult ar) +23 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
System.Web.Mvc.Controller.EndExecuteCore（IAsyncResult asyncResult）+57 System.Web.Mvc.Async.c__DisplayClass4.b__3(IAsyncResult ar) +23 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +47
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult 异步结果）+10
System.Web.Mvc.c__DisplayClass8.b__3(IAsyncResult 异步结果）+25
System.Web.Mvc.Async.c__DisplayClass4.b__3(IAsyncResult ar) +23 System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +47 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult 结果）+9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9628700 System.Web.HttpApplication.ExecuteStep(IExecutionStep 步骤，布尔值&completedSynchronously) +155

不幸的是，问题非常简单 - 因为我有 2 个区域 - 主区域和管理员区域，并且分别有 2 种类型的数据连接，我在 webconfig 中只有 1 个连接字符串。在我添加第二行管理上下文和所有工作之后 感谢关注） 所以问题是 webconfig 中的不完整（配置错误）