1
我正在编写一个Web应用程序，它将访问/更新数据库中的多个现有表。目前，我正在尝试访问SQL Express上的本地数据库版本以用于测试目的，但在搜索后无法正确设置连接。我的web.config文件中目前有连接字符串设置如下：使用connectionString访问现有表
<add name="ContractDBContext"
connectionString="Data Source=SBUWMPB01FHSM\SQLEXPRESS;
Initial Catalog=12-2013 Derivative TrackingSQL;
Integrated Security=True"
providerName="System.Data.SqlClient" />
这是类模型数据库表的代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace ForeignExchange.Models
{
[Table("AccountingData")]
public class Contract
{
[Key][Required]
public int TKRContractID { get; set; }
public int AsOfMonth { get; set; }
public int AsOfQuarter { get; set; }
public int ASOfYear { get; set; }
public double CurrentMoFMVChg { get; set; }
public double LTDFMVChg { get; set; }
public double AccumulatedOCI { get; set; }
public double AccumulatedDerivAsset { get; set; }
public double AccumulatedPL { get; set; }
public double AccumulatedFAS5 { get; set; }
public double HistoricalSpotRate { get; set; }
public double HistoricalHedgedRate { get; set; }
}
[Table("AccountingData")]
public class ContractDBContext : DbContext
{
public DbSet<Contract> Contracts { get; set; }
}
}
编写代码的两段下达后上面，我使用“添加控制器”自动化对话框来生成CRUD .cshtml页面和控制器，称为ContractsController。当我运行的代码，并尝试访问应该显示表生成的索引页，我得到的就行了以下错误
return View(db.Contracts.ToList())
EntityCommandExecutionExcception
An error occurred while executing the command definition.
System.Data.EntityCommandExecutionException was unhandled by user code
HResult=-2146232004
Message=An error occurred while executing the command definition. See the inner exception for details.
Source=System.Data.Entity
StackTrace:
at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior)
at System.Data.Objects.Internal.ObjectQueryExecutionPlan.Execute[TResultType](ObjectContext context, ObjectParameterCollection parameterValues)
at System.Data.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption)
at System.Data.Objects.ObjectQuery`1.System.Collections.Generic.IEnumerable<T>.GetEnumerator()
at System.Data.Entity.Internal.Linq.InternalQuery`1.GetEnumerator()
at System.Data.Entity.Internal.Linq.InternalSet`1.GetEnumerator()
at System.Data.Entity.Infrastructure.DbQuery`1.System.Collections.Generic.IEnumerable<TResult>.GetEnumerator()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at ForeignExchange.Controllers.ContractsController.Index() in C:\Users\stonejo\documents\visual studio 2010\Projects\ForeignExchange\ForeignExchange\Controllers\ContractsController.cs:line 21
at lambda_method(Closure , ControllerBase , Object[])
at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass42.<BeginInvokeSynchronousActionMethod>b__41()
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _)
at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`1.End()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
InnerException: System.Data.SqlClient.SqlException
HResult=-2146232060
Message=Invalid column name 'AccumulatedFAS5'.
Source=.Net SqlClient Data Provider
ErrorCode=-2146232060
Class=16
LineNumber=11
Number=207
Procedure=""
Server=SBUWMPB01FHSM\SQLEXPRESS
State=1
StackTrace:
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady)
at System.Data.SqlClient.SqlDataReader.TryConsumeMetaData()
at System.Data.SqlClient.SqlDataReader.get_MetaData()
at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString)
at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite)
at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method)
at System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method)
at System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
at System.Data.Common.DbCommand.ExecuteReader(CommandBehavior behavior)
at System.Data.EntityClient.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior)
InnerException:
连接字符串和基于Web的应用程序是完全新的给我，让我明白任何帮助某人可以为此提供我。感谢您花时间阅读我的问题。
对于我来说，'Data Source =（localdb）\ v11.0'应该是'Data Source = ServerName \ DbName'。但我可能是错误的 –
Fwiw有时当我在Visual Studio中遇到连接字符串问题时，我会转到数据源，添加新的数据源并让向导找出它。 –
@ T.S。我试过用我的PCname \ SQLEXPRESS去，但遇到了同样的错误。 – brostone51