我從文本字段獲取值,但找不到未保存在變量中的原因。ASP.NET MVC 5數據爲NULL
var user = new ApplicationUser() { UserName = model.Email ,Email = model.Email};
user
是null
儘管電子郵件中包含的值。我通過調試發現它。
{
Line 81: var user = new ApplicationUser() { UserName = model.Email ,Email = model.Email};
Line 82: var result = await UserManager.CreateAsync(user, model.Password);
Line 83: if (result.Succeeded)
Line 84: {
82行是錯誤。 以下是代碼。
var user = new ApplicationUser() { UserName = model.Email ,Email = model.Email};
var result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
var db = new ApplicationDbContext();
var checkingAccount = new CheckingAccount
{
FirstName = model.FirstName,
LastName = model.LastName,
AccountNumber = "111014005",
Balance = 0,
ApplicationUserId = user.Id
};
db.CheckingAccounts.Add(checkingAccount);
db.SaveChanges();
堆棧跟蹤:
[Win32Exception (0x80004005): The system cannot find the file specified]
[SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 52 - Unable to locate a Local Database Runtime installation. Verify that SQL Server Express is properly installed and that the Local Database Runtime feature is enabled.)]
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) +414
System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) +78
1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +196
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource
System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource1 retry, DbConnectionOptions userOptions) +146
1 retry, DbConnectionOptions userOptions) +16
System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource1 retry) +94
1 retry) +110 System.Data.SqlClient.SqlConnection.Open() +96
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource
System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.b__36(DbConnection t, DbConnectionInterceptionContext c) +10
System.Data.Entity.Infrastructure.Interception.InternalDispatcher1.Dispatch(TTarget target, Action
2 operation, TInterceptionContext interceptionContext, Action3 executing, Action
3 executed) +72
System.Data.Entity.Infrastructure.Interception.DbConnectionDispatcher.Open(DbConnection connection, DbInterceptionContext interceptionContext) +360
System.Data.Entity.SqlServer.<>c__DisplayClass33.b__32() +426 System.Data.Entity.SqlServer.<>c__DisplayClass1.b__0() +10
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Func1 operation) +189
1 act) +175
System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action operation) +78
System.Data.Entity.SqlServer.SqlProviderServices.UsingConnection(DbConnection sqlConnection, Action
System.Data.Entity.SqlServer.SqlProviderServices.UsingMasterConnection(DbConnection sqlConnection, Action1 act) +557
1 commandTimeout, DbConnection sqlConnection, String createDatabaseScript) +86
System.Data.Entity.SqlServer.SqlProviderServices.CreateDatabaseFromScript(Nullable
System.Data.Entity.SqlServer.SqlProviderServices.DbCreateDatabase(DbConnection connection, Nullable1 commandTimeout, StoreItemCollection storeItemCollection) +164
1 commandTimeout, StoreItemCollection storeItemCollection) +76
System.Data.Entity.Core.Common.DbProviderServices.CreateDatabase(DbConnection connection, Nullable
System.Data.Entity.Core.Objects.ObjectContext.CreateDatabase() +134
System.Data.Entity.Migrations.Utilities.DatabaseCreator.Create(DbConnection connection) +119
System.Data.Entity.Migrations.DbMigrator.EnsureDatabaseExists(Action mustSucceedToKeepDatabase) +142
System.Data.Entity.Migrations.DbMigrator.Update(String targetMigration) +78
System.Data.Entity.Internal.DatabaseCreator.CreateDatabase(InternalContext internalContext, Func3 createMigrator, ObjectContext objectContext) +89 System.Data.Entity.Internal.InternalContext.CreateDatabase(ObjectContext objectContext, DatabaseExistenceState existenceState) +116
1.InitializeDatabase(TContext context) +149
System.Data.Entity.Database.Create(DatabaseExistenceState existenceState) +218
System.Data.Entity.CreateDatabaseIfNotExists
System.Data.Entity.Internal.<>c__DisplayClassf1.<CreateInitializationAction>b__e() +76 System.Data.Entity.Internal.InternalContext.PerformInitializationAction(Action action) +60
1.PerformAction(TInput input) +110 System.Data.Entity.Internal.LazyInternalContext.InitializeDatabaseAction(Action
System.Data.Entity.Internal.InternalContext.PerformDatabaseInitialization() +357 System.Data.Entity.Internal.LazyInternalContext.<InitializeDatabase>b__4(InternalContext c) +7
System.Data.Entity.Internal.RetryAction1 action) +198
1.Initialize() +53
System.Data.Entity.Internal.LazyInternalContext.InitializeDatabase() +73 System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +28
System.Data.Entity.Internal.Linq.InternalSet
System.Data.Entity.Internal.Linq.InternalSet1.get_InternalContext() +15 System.Data.Entity.Infrastructure.DbQuery
1.System.Linq.IQueryable.get_Provider() +38 System.Data.Entity.QueryableExtensions.FirstOrDefaultAsync(IQueryable1 source, Expression
1 predicate, CancellationToken cancellationToken) +138 System.Data.Entity.QueryableExtensions.FirstOrDefaultAsync(IQueryable1 source, Expression
1 predicate) +133
Microsoft.AspNet.Identity.EntityFramework.d__6c.MoveNext() +486 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52 Microsoft.AspNet.Identity.CultureAwaiter1.GetResult() +59 Microsoft.AspNet.Identity.<ValidateUserName>d__4.MoveNext() +592 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
1.GetResult() +24 AutomatedTellerMachine.Controllers.d__9.MoveNext() in e:\Passion\Work\AutomatedTellerMachine\AutomatedTellerMachine\Controllers\AccountController.cs:82 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52 Microsoft.AspNet.Identity.<ValidateAsync>d__0.MoveNext() +283 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52 Microsoft.AspNet.Identity.<CreateAsync>d__0.MoveNext() +582 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52 Microsoft.AspNet.Identity.<CreateAsync>d__d.MoveNext() +531 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52 System.Runtime.CompilerServices.TaskAwaiter
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52
System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult) +84
System.Web.Mvc.Async.<>c__DisplayClass37.b__36(IAsyncResult asyncResult) +17
System.Web.Mvc.Async.WrappedAsyncResult1.CallEndDelegate(IAsyncResult asyncResult) +10
1.End() +49
System.Web.Mvc.Async.WrappedAsyncResultBase
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +32
System.Web.Mvc.Async.AsyncInvocationWithFilters.b__3d() +50 System.Web.Mvc.Async.<>c__DisplayClass46.b__3f() +225 System.Web.Mvc.Async.<>c__DisplayClass33.b__32(IAsyncResult asyncResult) +10
System.Web.Mvc.Async.WrappedAsyncResult1.CallEndDelegate(IAsyncResult asyncResult) +10
1.End() +49
System.Web.Mvc.Async.WrappedAsyncResultBase
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34
System.Web.Mvc.Async.<>c__DisplayClass2b.b__1c() +26 System.Web.Mvc.Async.<>c__DisplayClass21.b__1e(IAsyncResult asyncResult) +100
System.Web.Mvc.Async.WrappedAsyncResult1.CallEndDelegate(IAsyncResult asyncResult) +10
1.End() +49
System.Web.Mvc.Async.WrappedAsyncResultBase
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27
System.Web.Mvc.Controller.b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +13
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +36
1.End() +54
System.Web.Mvc.Async.WrappedAsyncResultBase
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +39 System.Web.Mvc.Controller.b__15(IAsyncResult asyncResult, Controller controller) +12
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +28
1.End() +54
System.Web.Mvc.Async.WrappedAsyncResultBase
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +29
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10
System.Web.Mvc.MvcHandler.b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +21
System.Web.Mvc.Async.WrappedAsyncVoid1.CallEndDelegate(IAsyncResult asyncResult) +36
1.End() +54
System.Web.Mvc.Async.WrappedAsyncResultBase
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +31 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9514812 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155
Line 94: };
Line 95: db.CheckingAccounts.Add(checkingAccount);
Line 96: db.SaveChanges();
Line 97: await SignInAsync(user, isPersistent: false);
Line 98: return RedirectToAction("Index", "Home");
Entity Validation Error for 96 Line.
你能否提供一些堆棧跟蹤錯誤? – jgasiorowski
這裏'user'沒有辦法。 – DavidG
先生,我調試過了,用戶沒有任何價值。這就是爲什麼第82行給我一個錯誤。 –