c# core async/await stops debugging

.net-core c# entity-framework-core

Question

I have a solution with multiple projects. Its build in .NET Core 2.2 and uses for example .NET EF. When calling a async method the debugger stops, no exception, try.. catch around it doesn't catch the error, debugger goes direct to the end of the console application. Cleaned up all bin/obj folders, removed .vs folder, checked all nuget packages for updates.

The code where it stopped it this moment is where I query EF async. But before this I got the same error while executing other async functions of web-requests. All thirdparty libraries from Microsoft. After adding .wait() or .result the problem is solved and I can contine.

tRepository.Queryable().Where(q => q.Tenant.Guid == iBaseTenant.Guid).ToListAsync();

The program '[17052] dotnet.exe' has exited with code 0 (0x0). The program '[17052] dotnet.exe: Program Trace' has exited with code 0 (0x0).

1
0
2/9/2019 2:57:31 PM

Fastest Entity Framework Extensions

Bulk Insert
Bulk Delete
Bulk Update
Bulk Merge

Accepted Answer

Found the solution, I forgot to add a await on a higher level. This function itself had the await, but the function calling this function was executed via a foreach loop where this did't wait for the result of all those items.

So when you have the same issue, please check if ALL levels have the await.

3
2/8/2019 5:02:56 PM

Related Questions

async-await issue in EF 6

I'm trying async-await programming with entity-framework 6 (code first) + WPF and I can't see why the UI still freezes after I made the code asynchronous. Here is what I'm doing from the very first line:...first there is an event handler responding to a click button:...private async void LoginButton_Click(object sender, RoutedEventArgs e) { if (a...
async-await entity-framework entity-framework-6 wpf
asked by Vahid

EF6 alpha Async Await on an Entity Stored Procedure / Function Import?

I'd like to apply the new async await functionality to Stored Procedures / Function Imports imported in my Entity model, but have as yet been unable to with the EF6 alpha....Is it yet possible in EF6 alpha2 (or the nightly build as of 20211) to call any of the new Async methods on an Entity Function Import (which calls a SQL Stored Procedure) that ...
async-await c#-5.0 entity-framework entity-framework-6
asked by blueFish

How do I safely call an async method from EF's non-async SaveChanges?

I'm using ASP.NET Core, and EF Core which has ...SaveChanges... and ...SaveChangesAsync.......Before saving to the database, in my ...DbContext..., I perform some auditing/logging:...public async Task LogAndAuditAsync() { // do async stuff } public override int SaveChanges { /*await*/ LogAndAuditAsync(); // what do I do here??? re...
async-await asynchronous c# entity-framework entity-framework-core
asked by grokky

Return Task<IReadOnlyCollection<T>> from EF Core query without await?

I like to be as specific as is possible with my types. When offering up a method encapsulating a query it's common to see ...List<T>... returned (or more specifically ...Task<List<T>>....) No wonder with EF Core's ....ToListAsync()... method. But that's not very accurate is it? ...List<T>... is a projection of a larger collection in SQL Server ...
c# ef-core-2.1 entity-framework-core
asked by Licht

How to check if Entity item was added in Async C# MVC Core method

I am writing my own implementation of IUserStore and IUserPasswordStore and I need to prepare async method ...CreateAsync... which will return ...IdentityResult.... So far I have this:... public async Task<IdentityResult> CreateAsync(User user) { Users.Add(user); //await Users.AddAsync(user); SaveChanges(); //...
asp.net-core asp.net-identity async-await asynchronous entity-framework-core
asked by RaV

C# awaited entity framework core in memory operation is very slow when performed within loop

I have this kind of code that I am trying to unit test with an in memory ef core database....public async Task<int> UpdateHistoricalWeatherDataAllLocationsAsync() { var regions = DalContext.Region.ToList(); var allInsertAmounts = new List<int>(); foreach (var region in regions) { var startDate = Dat...
c# entity-framework-core in-memory-database
asked by Craig

Async/Await in Foreach Loop(That is looping ef models) Generates an Error

I have a foreach loop and the first time it goes around in the first item it works find but when it gets to the next item, I get this error....System.InvalidOperationException HResult=0x80131509 Message=Error generated for warning 'Microsoft.EntityFrameworkCore.Infrastructure.LazyLoadOnDisposedContextWarning: An attempt was made to lazy-load na...
asp.net-core async-await c# entity-framework-core
asked by chobo2

.net core C# use dynamic property name on EF Core Database first generated model class

I have a user details class...public partial class UserDetails { public int? Level { get; set; } public string Unit { get; set; } public string Bio { get; set; } public bool? Gender { get; set; } public int? Mobile { get; set; } public string Photo { get; set; } } ...I am writing an update met...
.net-core c# entity-framework-core
asked by Franva

Converting EF Core queries from 2.2 to 3.0 - async await

In EF Core 2.2 I had:... var data = await _ArticleTranslationRepository.DbSet .Include(arttrans => arttrans.Article) .ThenInclude(art => art.Category) .Where(trans => trans.Article != null && trans.Article.Category != null && trans.Article.Category.Id == categoryId.Value) .GroupBy(trans => trans.ArticleId) ...
async-await c# ef-core-3.0 entity-framework entity-framework-core
asked by juFo

How to debug and fix 'Nullable object must have a value' within Entity Framework Core?

I'm doing a projection in this method:...public async Task<TradeDetail> Get(int tradeId) { var firstOrDefaultAsync = await context.EvgTGTrade .Where(x => x.IdTrade == tradeId) .Select(trade => new TradeDetail { Id = trade.IdTrade, Code = trade.CdTrade, Description = trade.DeTrade, ...
.net c# entity-framework-core nullable
asked by SuperJMN

Fastest Entity Framework Extensions

Bulk Insert
Bulk Delete
Bulk Update
Bulk Merge
View more on Stack Overflow

Prime Library

Performance

Expression Evaluator

More Projects...

Related

Licensed under: CC-BY-SA with attribution
Not affiliated with Stack Overflow
Licensed under: CC-BY-SA with attribution
Not affiliated with Stack Overflow