Entity Framework Core 3.0 query causes "SqlException: 'Execution Timeout Expired'" and tempdb become full
I'm running a fairly simple query in Microsoft Entity Framework Core 3.0 that looks like this: It has worked fine with EF Core 2.2.6 but when upgrading to EF Core 3.0 this query runs instantly for 721...
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- 16 May at 18:31
Entity Framework Core 3 raw SQL missing methods
I'm trying to use EF Core 3 to delete all rows from a table like: ``` db.MyTable.ExecuteSqlRaw("delete from MyTable;"); ``` But I get the error: > DbSet' does not contain a definition for 'Execute...
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- 12 Oct at 06:22
Unable to connect to web server 'IIS Express'
I am using Microsoft Visual Studio 2019 Community preview, version 16.4.0 Preview 1.0. I just update to Windows 10 Pro Version 1903 OS build 18362.418 . With ASP.NET Core 3 web-app project (Blazor Ser...
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- 23 Oct at 00:13
Blazor: A second operation started on this context before a previous operation completed
I'm creating a server side Blazor app. The following code is in the `Startup.cs`. services.AddDbContext(o => o.UseSqlServer(Configuration.GetConnectionString("MyContext")), ServiceLifetime.Transient...
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- 6 May at 07:18
How to use Serilog in .NET Core Console app
I wanted my application to have capability of logging to a file, so I started to look for something more than default .NET Core 2.2 logging framework. I see that Serilog might do the job. However, I c...
How to globally set default options for System.Text.Json.JsonSerializer?
Instead of this: ``` JsonSerializerOptions options = new JsonSerializerOptions { PropertyNamingPolicy = JsonNamingPolicy.CamelCase // etc. }; var so = JsonSerializer.Deserialize<SomeObject>(so...
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- 20 Jul at 02:20
C# 8 features in .NET Framework 4.7.2
In a c# project targeting .NET Framework 4.7.2 I made a local function static because Visual Studio (16.3.3) suggested it. Everything compiled and worked fine. But when I pushed this on my CI build se...
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- 7 May at 03:50
Linq WHERE EF.Functions.Like - Why direct properties work and reflection does not?
I try to perform a simple LIKE action on the database site, while having query building services based on generic types. I found out while debugging however, that performing `EF.Functions.Like()` with...
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- 6 May at 10:35
Decompiled Sources only show "throw null" for every .NET Framework class
I have - - - but when I then look at e.g. the decompiled source for any referenced class in the .NET framework e.g. `System.Console` or for `Microsoft.AspNetCore.Builder` (or almost any other type), ...
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- 14 Oct at 08:22
Is there any possibility to have two BaseURL WebHostUrl in ServiceStack?
We are running AppService in cloud. The WebHostUrl url is stored in web.config file and assigned the url in application start event as like below. ``` SetConfig(new HostConfig { WebHostUrl = bas...
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- 10 Oct at 09:42
passing docker environment variables to .net core
I've followed this [article](https://cmelendeztech.com/posts/2017/02/using-docker-env-vars-in-dotnet-core.html) and the code on the [github](https://github.com/christianhxc/hellodocker/blob/master/Hel...
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- 10 Oct at 09:15
.Net Core 3 IStringLocalizer.WithCulture(CultureInfo) is obsolete
I've upgraded a project from .Net Core 2.2 to .Net Core 3.0. After trying to fix all the warnings and errors I'm now trying to find a solution to this warning: ``` 'IStringLocalizer.WithCulture(Cultur...
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- 4 Jan at 21:6
How can I get my .NET Core 3 single file app to find the appsettings.json file?
How should a single-file .Net Core 3.0 Web API application be configured to look for the `appsettings.json` file that is in the same directory that the single-file application is built to? After runn...
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- 11 Oct at 15:20
How to add property in existing json using System.Text.Json library?
``` { "TestData":{ "Year__of__Account":"2019", "Tax___x0025_":"0.06", "Buildings__1":"1000", "Contents__1":"400", "Total...
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- 25 Nov at 23:56
Mark strings as non-nullable in ASP.NET Core 3.0 Swagger
I'm using ASP.NET Core 3 and Swashbuckle with mostly default configuration and I have a DTO parameter with a string on it that I want to be non-nullable. How can I achieve this? Note, Required and nul...
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- 30 Sep at 06:51
standard_init_linux.go:211: exec user process caused "exec format error"
I am building the Dockerfile for python script which will run in minikube windows 10 system below is my Dockerfile Building the docker using the below command `docker build -t python-helloworld .` a...
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- 9 Oct at 07:31
.NET Core 3.0 StringEnumConverter not serializing as string
When decorating your enum with: ``` [JsonConverter(typeof(StringEnumConverter))] public EventEntity Entity { get; set; } ``` And serializing it with `JsonConvert.SerializeObject(myEvent)` You may ...
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- 8 Oct at 14:14
.Net Core 3.0 TimeSpan deserialization error - Fixed in .Net 5.0
I am using .Net Core 3.0 and have the following string which I need to deserialize with Newtonsoft.Json: ``` { "userId": null, "accessToken": null, "refreshToken": null, "sessionId": ...
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- 7 Sep at 07:58
How to modify asp.net Identity UI for asp.net core WebAPI with angular
I started learning .net core a few days ago and as a start, I created a .netcore project with an inbuilt angular 8 templates. It has a couple of pages built in angular, like counter and fetches data...
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- 1 Jan at 21:31
Typescript: Cannot use import statement outside a module
I have a .ts file in node js (latest version of node.js for 07.10.19) app with importing node-module without default export. I use this construction: `import { Class } from 'abc';` When i run the code...
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- 24 Nov at 20:4
How to correctly implement unit tests for .NET Standard Library
So as far as I have been understanding from my research. A .net Standard Library can not be used on its own, so it needs to be tested through a different framework, either with .net Framework or .net ...
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- 16 May at 18:31
Converting newtonsoft code to System.Text.Json in .net core 3. what's equivalent of JObject.Parse and JsonProperty
I am converting my newtonsoft implementation to new JSON library in .net core 3.0. I have the following code ``` public static bool IsValidJson(string json) { try { J...
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- 25 Nov at 18:56
Enable Billing on the Google Cloud Project
I want to retrieve address from lat long coords. I have created project in google console. Added Billing information and enabled the geocoding api services. But still when i make this request i am get...
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- 6 Feb at 22:32
How to run multiple BackgroundService parallel in .net core 3.0?
How is it possible to run multiple IHostedServices in parallel? I use the WorkerService in .Net Core 3.0 and want both services to run parallel. Currently the second service is waiting for the first ...
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- 14 Oct at 09:23
Microsoft.Azure.StorageException: The specified resource name contains invalid characters
I am creating blob storage to load a file from local path to cloud. Using storage account I have created on portal, I am getting an error: `Microsoft.Azure.Storage.StorageException:The specified resou...
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- 7 Oct at 08:8