Entity Framework lazy loading with AsNoTracking()

We are currently using lazy loading for Entity Framework and running into `out of memory exception`. The reason why we're running into this exception is because the Linq query loads a lot of data and ...

Using Azure Active Directory OAuth with Identity Model in ASP.NET Core 2.0

# The problem statement We are developing a new enterprise level application and want to utilize Azure Active Directory for signing into the application so that we do not have to create another se...

java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex in Android Studio 3.0

This is my app level gradle file: ``` apply plugin: 'com.android.application' android { compileSdkVersion 26 buildToolsVersion '27.0.0' useLibrary 'org.apache.http.legacy' defaultCon...

9 Apr at 06:57

C# Async Task Method Without Await or Return

I have an Interface I that is implemented in two places like: ``` interface I { Task DoSomething(); } ``` The interface has async Task DoSomething method API that is then implemented in class ...

8 Nov at 19:28

C# DotNet Core Middleware Wrap Response

I have a simple controller action which looks like: ``` public Task<IEnumerable<Data>> GetData() { IEnumerable<Data> data = new List<Data>(); return data; } ``` I want to be...

8 Nov at 14:49

How can I point two different projects to the same SQLite db-file?

I have a simple question. I have 2 layers in my application, a front-end and data access layer, in different projects. I am creating a sqlite db in the data access layer by migration in data access la...

13 Aug at 09:6

SQL: how to specify a date format on creating a table and fill it

I want to save the date in format 'dd.mm.yyyy'. So I read there are different formats for a date in SQL (by the way I use Visual Studio and SQL Server). I tried this code: ``` CREATE TABLE APP( ...

3 Jun at 14:46

ServiceStack .Net Core fluent validation Not consistent with full .NET 4.6.2

So we have a working ServiceStack service hosted inside a Windows Service using .Net 4.6.2, which uses a bunch of Fluent Validation validators. We would like to port this to .Net Core. So I started t...

10 Nov at 08:19

A certificate chain could not be built to a trusted root authority

During the installation of .NET Framework 4.6.2, I got an error: > .NET Framework installation failed: -2146762486. A certificate chain could not be built to a trusted root authority A solution to...

8 Nov at 09:41

C# Add Accept header to HttpClient

What is the difference between these two calls? My end goal is to have `Accept: application/json` sent over the wire, not to append to some default set of other MIME types. ``` HttpClient client = ne...

How to unit test ViewComponent.Invoke()?

In `ViewComponent` object, `HttpContext` and `User` are read-only properties. How to unit test such a component? I'm using the MSTest Freamwork. The follow properties are used in my code 1. Cook...

Type or namespace name 'MySQL' could not be found VS2017

Currently trying to create a connection to a MySql Database. When I added `using MySql.Data; using MySql.Data.MySqlClient;` to my class I recieved the typical "The type or namespace name ... could n...

8 Nov at 05:49

Failed to resolve: com.android.support:appcompat-v7:27.+ (Dependency Error)

I am having this issue in Android studio. ``` Error:Failed to resolve: com.android.support:appcompat-v7:27.+ <a href="install.m2.repo">Install Repository and sync project</a><br><a href="open.depende...

Checkbox angular material checked by default

I am trying to use an Angular Material checkbox, and set it by default as checked, but it is displayed as non-checked, what is wrong? ``` <mat-checkbox class = "example-margin" [(ngModel)] = obj.impr...

Using an X509 private key to sign data in dotnet core v2 (SHA256)

I'm having trouble reproducing some cryptographic functionality in .NET Core. This is code ported from a .NET 4.5 Framework project: ### .NET 4.5 code In dotnet core the `ToXmlString()` and `FromXmlSt...

7 May at 08:23

C#: throw invalid expression compilation

I'm using this code in order to check `queryable` value: ``` visitor.Queryable = queryable ?? throw new Exception("error message"); ``` I'm getting a compilation error: > error CS1525: Invalid exp...

7 Nov at 11:2

Could not load file or assembly 'Microsoft.VisualStudio.TestPlatform.ObjectModel, Version=11.0.0.0'

I am using MSTest.TestAdapter and MSTest.TestFramework both version 1.2.0 for my MS tests unit tests. On my local machine (Visual Studio 2017) the tests run perfectly, but on our build server we get t...

ServiceStack Incompatible net 4.7.1

i have a problem with VS2017 (15.4.2) and ServiceStack. The error is the seguent: Package ServiceStack.Logging.Log4Net 4.5.14 is not compatible with net471 (.NETFramework,Version=v4.7.1) / win-x64. P...

Got "Pipelining of requests forbidden" in c# rabbitmq client

I have a RabbitMQ C# Client running in a WCF service. It catches `System.NotSupportedException: Pipelining of requests forbidden` exception now and then.

16 May at 06:48

Visual Studio Code: "Program has more than one entry point defined"

I created a [C# project using Visual Studio Code](https://learn.microsoft.com/en-us/dotnet/core/tutorials/with-visual-studio-code). This project contains two .cs files, and . Both files contain a fu...

How can I run specific migration in laravel

I create on address table migration but one migration is already in the database it gives following error : > Base table or view already exists: 1050 Table 'notification' already exists So, Can I ru...

10 Jan at 10:46

Could not load file or assembly 'System.Net.Http

In my diagnostic view of my build output shows this conflict > There was a conflict between "System.Net.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" and "System.Net.Http, ...

7 Nov at 03:9

'Webdrivers' executable may have wrong permissions. Please see https://sites.google.com/a/chromium.org/chromedriver/home

I've looked around checked both documentations and have found no answer. I've been trying to use InstaPy a instagram api for python. After failing with multiple errors and assuming InstaPy is just ha...

"The specified Android SDK Build Tools version (26.0.0) is ignored..."

In Android Studio 3, I'm seeing this issue: > The specified Android SDK Build Tools version (26.0.0) is ignored, as it is below the minimum supported version (26.0.2) for Android Gradle Plugin 3....

servicestack angular spa template

trying to use servicestack [https://github.com/NetCoreTemplates/angular-lite-spa](https://github.com/NetCoreTemplates/angular-lite-spa) and when execute: npm run dev got this error. Is there any way t...

6 Nov at 20:31