EF Core one-to-zero relationship one way

Can a relationship one-to-one be created only one way? ``` public class Class1 { [Key] [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int Class1Id { get; set; } ... } publi...

25 Feb at 08:24

Add certificate on request with RestSharp

I'm trying to communicate with a server. This server send me a certificate and a private key in order to execute my request successfully. To test the server, I use [Postman](https://www.getpostman.co...

2 Mar at 12:30

SQL ISNULL equivalent in ormlite

is there an equivalent of `ISNULL` in SQL for `OrmLite`? I tried adding ``` [Default(typeof(int),"-1")] ``` to my class model, but had no luck.. I'm working with `MVC5` and `C#`

3 Mar at 16:49

ServiceStack Razor Response Filter

I Write a ServiceStack Razor Page named 'default.cshtml'. I want to add a global response filter on it running, but it not work right. how to fixed it? [](https://i.stack.imgur.com/ikCK7.png)

2 Mar at 10:2

How to get date ticks in a javaScript?

I have such a code in the C#: ``` public static decimal StringDateToDecimal(this string stringDate) { var cultureInfo = new CultureInfo("ru-Ru"); var date = DateTime.Parse(stringDate, culture...

1 Mar at 17:54

How can I add a custom JSON file into IConfiguration?

I'm using asp.net + Autofac. I'm trying to load a custom JSON configuration file, and either create/instance an IConfiguration instance based on that, or at least include my file into whatever IConfi...

20 Feb at 12:15

Prevent screen from sleeping with C#

I have created a small C# console app to move the pointer around the screen, in the hope that this would prevent the screen from sleeping / locking after a few minutes. Unfortunately the screen still ...

1 Mar at 09:6

AddSigningCredential for IdentityServer4

We are using IdentityServer4 with .NET Core Web Application("[http://docs.identityserver.io/en/release/quickstarts/0_overview.html](http://docs.identityserver.io/en/release/quickstarts/0_overview.html...

5 Apr at 21:40

Is it OK to have one handler call another when using MediatR?

Or is that considered bad practice or something? I have one notification triggers 4-5 handlers, which in turn call database to retrieve data. Each those calls can also be called separately, so the...

5 Mar at 07:11

ServiceStack ORMLite encoding issue after upgrade

We have just upgraded some software we have from ServiceStack 4.0.62 to ServiceStack 5.0.0.0. For some reason ormlite's encoding management seem to have changed. Code that simply saves a DTO with a ...

1 Mar at 00:15

How to send Parameter/Query in HubConnection SignalR Core

I'm trying to add parameter into connection to signalr. I'm using Builder to create my Client connection and start it: ``` var connection = new HubConnectionBuilder() .WithUrl("http://10.0.2...

1 Mar at 11:25

External json vulnerable because of Json.Net TypeNameHandling auto?

I'm operating a small website where users can upload custom "objects" defined in JSON. Recently I've learned about possible threats using JSON with automatic type deserialization: [JSON problem](https...

1 Mar at 10:20

ServiceStack - Force generation of Typescript types for certain classes

I'm working with a backend primarily focused on a ServiceStack API and a Typescript frontend (with the ServiceStack `JsonServiceClient`) interacting with it. This is a large project, so the ability to...

Unable to locate System.Data.SqlClient reference

I have a fresh Visual Studio 2017 Professional install. I'm building a quick POC Console application using .NET 4.7.1, and I'm unable to find the reference for System.Data.SqlClient. I have scoured m...

6 Mar at 20:54

C# - System.Data.SqlClient.SqlException: 'Failed to generate SSPI context.'

When trying to run my .NET Core 2.0 app from IIS Express, I get the following error: ``` System.Data.SqlClient.SqlException: 'Failed to generate SSPI context.' ``` This occurs when trying to access...

28 Feb at 13:47

Implementing Pagination in ServiceStack

# Background I'm consuming a third party WebApi using ServiceStack. A number of their endpoints paginate the results according to a common schema. Example JSON: ``` { "count": 23, "pageS...

28 Feb at 12:57

Precompile asp.net views with ms build

When I deploy asp.net application through visual studio I know I can just check `Precompile during publish` and uncheck `Allow precompiled site to be updateable`. And I want to do the same with `msb...

ServiceStack.redis configuration on VS 2008

I am working on a project(WebAPI) where i have to pick data from azure redis cache and i am using visual studio 2008 due to some constraints. How can i configure it to use ServiceStack.redis/azure red...

How is the new C# Span<T> different from ArraySegment<T>?

I am having trouble conceptualizing the usages for [the new Span<T> in C#](https://learn.microsoft.com/en-us/archive/msdn-magazine/2018/january/csharp-all-about-span-exploring-a-new-net-mainstay). 1....

29 Oct at 07:55

Query data, in Redis, by using a field value

Please help me. I've stored data, in Redis, by using C# servicestack.redis libraries. In this case, I stored data from 4 classes. For this case, I want to recover all data, from Redis, by using a va...

27 Feb at 16:33

What is a wrapping conversion?

When you try to cast a value from a type to another incompatible type, you get the following error in C#: > CS0039 Cannot convert type A to B via reference conversion, boxing conversion, unboxing con...

27 Feb at 16:19

ServiceStack on .NET Core using Authorization Policies

Is there an example of using .NET Core authorization policies with ServiceStack based apis? I have setup a .net core based ServiceStack site, I also have created an authorization policy. The next ste...

Validation in Xamarin using DataAnnotation

I am trying to add validations in Xamarin. For that I have used this post as a reference point: [Validation using Data Annotation](https://blogs.msdn.microsoft.com/premier_developer/2017/04/03/validat...

Git Bash Command on Windows, yarn command not found

I following this online tutorial on downloading and installing web files from GIT HUB. I got down to the topic: Starting Our Static Website, there I'm prompted to enter the commands to download and in...

22 Dec at 05:3

Request.InputStream in ASP.NET Core

I'm trying to use this library in ASP.NET Core: [https://github.com/infusion/jQuery-webcam](https://github.com/infusion/jQuery-webcam) to get the picture taken from a webcam. In this example, [MVC Ca...

13 Aug at 18:22