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CSS Variables can be defined in css (or SCSS) like this: NOTE: These are defines in the root element, in the styles.scss file of an app. :root { --sidenav-width: 300px; --sidenav-collapsed-width: 50px; --sidenav-background-color: var(--app-bac...

Here’s some initial references for setting up Push Notifications in web pages. Service Worker API - Web APIs | MDN Push API - Web APIs | MDN Push notifications overview  |  Articles  |  web.dev Push notifications are now supported cross-browser  |  Blog  |...

Publishing and Running ASP.NET Core Applications with IIS - Rick Strahl's Web Log (west-wind.com)

Here’s a short article for setting up a Raspberry PI to run DotNet. Reference Articles We are following this article series: Page #1: RP #01: Setup your Raspberry Pi with Raspberry Pi OS Page 2: RP #02: Install .NET and develop your first .NET application ...

Here are some use cases for a Func. Func as Method Callback If you want to have a lambda that you pass to a method, like a callback or completion handler, here is an example. Declare the Func, like this: Func<int, int, Task<int>> sigcallback = async (callb...

Good site for testing Regex matching strings: https://regex101.com/r/iY5hU9/1

Here’s my current conventions for logging in application processes. Logging features, here are implemented by the Logging class in OGA.Common.Lib. Logging Phases We use three distinct logging phases for an application, each with a distinct purpose. Ear...

To create a new project at the current folder: dotnet new console --framework net6.0 --use-program-main To run the app: dotnet run  

Here’s a decent mechanism for returning useful errors from a WEB API. Aside: We have a standing test API (OGA.RESTAPI_Testing.Service) that will return examples of this, here: http://192.168.1.201:4250/swagger/index.html We can compose an instance of the Pro...

Six ways to initiate tasks on another thread in .NET

Async method cannot have Ref or an Out parameters. So, we cannot pass back data from them through typical syntax. This requires us to be a little creative. One way around this CLR limitation is to use tuples.Specifically, we can use an implicit tuple, that wi...

People make lots of references to Microsoft articles about how to properly handle Dispose in derived class types.But, there is literally no article on the Microsoft that actually shows this use case.So, here’s a collected method, based on a few references, tes...

During Startup.ConfigureServices During application startup, the Startup.ConfigureServices method is called to register services and configuration with DI.This method allows those services to be consumed across the application. However. During the execution ...

To properly consumes a background service from a controller or another service, it must be registered with DI. As well, since it’s a background service… it must be running… and probably a singleton. NOTE: If you are looking for how to generate an instance of...

NOTE: If you are looking for how to access DI services, see this: HowTo Access DI Services Here are the steps to duplicating the .NET Dependency Injection process, to create a ServiceProvider instance. This is especially useful in unit testing, for classes an...

When you create unit tests for class types that directly use DI to retrieve dependencies, you will need a way to give them a reference to a service provider (IServiceProvider). This is transparently done by the runtime.But, we have to mimic it for unit testin...

NOTE: Refer to this page for how to register and consume a background service: Consuming NET Core Background Service with DI General Lots of the ceremony of a background service has been wrapped up and tested, in this class: BackgroundService_Base NOTE: As ...

Suppress Async Warning Project-Wide Since we have several calls to base classes for diagnostics and such that are async, it's a good idea to standardize on all Test methods be async. The problem is that not every test method contains an awaited call. so, we ...

There are some cases where it is necessary to suppress IDE compiler warnings that apply to the entire project. This can be warnings that occur several times across the source files. Or, it can be for a compiler warning that the project’s framework target is ...

If the compiler is giving you warnings about nullable reference types, then you may need to enable nullables in the csproj file. This can happen when you declare a public class property, like this: public TaskConfigBase? ConfigBase { get; set; } Sin...