In a C# console application, you can change the color of the text emitted by Console.WriteLine by setting Console.ForegroundColor and Console.BackgroundColor. It’s pretty straightforward, but if you want to make the output have different colors to denote different things, its kind of cumbersome to have to set the color and then write the output, and … [Read more…]
This one’s kind of specific, but sometimes when you’re writing a console app that does a lot of asynchronous stuff, and you want to cancel it at any time by pressing escape. via GIPHY However, Console.ReadKey is blocking… so that’s not super great. CancellationToken First, make use of the cancellation tokens. I’ve talked about them … [Read more…]
Are you tired of feeling like your code is meaningless? Sick of people not referring to your code as “black magic,” or struggling to gain recognition from your boss for writing sufficiently obfuscated code?If you’ve answered “yes” to any of the above, Reflection might be for you! via GIPHY Reflection I’ve talked about reflection a … [Read more…]
Sometimes I find myself wanting a quick way to compare an enum with a list of other enums… Basically, if the enum is one of these, then do this. It’s pretty easy to do with Linq, but if you want to do it a few times in a few other places, it pays to be … [Read more…]
TCP is a good choice for communication if you want to know that your message got to where it was going, as opposed to UDP where the communication is fire-and-forget. When a message is sent, the recipient sends an acknowledgement that the message arrived successfully. If you don’t get an acknowledgement, you have a pretty … [Read more…]
Recently my team upgraded to .NET Core 2.2. We have an API that needs to be accessed from an Angular project living in a different domain, so we had CORS enabled this way: Disclaimer: this is an intranet application – so it is only accessible inside of a corporate firewall, making it more acceptable to … [Read more…]
A TcpListener opens a socket using TCP to listen for incoming connection requests. You can use AcceptTcpClientAsync to asynchronously get a TcpClient object, which you can then use to send and receive messages on the connection. AcceptTcpClientAsync Waits forever to get a connection. This is pretty much what you want most of the time… after … [Read more…]
In C# asynchronous programming, a CancellationToken allows you to stop a Task. This is especially useful if you have many Tasks running and want to gracefully shut down the program, or if you want to add a timeout to a Task. via GIPHY Creation CancellationTokens are created from a CancellationTokenSource. via GIPHY Usage The token … [Read more…]
Recently I’ve been working on adding SignalR to a web application, and that means broadcasting records to clients after they’ve been updated. I could make different methods for each update type and react accordingly, but I’m pretty lazy so I decided to just make one “update” method that receives the entire record (and replaces it … [Read more…]
Recently I was trying to write a unit test testing to see if one object was equal to another. The objects themselves were simple, just a collection of built-in types, so it should be easy to test. .Equals However, since I didn’t implement .Equals, C# doesn’t natively know how to check if the objects are … [Read more…]