c# - Grant Winney

21 Results tagged on "c#":

Nov 14, 2019

Only assignment, call, increment, decrement, await, and new object expressions can be used as a statement

This error might look a little cryptic at first glance, but it's actually very descriptive in explaining what's wrong. You're likely to come across this one when you're starting out with C# ... or before your first cup of coffee. 😏...

c#delegate programming

Nov 13, 2019

How do I assign C# code to a variable?

Did you know most languages have a way to pass around code to other functions, so you can call (invoke) it in other parts of your application? In C#, it's called a delegate....

c#tuple

Nov 12, 2019

What's the difference between Tuple.Create() vs new Tuple?

C# provides a way to store items of different types, called a Tuple. Maybe the objects are loosely related, but you don't want to define a whole new class. There are two ways to create a Tuple - list the object types explicitly or use Tuple.Create. But what's the difference, if there even is one?...

wpf c#programming

Nov 11, 2019

How can I find the state of NumLock, CapsLock or ScrollLock in WPF?

If you're writing a WPF application and need to find the state of the Num Lock, Caps Lock, or Scroll Lock keys, you're in luck - there's a method for that....

c#linq tech programming

Nov 11, 2019

What is the opposite method of Any in LINQ?

One of the many nice functions in LINQ is a single word that iterates through a collection, returning true if at least one item in the collection matches the condition you specify. But what's the opposite of the Any keyword in LINQ?...

github package registry github-package-registry nuget c#tech

Oct 05, 2019

What's this new GitHub Package Registry all about? (a short tutorial using C# and NuGet)

Most of us host something (and some of us everything) on GitHub, especially since they host private repos for free too now. I've been eager to try the GitHub Package Registry since they announced it last May. Well, I just got access to the beta, so let's see what we can do!...

2fa totp authentication security c#programming

Aug 15, 2019

A sample C# app for generating and verifying TOTP 2FA codes

A few days ago I wrote about how to create a TOTP 2FA code for your app, and I mentioned at the end of it that I'd like to work out an implementation in C#. Here it is... grab the WPF app from GitHub....

c#nunit unit testing dotnetstandard dotnetcore tech

Apr 15, 2019

How to use an application config file with a .NET Standard app and NUnit 3

Porting .NET Framework code to .NET Standard has been a learning experience, with some challenges too. This time I had a .NET Standard library that expected an application config file, but loading one from an NUnit test suite proved to be more difficult than it sounded at first....

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