My Public Notepad

A generator is a special type of function which can pause its execution, yield result back to the caller and resume later, at caller’s conv...

In VSCode open Terminal and use dotnet CLI command package and specify the name of the desired package (e.g. Newtonsoft.Json ): $ dotne...

In the previous article I demonstrated how to create simple .NET Core "Hello, world!" console application and here I want to sh...

To create .NET project of desired type we can use .NET Core command line tool (dotnet). Let's see the list of all possible project type...

Methods returning void are not awaitable. await   operator can be applied only to methods which are returning Task or Task .  Let's ...

Setters: used to set a (new) value of a property expected to be fast value can be validated (e.g. null check, range check etc...); fail...

Behavioral tests sometimes require access to types which are internal for the SUT assembly. If those types are used in test methods, test a...

In the following example we have a situation where Foo() calls Bar() multiple times. Within each  Foo()  call, it passes to  Bar()  diffe...

In my previous post, "How to cancel a Task" , I mentioned that MSDN recommends throwing OperationCanceledException from a cancel...

It is a good practice to offer users a chance to cancel some long-running operation. Such operation usually has to run asynchronously and i...

await and Wait() are two versions of the operation "wait for the task to complete": one is asynchronous (non-blocking) and the o...

C# 6 introduced a Null-Conditional operator which makes null checks more concise. If object on which it is applied is null , it will immedi...

With C# 6 we can finally wave goodbye to the cumbersome, C-style way of injecting values into a string. Before, target string and arguments ...

In the following code namespace Foo contains class with the same name - Foo : This causes compiler to issue an error: Error CS0118: ...

Non-async method which returns Task<T> If method is not marked as async and its return type is Task<T> , it has to return ob...

If you try to await some task in lambda expression like here: ...you will a compiler error: Error CS4034: The 'await' operat...

async-await idiom has been introduced in C# 5.0 and it is basically a syntactic sugar for implementation of task's continuations. Her...

If class allocates unmanaged resources (database connections, sockets, window handles, bitmaps...) it has to implement IDisposable interface...

If this approach is used in WCF service hosted on IIS, we will more likely be interested in the Web Service Application directory which can...

This is a collection of some features of C# I found useful and interesting, given I am coming from a C++ background. - it is easy to str...