In April 2003, C# 1.2. was released. Ever since all the versions have had the only major version. Now, if what the official page of roslyn on github says is true, versions 7.1.and 7.2 are under development. (more…)
PowerShell is a Shell included in Windows to automate tasks in the operative system and other applications like SQL Server, SharePoint and Internet Information Services. You can create reports, start services, check the hard drive space, verify the RAM and more.
PowerShell can now be installed in Linux, Docker, and Mac.
You can use loops, comparisons, conditionals and more to create powerful scripts to automate tasks like creating Virtual Machines or SQL Servers in Azure.
In this new article, we will learn how to use the script task to invoke PowerShell in C#. The script task in SQL Server Integration Services (SSIS) allows using C# or VB code to extend the SSIS features. (more…)
The first version of ASP.NET MVC appeared back in 2009, and the platform (ASP.NET Core) was first relaunched last summer. During this time, the default project structure has remained almost unchanged: folders for controllers, views, and often for models (or perhaps ViewModels). This approach is called Tech folders. After creating a new ASP.NET Core MVC project, the organization structure of folders is the following:
Such a simple topic as type conversion would seem to be unworthy of the whole article. In C#, there is a suitable operator “(T)value” and types that implement it. So, this topic may be considered as closed. However, for 14 years of .NET existence, BCL developers and other programmers have come up with other four ways to convert value types.
When I was programming in C#, I used to send all recursive tasks to an unmanaged C code, since the .NET performance was problematic. And now, looking back at my past experience, I think of the benefits of such code division. Do I really benefit from it, and if yes, how much? What is the best way of building API with such approach? (more…)
C# is a multi-paradigm programming language. Recently, the course has been set towards new functional constructions in C#. We can go further and add other extension methods that allow writing less code without ‘climbing’ in the F# territory.
In computer programming, the specification pattern is a particular software design pattern, whereby business rules can be recombined by chaining the business rules together using boolean logic. The pattern is frequently used in the context of domain-driven design.
In short, the main benefit of using “specifications” is a possibility to have all the rules for filtering domain model objects in one place, instead of a thousand of lambda expressions spread across an application.
I have decided to write this article in order to show that unit tests are not only a tool to grapple with regression in the code but is also a great investment into a high-quality architecture. In addition, a topic in the English .NET community motivated me to do this. The author of the article was Johnnie. He described his first and last day in the company involved in the software development for business in the financial sector. Johnnie was applying for the position – of a developer of unit tests. He was upset with the poor code quality, which he had to test. He compared the code with a junkyard stuffed with objects that clone each other in any unsuitable places. In addition, he could not find abstract data types in a repository: the code contained only binding of implementations that cross request each other.
In my previous publication, we have started analyzing JIT compilation. Today we are going to explore method dispatch of interfaces and generics (both for classes and separate methods along with real signatures), as well as how to debug release-mode assemblies with optimization. In addition, we’ll figure out the true purpose of System.__Canon.
I think many developers have been wondering: How many bytes does an object instance take in managed code? What’s the limit for a CLR object? Are there any differences between 32-bit and 64-bit systems for memory allocation?