ASP.NET Core, Blazor, .NET, Azure, SharePoint, IoT
With ASP.NET Core 3.0 Preview 3 we have template for background processes like Windows services and Linux daemons. New project template is called Worker Service and this writing shows how it works and how to use it.
Read more.NET Core 3.0 Preview 3 is out and there are many interesting updates to framework and to ASP.NET Core. Here’s the short list of what’s new.
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Keeping objects complete and valid all the time is strategy used in different methodics. It’s perhaps most popular in Domain Driven Design (DDD). Entity Framework Core 2.1 made big step forward on supporting entities that doesn’t have default empty constructor. This blog post shows how to use Entity Framework Core and entities with constructor arguments.
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After my first introduction to Windows Sandbox I took one of my ASP.NET Core applications and tried to find a way how to get it quickly to Windows Sandbox and open in browser. This scenario is already possible and it wasn’t hard all to make things work. This blog post shows how to do it.
Read moreASP.NET Core uses built-in dependency injection mechanism provided by Microsoft. This blog post intorduces how to use same mechanism in .NET Core console applications. For those who like other DI/IoC frameworks this writing provides demo about how to use Autofac with .NET Core framework-level dependency injection.
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One of new language features of C# 8.0 is support for using declarations. These declarations enable shorter syntax for declaring disposable variables we want to dispose. Also using declarations give us a little bit cleaner code while compiler makes a dirty work of producing correct code that takes care of disposing disposable variables.
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About year ago I wrote a blog post Running PHP applications on .NET Core where I introduced how to build PHP applications to .NET Core using Peachpie. Their showcase was WordPress – the famous blog engine that also runs my blog. Peachpie guys have made significant work over year and they have reached the point where whole WordPress is built as .NET Core application.
Read moreAlthough C# 7.1 hasn’t many new features there are still some convenience hacks I like. One of these is inferred tuple names meaning that we can name tuple members using variable names. It’s not a big change in language but it still makes code a little bit cleaner where tuples are used.
Read moreMicrosoft announced roadmap for upcoming release of .NET Core family versioned as .NET Core 2.1. While there are some new features and many improvements coming I compiled a list of my favorites that I see as most imortant to all developers building solutions on .NET Core, ASP.NET Core and Entity Framework Core.
Read moreASP.NET Core makes it very easy to configure and use Entity Framework Core in web applications. For .NET Core console applications there is no such machinery available but we can still use Entity Framework Core in console applications. This post shows how to wrap database context initialization to separate class and use Entity Framework Core synchronous and asynchronous calls in .NET Core console application.
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Want to try out features of newest of some specific version of C# but Visual Studio 2017 can’t compile it? Well, by default major versions of C# are supported and if some other version is needed it must be turned on from project settings. This blog post shows how to switch between C# versions in Visual Studio 2017.
Read moreC# 7.0 introduces ref returns and ref locals. Main goal of these new features is to make it easier for developers to pass around references to value types instead of copies of their values. This is important when working with large data structures that are implemented as value types. This blog post shows how to use ref returns and ref locals in Ć#.
Read moreAlthough expression bodied members have been supported in C# few years there were still room for some new ones. C# 7.0 introduces expression bodied constructors, destructors, getters and setters. This blog bpost goes through all these new expression bodied members and shows how to use them. Also a little peek behind the compilator curtains is made.
Read moreMy last post about tuple literals gave brief intorduction to these. This post goes to internals of tuple literals, peeks behind the compiler and shows what happens with tuple literals internally. This post is for developers who are new to tuple literals and want to gain more deep understanding of these.
Read moreBefore applying any optimizations to our code we have to ask one question: what is the cost of improvement and is it really improvement? Compiled queries in Entity Framework 2.0 are categorized as high-availability feature but before making any decisions we need to know what is the actual win. This blog post introduces the measurements I made with simple database context to compare compiled and uncompiled queries in Entity Framework Core 2.0.
Read moreMicrosoft Intermedia Language (MSIL) is .NET assembly language that is standardized under name Common Intermediate Language (CIL). All .NET compilers turn source code to this language. Although we hardly have a situation where we have to write intermedia language (IL) code directly it is still good to know how it works and how it is supported on Visual Studio. This blog post fills the gap and shows how to write IL code on Visual Studio.
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Timers are useful .NET feature. With timers we can execute code with specified interval. With real scenarios we can easily face situations where timer calls its callback again but previous call is not finished yet. It may end up with loading some external system too much. It may also end up by making unexpected parallel data processing that distorts the results. This post introduces some options to avoid overlapping timer calls.
Read moreWorking on some threading stuff I stumbled upon some discussions about lock and Monitor. Some say they are different and some say they are the same. I took few minutes of time to make some simple experiments with both of these. This blog post shows what C# compiler does with lock statement. As I had to use also Monitor class I added one example here how to use it instead of lock.
Read moreC# 7.1 introduces asynchronous Main method for console applications. It helps us to get rid of some ugly code to await for asynchronous methods. If Main method of console applications is application flow controller that makes multiple calls to asynchronous methods then async Main leads us to much cleaner code. This blog post is my deep dive to async Main.
Read moreAnother day, another surprise on .NET Core. Tried to load a file with Windows-1252 encoding and got the following exception: NotSupportedException: No data is available for encoding 1252. For information on defining a custom encoding, see the documentation for the Encoding.RegisterProvider method. Here’s how to solve the problem.
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My saga on supporting multiple tenants in ASP.NET Core web applications has come to point where tenants can use separate databases. It’s time now to write some tests for data context to make sure it behaves correct in unexpected situations. This post covers unit tests for data context and multi-tenancy.
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