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Default literal expressions in C# 7.1

C# 7. 1 introduces a little update to default literal expressions that makes them a little bit shorter and on some cases helps us write cleaner and more readable code. This blog post introduces this litlle feature update in C# 7. 1 and peeks behind the compiler to see what is produced of default literal expressions. Old style default literal expressions Default literal expressions let us use default values for types. 07:55 11.05.2018 kanalilt DT blogi 2


Separating code and presentation of Blazor pages

Although there are many examples available demonstrating Blazor views it is also possible to separate code and presentation by using Razor pages with backing model. This blog post is based on my Blazor presentation and focuses on separating code and presentations of Blazor pages. Sample form For this post I’m using sample edit form from my Blazor presentation. It’s simple one and allows to add/edit few details of books. 08:26 10.05.2018 kanalilt DT blogi 2


Advanced Raspberry Pi traffic lights simulator

My previous post about Raspberry Pi traffic lights introduced simple traffic lights simulator. I developed the solution further and came out with more advanced version that has better architecture, more flexible design and support for traffic lights schedules that are automatically downloaded from remote server. 07:57 09.05.2018 kanalilt DT blogi 2


Creating PDF on ASP.NET Core

Creating PDF files on ASP. NET Core has been issue for awhile. I needed some proof-of-concept solution to prove it’s possible to generate PDF files on ASP. NET Core easily without writing a lot of code or going through complex configuration. I solved the problem and here is my solution. The best and most polished solution I found was Rotativa. AspNetCore. 09:28 08.05.2018 kanalilt DT blogi 2


Global DevOps Bootcamp 2018 is coming to Tallinn!

The new event we will hold first time this year at Tallinn is Global DevOps Bootcamp 2018. It takes place at 16th of June at premises of local Microsoft office. The event is organized by UserGroup Estonia – the local Microsoft user-group managed by Estonian MVP-s. We welcome also english speaking attendees from other countries and besides learning new things, attending at our DevOps Bootcamp is also great chance to see Tallinn. 10:06 03.05.2018 kanalilt DT blogi 2


Simulating traffic lights with Raspberry Pi and Windows 10 IoT Core

Most of beginner examples for Raspberry Pi introduce how to turn on and off LED lamp. I wrote a little bit more complex starting example but it has some touch from real life – my example simulates traffic lights. I’m IoT noobie but using Microsoft tools it was actually easy to build this little example. This blog post is short introduction about what I did. 07:45 30.04.2018 kanalilt DT blogi 2


Inferred tuple names in C# 7.1

Although 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. In C# 7. 08:45 26.04.2018 kanalilt DT blogi 2


WebAssembly apps with Blazor

Next version of ASP. NET Core is getting better and better and with it we can use new tooling for Blazor applications announced yesterday at official ASP. NET blog. Blazor is Microsoft tooling to build WebAssembly applications using . NET languages. This blog post is short introduction to Blazor tooling and WebAssembly. 09:42 18.04.2018 kanalilt DT blogi 2


Visual Studio Live Share for collaborative coding

Sharing code and working together on it in real time from different locations has been issue for years. We have video chat and screen sharing for long time but working on same files together in IDE has been a dream. Visual Studio Live Share is here to solve the problem. Although the service is not generally available yet it is possible to try out early versions of it using Visual Studio or Visual Studio Code. 10:00 19.03.2018 kanalilt DT blogi 2


VS Code for PHP development

Although most of my work time is spent on ASP. NET and SharePoint development I also have some PHP projects. I have my own favorite thin tooling for PHP but I decided to give a try to Visual Studio Code (VS Code) with one of the projects. This blog post describes what I have in my dev box and what are my first impressions using VS Code for PHP development. Why VS Code? VS Code is not IDE like Visual Studio. 10:00 16.02.2018 kanalilt DT blogi 2


Culture based views in ASP.NET Core

ASP. NET Core supports culture based views for more complex localizations. It means we have one view per culture per controller action. This blog post shows how to use culture based views in ASP. NET Core and how to implement them. Sample solution. Working code introduced here and in my blog post ASP. NET Core: Simple localization and language based URL-s is available in GitHub repository gpeipman/AspNetCoreLocalization. 10:00 15.02.2018 kanalilt DT blogi 2


Reading request body in ASP.NET Core

Most of requests to controller actions of our ASP. NET Core applications send some simple parameters or some serialized model objects. But this is not always the case. There are also those requests we don’t want to map to models but we need the request body to process, save or use it some other ways. This blog post shows how to read request body in ASP. NET Core controller action. 09:47 12.02.2018 kanalilt DT blogi 2


Building pager tag helper

Tag helpers are classes that can be applied to HTML and special tags in ASP. NET Core views. They are addition to HTML helper extension methods and they provide more flexibility by having their own classes and supporting framework level dependency injection. This blog post demonstrates how to create pager tag helper to support displaying paged results in ASP. NET Core views. 10:05 06.02.2018 kanalilt DT blogi 2


New killer features planned for . NET Core, ASP.

Microsoft 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. . NET Core 2. 09:45 05.02.2018 kanalilt DT blogi 2


Entity Framework Core with . NET Core console application.

ASP. 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. 10:07 01.02.2018 kanalilt DT blogi 2


Switching C# version in Visual Studio

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. To make Visual Studio 2017 to use some other version of C# follow the steps shown on the following image. 10:03 30.01.2018 kanalilt DT blogi 2


ASP.NET paging solution available at GitHub

Paging of data in ASP. NET and ASP. NET Core applications is timeless topic. It is invented over and over again and asked all the time in forums all over the world. Years ago I worked out kind of universal solution with reusable UI artifacts and I’m using these pieces this far. As ASP. NET Core is gaining more and more popularity I decided to start my sample solution with . NET Core and add full ,NET Framework and ASP. 10:00 29.01.2018 kanalilt DT blogi 2


Ref returns and ref locals in C# 7.0

C# 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#. 09:56 26.01.2018 kanalilt DT blogi 2


NHibernate supports async

NHibernate, the O/R-mapper that some people consider as dead, is actually alive and very much alive. The release of version 5. 0 at last autumn was somehow quiet and didn’t got much attention. But there is something that brings NHibernate to modern era – support for asynchronous database access. This blog post gives brief overview of new async methods in NHibernate and shares some ideas about how to start using them. 09:14 25.01.2018 kanalilt DT blogi 2


Refactoring: Replace Exception with Test

Exceptions are mechanism to transport information about errors in object-oriented code. But they come with performance hit when not used carefully. Still we find a lot of code when exceptions are not avoided but used as a control mechanism in code flow. This post introduces replace exception with test refactoring that helps us to avoid at least some exceptions. 09:58 24.01.2018 kanalilt DT blogi 2