ASP.NET Core, Blazor, .NET, Azure, SharePoint, IoT
ASP.NET Core 2.1 introduces new application host for Windows services. We can now run ASP.NET Core applications as Windows services with minimal effort. This blog post introduces how it is done and how to build and run Windows services on ASP.NET Core without any need for dirty hacks.
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Previous versions of Entity Framework Core doesn’t support database level grouping and LINQ GroupBy is translated locally. Entity Framework Core 2.1 translates LINQ GroupBy to database query in most of cases. Here is the example.
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There are scenarios where developers want to add attributes to backing field of automated property. It was hard to do before C# 7.3. Now it is supported in Visual Studio and solution is simple. This blog post shows how to add attribute to backing field of automated property.
Read moreAs General Data Protection Regulation (GDPR) is now official in European Union (EU) there’s also some basic support for it included in ASP.NET Core 2.1. Althouhg it’s not possible to come out with technical etalon for GDPR there’s still some good starting points available in ASP.NET Core. Here is the brief overview.
Read moreWhen I wrote user interface for my TemperatureStation solution I faced some bad problems with Entity Framework Core when trying to query base type and get some navigation properties of derived types included. I was able to come out with some work-arounds that were far from being satisfying for me. Include for derived types in Entity Framework Core solves the problem.
Read moreASP.NET Core 2.1 introduces Razor Class Library (RCL). It’s the new way how to share reusable web application components with UI as dependent project or NuGet package. As public examples mostly cover how it works with Razor Pages, I decided to write this blog post and demo application for ASP.NET Core MVC.
Read moreOne of new features introduced by C# 7.0 is support for pattern matching in switch statements. It’s like mix of switch and if statements so we don’t have to nest these two. This blog post introduces pattern matching in switch statements and shows what C# compiler produces of switch statements.
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Computer Vision API of Azure Cognitive Services can be used to analyze and describe images. It’s rich API that supports also faces and landmarks recognition, not to mention automatic describing and tagging of images. This blog post shows how to use image analyzing features of Azure Cognitive Services.
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Bundling and minification has been available in ASP.NET MVC for a long time. This blog post focuses on problems people have had with bundling and provides working solutions for those who cannot use bundling in ASP.NET MVC for different reasons. Also some ideas about more effective bundling are presented here.
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Blazor supports communication with JavaScript using JavaScript interop. I used JavaScript interop in Blazor when building confirm delete dialog of my Blazor demo application. This blog post shows how to interact with JavaScript code from Blazor and how to build interactive dialogs.
Read moreAzure Cognitive Services has wider audience than cool young guys developing very cool mobile apps. These services can be used in very different use cases. This blog post shows how to use Azure Cognitive Services to automatically describe and tag photos added to Office 365 SharePoint picture library.
Read moreOne small change that comes with C# 7.2 is support for non-trailing named arguments in method calls. This post explains what are non-trailing named arguments, how to use them and how they look after compiling.
Read moreBlazor supports dependency injection similar to what we have in ASP.NET Core. Also view injection is supported. This writing introduces dependency injection in Blazor and provides working code samples about it.
Read moreC# 7.2 introduces new access modifier – protected private. It targets developers who are responsible for class libraries and API-s design and who need also consistent design for internals of class libraries. This blog post shows how protected private access modifier works.
Read moreI had presentation for local community about Blazor and as a side-product I built something useful. Blazor supports components that are a little bit similar to ones we have in React.js. I took my previous work from my blog posts Paging with Entity Framework Core and Building Pager view component and built pager component for Blazor.
Read moreC# 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.
Read moreAlthough 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.
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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.
Read moreCreating 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.
Read moreMost 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.
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.
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