ASP.NET Core, Blazor, .NET, Azure, SharePoint, IoT
I was writing document and metadata exporter that reads data from SharePoint and writes it to multiple files. I needed to boost up performance of my exporter and I went with multiple threads pumping out the data from SharePoint. One problem I faced – writing metadata to CSV-files from multiple threads in parallel. This blog post shows how to do it using concurrent queue.
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Writing integration tests for ASP.NET Core controller actions used for file uploads is not a rare need. It is fully supported by ASP.NET Core integration tests system. This post shows how to write integration tests for single and multiple file uploads.
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Next version of Microsoft Edge browser is replacing its current rendering engine and in future it will run on Chromium – the same rendering engine used by Google Chrome browser. Edge gets total rework and ends one era in Microsoft history on browsers field. With new browser there will come interesting new features. Here is overview of insiders release of next Microsoft Edge.
Read moreI have application that uses ASP.NET Core Identity with classic logins and there’s need to cover this application with integration tests. Some tests are for anonymous users and others for authenticated users. This blog post shows how to set selectively set authenticated ASP.NET Core Identity user for ASP.NET Core integration tests.
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My previous post demonstrated how to use custom appsettings.js file with integration tests in ASP.NET Core. But in practice it’s not enough and very often we need custom startup class that extends the one in web application project to configure application for integration tests. This blog post shows how to do it.
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ASP.NET Core introduced the concept of TestServer for integration testing of web applications. Integration tests need web application run with all bells and whistles to make sure that all components work together with no flaws. Often we need special settings for integration tests as web application cannot use live services and easiest way to do it is to use special appsettings.json file. This blog post shows how to do it.
Read moreI have ASP.NET Core web application where I need to include partial view only if it exists. The application uses areas and some areas may have their specific side menu. This blog post shows two ways how to conditionally include partial view to ASP.NET Core layout page.
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Short post about how to implement INotifyPropertyChanged without using any advanced tooling. I have some small UWP applications where I’m using MVVM to separate presentation and logic. Here is how I use INotifyPropertyChanged with base class for multiple view models.
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Few months ago I bought new Samsung smart TV with 43” UHD screen. It’s for small room. Big was my surprise if I found out that it’s not so easy to connect this very smart device to regular speakers as there’s no analog audio output. After visit to local electronics and audio shop my problem got solved. Here’s how to make Samsung Smart TV works with external speakers.
Read moreWith 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.
Read moreOptimizing web applications is important because more economic web applications consume less CPU cycles and need less bandwidth – resources we have to pay for. It’s easy to turn on response compression on ASP.NET Core, but serving pre-compressed files needs more work. This blog post shows how to do it.
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As my ASP.NET Core code coverage reports work nice in Azure DevOps build pipeline I took step forward and made builds fail on Azure DevOps if percent of lines covered is below 60. This blog post shows how to do it using ReportGenerator and Build Quality Checks build tasks.
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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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Windows Subsystem for Linux is great feature for running Linux programs and trying out multiplatform ASP.NET Core applications under Linux. It is possible to browse and edit files on disks mounted to WSL but it didn’t worked with files on WSL “disks”. With next version of Windows it will change.
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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 moreAfter making ASP.NET Core code coverage reports work on local box I made step further and made code coverage reports available also on Azure DevOps. This blog post shows how to generate code coverage reports for .NET and ASP.NET Core applications on Azure DevOps.
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My first draft of hierarchy traversing component got some serious feedback and it’s time to make some changes before moving on to next challenges. Hierarchy traverser is not optimal yet as it uses tail-call recursion and it’s easy to run to stack overflow with it. This blog post solves this problem and prepares for next challenges like node cache and continue-from-given-node.
Read moreNext major update for Windows will introduce Windows Sandbox. It is temporary lightweight virtual machine that allow users and developers to run programs in isolation. This blog post is overview of Windows Sandbox from developers perspective.
Read moreRecently I blogged about how to generate nice code coverage reports for ASP.NET Core and .NET Core applications. This blog post focuses on how to leave out from code coverage all code that will not be covered with unit tests and get numbers shown on code coverage reports correct.
Read moreI started playing with small idea about how to go through document repository on SharePoint using more universal approach than just piling code to using-blocks and methods that depend on these. My goal was to separate in code hierarchy traversing logic from document exporting logic so I can use traversing part also in other projects on different types of hirarchies. Here is my nice and clean solution.
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