ASP.NET Core, Blazor, .NET, Azure, SharePoint, IoT
On the search for running development environments on cloud I stumbled upon service calles Visual Studio Codespaces. It’s nice service that moves development and debugging workloads to cloud and it makes it possible to use lightweight machines like tablets and hybrids for development. Here’s my overview of how to build ASP.NET Core web applications on codespaces and Visual Studio Code.
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A little surprise during COVID-19 time coding. I cloned repo to my dev box, opened it in Visual Studio and hit F5. IIS Express starts and browser opens but it shows just error about site to be unreachable. After almost getting grey hair I found out what’s wrong. Here’s the solution.
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Something funny to end this week. When checking my Twitter feeds I found a kinky tweet about logging .NET Core messages to Notepad window. Yes, you heard right – .NET Core logger for Notepad. It’s not real, you want to say, but it is. And here’s how it works :)
Read moreTimes ago I blogged about micro ORM-s. I have been busy through all Covid-19 times learning technical side of DDD and during that I met again my old friend Dapper. There are applications where Dapper is used to query read-only data without overhead coming with ORM-s. Also there are simple applications where for one or another reason developers decided to keep as close to raw SQL as possible. This blog post is brief introduction to Dapper anbd how to use it in ASP.NET Core applications.
Read moreSome properties of model classes come as enums and we want to show enum values in select list when edit form is opened. Sometimes we want enum element names but sometimes we want to use custom names or even translations. his blog post demonstrates how to get enum element names to select list on ASP.NET Core.
Read moreUsing query string in controller unit tests is actually easy until we don’t need anything more advanced. We can buld up a string with query parameters and go with it. But what if things get more complex and we need encoding or multiple values? Here’s how to build safe query string for ASP.NET COre controller unit tests.
Read moreMultitenant wep applications detect current tenant usually by URL checking name of first level folder or subdomain. Usually tenants are defined by subdomain as it is easier to distribute them over data center, cloud services or hosting accounts. This blog post demonstrates how to build Azure DNS service client to create DNS records for multitenant application subdomains.
Read moreAfter getting fake authenticated user to ASP.NET Core integration tests I made step further and introduced the way to use different user accounts. Using multiple users and roles instead of one test users is very common scenario in web applications. During my carreer I have seen only few business applications that doesn’t use different roles. This blog post demonstrates how to inject users dynamically to ASP.NET Core integration tests.
Read moreAfter getting done with fake users for ASP.NET Core controller unit tests I wanted to make fake users available also in integration tests. It took some inventing and hacking but I made it work. This blog post shows you how to create fake users for ASP.NET Core integration tests and write effective extension methods to keep integration tests shorter.
Read moreI think most of ASP.NET Core applications have authentication enabled. When writing unit tests for controllers we have one set of tests that need authenticated user and other set of tests that need anonymous user. Faking User property of controller is a little bit tricky. This blog post shows how to do it.
Read moreLast year I had some projects where I had to embed Power BI reports to ASP.NET Core applications. There were easy cases that solved practically with copy-paste but I also had more complex situation where server-side code was needed because application uses custom authentication instead of Azure AD. This blog post covers both scenarios for embedding Power BI reportis to ASP.NET Core applications.
Read moreIn one of my projects I have some ASP.NET Core views that display multiple tables with reporting data. Data comes from SQL Server views and stored procedures and these can be modified in database without deploying application to server again. I came out with very common solution in ASP.NET Core to solve this problem using raw SQL commands and shared views for DataTable and DataSet. Here’s what I did.
Read moreMy previous posts about tenant-based dependency injection and using composite command in ASP.NET Core culminated with idea to use configurable composite commands in multi-tenant ASP.NET Core applications. Configurable composite commands make it easy to tweak save and update processes that contain multiple steps of what some can be custom and their activation is based on tenant configuration. Here’s how to build thost composite commands.
Read moreOne need in multitenant applications is injecting dependencies based on tenant configuration. It can be actually more complex as instances may need constructor parameters. Here is my example of dynamic injection of multiple file clients in ASP.NET Core multi-tenant web application.
Read moreASP.NET Core supports gRPC protocol that is about to replace legacy SOAP services with more performant and powerful protocol that is easier to use and support. This blog post shows how to build gRPC service and client on Visual Studio and ASP.NET Core.
Read moreMy introduction to composite command pattern was more theoretical and focused to high-level details. This blog post focuses on implementation details and introduces how to use composite command in ASP.NET Core to upload and process photos.
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I thought first my ASP.NET Core edition of Hello, Blinky will be my last Hello, Blinky for long time. But then something reminded me of Blazor and I thought why not build Blazor edition of Hello, Blinky for Windows IoT Core and Raspberry Pi? After some hacking I made it work. Here’s my Hello, Blinky for Blazor.
Read moreJust wrote down something I had to went through with students in one of my classes – making file upload work in ASP.NET Core application. Here are samples of single and multiple file uploads using simple controller actions.
Read moreASP.NET Core 3.0 applications doesn’t build views automatically by default when changes are made. Views are built when application compiles and this is expected final state for views. It’s still possible to make ASP.NET Core application build views when changes are made. Most popular case is when application is running on Visual Studio and we are working on cosmetics of view.
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With Visual Studio 2019 we can publish ASP.NET Core 3.0 applications as self-contained executable. It’s specially useful for environments where ASP.NET Core 3.0 is not installed or where we don’t have permissions to install it. Here’s how to do it.
Read moreOnce upon a time I worked out simple file client generalization so my applications can keep files on local machine or somewhere on the cloud without changes in application code. This blog post shows how to generalize file access in web applications and provides implementations for local and cloud file clients.
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