Start with Surface Duo development on preview emulator and SDK today

Surface Neo and Surface Duo are new devices by Microsoft, planned to launch for holidays season this year. Surface Neo runs Windows and Surface Duo is based on Android. For Surface Duo there’s already preview tooling and SDK available by Microsoft. Here’s the introduction to Surface Duo development, tools and patterns.

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Creating subdomains to Azure DNS from ASP.NET Core

Multitenant 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.

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Inject users and roles dynamically to ASP.NET Core integration tests

After 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.

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Embedded Power BI reports with ASP.NET Core

Last 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.

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DataSet and DataTable based ad-hoc reporting with ASP.NET Core

In 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.

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Get notification to e-mail when I post something

First of all – thanks to all my blog readers to be here with me. Last year was the one where the most important metric of blogs – number of page views – made its yearly record and reached a million. What should I say? Thanks a million! As some of you have asked my for one feature my blog should have I’m glad to tell you it’s here – yes, you can get e-mail notifications about new posts published here.

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Using CSOM from Azure Functions

I got back to active SharePoint development some months ago and first thing to do was to port bunch of workflows from in-prem SharePoint to cloud. Where I live we don’t usually have any simple workflows. Most of them need some backing code due to custom logic. So, my only option was to go with Microsoft Flow or Azure Logic Apps and Azure Functions. Here’s the project with one dummy function to get started.

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Logging NHibernate SQL commands to debug window

I know there are advanced tools like SQL Server Profiler and NHibernate Profiler but often I want to see NHibernate queries just in debug window to have overview of what’s going on. It’s specially important when improving some legacy application where previous developers had not much idea how NHibernate works. Here’s the simple solution I’m using to get SQL generated by NHibernate to Visual Studio debug window.

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Using configurable composite command in multi-tenant ASP.NET Core application

My 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.

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Readable fluent queries with Entity Framework Core

After my first experiments with Query Specification pattern on Entity Framework Core I came to interesting idea – why not using extension methods that wrap query specifications or add directly some more conditions to IQueryable the way that queries are easy to read. Here’s my experiment and thoughts of fluent readable queries.

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Implementing Query Specification pattern in Entity Framework Core

My previous blog post No need for repositories and unit of work with Entity Framework Core showed how Repository and Unit of Work patterns are already implemented in Entity Framework Code (and NHibernate) and how we can use IDataContext generalization to get ORM-s behind same interface. As I’m still trying to find out what’s the best place where to isolate queries without exposing IQueryable I started playing with Query Specification pattern.

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