Pages tagged: Dotnet

Utf8Json Media Formatters for ASP.Net Core

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Recently, I have been looking at the Utf8Json project and evaluating for use in our high performance payments API. Looking at the benchmarks on the Github page, and running my own benchmarks, the numbers stated seemed to tally up, so I built a few media formatters for aspnet core. Now, the project does already ship with some media formatters as a separate nuget package. However, I wanted to improve the following things:

OpenMessage 2017 Roadmap

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OpenMessage originally started out as a replacement for an internal library that was used across teams. At the time, the team I was apart of needed the latest version of dotnet core for the library where as the other team were stuck on RC1. They were also developing features for that version of the framework and a few pre-existing details that we were unhappy with (eg: the request/response implementation). With that in mind, I created a minimal wrapper for what we needed. Looking forward, I plan to dedicate a bit more time to the project and improve it.

DevOps

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As part of my role as a .Net Developer, I have recently been getting to grips with the build and deployment features of both Teamcity and Octopus Deploy. This has been making me think about the industry buzz word “DevOps” and exactly what that means.

Dev Lunches: What, Why, How

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If you’re not up-to-date, you fall behind. You fall behind in your work, which leads you to fall behind at home. If continued, it’s a never ending circle that can seem like climbing Everest in order to overcome. I propose that we, as developers, start doing is utilizing our free time to help not only ourselves but our co-workers too. We can do this via dev lunches.

Message Queue Fundementals: MSMQ

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MSMQ is Microsoft’s Message Queuing service that can be used to implement both synchronous and asynchronous solutions. Typically solutions are architectured using the available C++ API’s or via the relevant COM objects. The .Net Framework exposes the System.Messaging namespace which contains all the classes that you need to work with the MSMQ API.

Message Queue Fundementals: Introduction

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Message queues are a substantial part of modern day enterprise architectures and a vital part of providing scalable solutions. They are designed for asynchronous communication between different parts of the system. They help scale individual components of a system and increase reliability with the optional addition of the persistence of messages to a storage system.

Finding Reducible Expressions

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Today I just wanted to share a quick note regarding a Stack Overflow answer that I recently came across. In the answer the author explains that a call to Expression.CanReduce will typically return false, while Expression.Reduce() will return the current expression. The author continues to state that one of the types that overrides Expression.Reduce() and Expression.CanReduce is MemberInitExpression.

Unit Testing Equals The Forgotten Tests

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Today I wanted to cover something that is not often covered when unit testing an object. If an object has the Equals method overridden, then there are a number of tests that we should be running as a minimum

SAP Business One V9 Version Strings

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Version | Patch Level ----------------------- 900046 | 00 900052 | 01 900053 | 01 Hotfix 1 900055 | 03 900056 | 04 900058 | 06 900059 | 07 900060 | 08 902000 | 09 902001 | 09 Hotfix 1 902002 | 10 Note: I added the Hotfix 1 to clarify. I believe these are correct, I can’t find a definitive source to verify these results. Then in order to check the target databases version, I ran the following against the target database:

Becoming An MCP

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As the title suggests, today I passed the 70-483 Programming in C# exam to offically become a Microsoft Certifed Professional.

Using IDisposible correctly

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In this article, I am going to show you how to use the IDisposable interface correctly in your code. When I read others code, it is easy to pick up on subtle bugs. We need to begin to train ourselves to see the bugs and we do this by understanding what we are using. Before we begin, we need to make sure that we understand a core piece of computer science theory: Destructors.

Semaphore vs SeamphoreSlim Micro Benchmark

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In this post, I am going to show a small micro-benchmark to demonstrate the performance difference between the Semaphore and SemaphoreSlim classes in C#. A Semaphore is often used to restrict the number of threads than can access some (physical or logical) resource. In this case, we want the restriction to be as little as possible.

Flicker free forms and listview in .Net

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On a project I have been working on recently, I came across a problem where under Windows an Mdi Child form would flicker when it loads. Trying to find information on what was the cause of this was near impossible. I ended up trying a lot of code snippets that I found when googling the problem and this is what I have come up with.

Extension methods in dotnet

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In this article we will take a look at what extension methods are and how to use them in .Net. Personally, they are one of the best things that has been introduced into the .Net framework in terms of readability. I will take you through what extension methods are, how to create them (in c# and vb) then I will show you some of the extension methods that I have created (in c# only, conversion is for you to try).