.NET

Coming soon to C#: Null propagating operator

C# 6.0 introduces language feature called null propagation. It’s about avoiding all this if-else mess in most sanity checks that avoid NullReferenceException.Of course, null checks can be found also from other parts of code that doesn’t necessarily deal with sanity checks. Let’s see how new null propagation feature help us write cleaner code.

Speaking at SDC 2014

Next week I have honor to speak at Software Development Conference 2014. It is held on 01-02.12 at Arnhem, Netherlands. I have sessions on both days – in total four sessions – and here is the short overview of these. It’s all mostly about ASP.NET, ASP.NET vNext, and cloud but there’s also something about legacy code. I hope you will join me!

Generalizing storage access for Windows Phone and WinRT apps

When building application that works both on WinRT and Window Phone you use Portable Class Libraries (PCL) for shared classes. As there are many application specific things that are not same on different platforms or that are not supported by PCL then you have to make some architectural decisions when creating shared functionalities. In this posting I will focus on persisting data for offline use.

Microsoft .NET: Architecting Applications for the Enterprise

Enterprise applications need good architecture to survive ever-changing demands of customers. At same time these systems must be stable, convenient and easy to use which leads us to need of good architecting skills. Some customers need desktop applications while others need web-based and mobile applications. Making good architectural decisions is not easy and this is […]

Understanding exceptions artistic way

Finding out reason of bug in code is not always easy thing to do. But it can be extremely hard if you have no idea what do with information that exceptions provide you. In this posting I introduce you weird artistic handling of exceptions and unfortunately this story comes from real life.

Using Microsoft Solver Foundation to solve linear programming tasks

One of soon-to-starts projects uses linear programming for some optimizations. As it is not very familiar topic to me I started looking for examples and tools so I am prepared better when action starts. In this posting I will show you how to solve simple linear programming tasks using Microsoft Solver Foundation – free math package available by DevLabs.

How to make NLog create separate log per service thread

NLog on is popular logging component for .NET applications. I am using it in one project where I built multi-threaded server that is running similar threads with different configuration. As those thread are independent services I needed way how to configure NLog to create different log file for each thread. Here is my solution.

Adding multiple data importers support to web applications

I’m building web application for customer and there is requirement that users must be able to import data in different formats. Today we will support XLSX and ODF as import formats and some other formats are waiting. I wanted to be able to add new importers on the fly so I don’t have to deploy web application again when I add new importer or change some existing one. In this posting I will show you how to build generic importers support to your web application.

Using TPL and PLINQ to raise performance of feed aggregator

In this posting I will show you how to use Task Parallel Library (TPL) and PLINQ features to boost performance of simple RSS-feed aggregator. I will use here only very basic .NET classes that almost every developer starts from when learning parallel programming. Of course, we will also measure how every optimization affects performance of feed aggregator.

Writing simple named pipes server in C#

I solved a little problem last night when playing with named pipes. I created named pipe that writes all output to file. Named pipe is opened for all users in machine. In this posting I will show you simple class that works as pipe server.

Setting up Windows Home Server 2011 development environment

For Windows Home Server 2011 (WHS) there are new API-s available you can use to extend WHS web and desktop interfaces. Actually there is no Windows Home Server SDK anymore – now we have common Windows Server Solutions (WSS) SDK that works also for Windows Small Business Server, Windows Storage Server and Windows MultiPoint Server. In this posting I will show you how to create development environment for Windows Home Server 2011.

Using Lazy and abstract wrapper class to lazy-load complex system parameters

.NET Framework 4.0 introduced new class called Lazy and I wrote blog post about it: .Net Framework 4.0: Using System.Lazy. One thing is annoying for me – we have to keep lazy loaded value and its value loader as separate things. In this posting I will introduce you my Lazy wrapper for complex to get system parameters that uses template method to keep lazy value loader in parameter class.

Using Lucene.NET search engine library in .NET applications

Adding search capabilities to applications is something that users often ask. Sometimes it is not enough to have just filters on lists. Instead of going with mainstream and write complex SQL queries we can be smarter and use specialized indexing and search solutions that perform way better than custom large SQL queries that I consider as anti-pattern for searching something. In this posting I will introduce you Lucene.NET indexing and search engine and show you how to use it in your applications.

Importing issues from Jira to database using C#

I am evaluating hosted Jira Studio and it likes me more and more when I’m using it. As hosted service is not in our premises and contains important information about our work I was asked to find out if there’s a way how to read data from Jira Studio and save it to our local data store. In this posting I will show you a simple way how to read issues from Jira Studio and save them to database.

dotPeek–JetBrains replaces .NET Reflector

Today I got e-mail from JetBrains stating that there is dotPeek early build available for download. dotPeek is .NET assemblies decompiler that is offered for free and that should replace .NET Reflector (not free anymore). dotPeek will also be part of ReSharper 6. In this posting I will give you brief introduction about dotPeek.

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