C#

I needed a quick’n’dirty way to inspect objects returned from external source. I wrote simple object properties dumping mechanism you can use to investigate unknown objects. It is really quick and really dirty.

Sometimes we need publisher/subscriber messaging in our applications to broadcast messages to different parts of system in real time. We can always build our own solution for this but we can also use something that is already there. In this posting I will show you how to use MemBus to send messages from MDI parent form to MDI child forms. (more…)

I made quick comparison of performance of four DI/IoC containers. I measured Unity,Castle Windsor, StructureMap and Ninject in two scenarios – resolving objects with empty constructor and resolving object with injected parameters in its constructor. Results are here.

In my last post Find out how long your method runs I introduced how to measure the speed of code using actions. In this posting I will make a step further and give you some ideas about how to create easily measurable code units and how to build measurable scenarios of them. As a foundation I use simplified versions of patterns like Command and Unit of Work.

During my large database experiment I wrote simple solution for paged queries that I can use in my repositories. This far my experiments have shown pretty good results and I think it is time to share some of my code with you. In this posting I will show you how to create paged results using NHibernate and Entity Framework based repositories.

I am making some experiments with large database and different O/R-mappers. To make it easier for me to measure the time that code takes to run I wrote simple command class that uses Stopwatch class and measures how long it takes for action to run. I this posting I will show you my class and explain how to use it.

Lists and their performance has been hot discussion topic for years. I have seen many examples and read a lot of stories about List class and I made conclusion that there is too much pointless opinions about it. In this posting I will show you how List performs when adding elements to it and how it works internally. Be prepared for interesting discussion!

Today I worked out simple application side object locking solution for one server scenario. My motivation came from ASP.NET architecture forum thread How to solve concurrent site issue where one user asks for locking solution that works without changing database. Here is my simple and primitive solution that should help this guy out. I added also sample solution to this posting.

In one of my community projects I needed to output some listings as Excel file. As installing Excel to server is non-sense that I was easily able to avoid I found simple solution for Excel 2007 files – open-source project called ExcelPackage. In this posting I will show you hot to create simple event attendees report in Excel 2007 format using ExcelPackage.

I was converting the example code of my Windows Azure session to Visual Studio 2010 solution called MVC Time Planner when I discovered some date and time offset issues in my JavaScript code. In this posting I will show you some useful tricks you can use to convert JavaScript dates and times to timestamps.