You probably know the situation: You want to get all records grouped by day, but you stored their creation date using getdate(), so now they all contain time as well as the date.
The solution until MS SQL 2008 was not pretty, however with MS SQL 2008 we finally have a “pure” date datatype.
Reading from registry in C# is very simple, so I was quite stumped when my code didn’t work.
The reason however, was very simple once found: The Wow6432Node…
Ever wanted something similar to javascript’s eval statement in C# ? Here’s how to do it.
If you’ve done any amount of website development, you know the issues with paging your data.
With MS SQL 2005 and newer there’s an easy way to do it in your SQL queries. And it even performs better to boot!
Here I’ll sum up how to write proper paging queries with superb performance.
In ASP.Net HttpHandlers cannot access the session state by default, in order to enable them to do so, you need to implement an interface.
However this is rather simple, since the interface is just a “marker interface” as MSDN calls it. Here’s how to do it.
lock keywordet i C# er en enkel måde at håndtere tråd sikkerhed på, og i mange tilfælde også den bedste måde.
Desværre bruger en del udviklere keywordet “forkert”, så her er et oprids, af hvad man bør gøre.
In C# there are a few limitations to what you may use as a generic type constraint. These include delegates and enums to name a few.
However there’s a somewhat easy way to work around this limitation…
I web applikationer har man tit behov for at cache f.eks. udtræk fra DB, det er dejlig nemt med HttpRuntime.Cache.
Men hvad gør man i ikke-web applikationer ?
Var keywordet i C# har alle efterhånden en mening om, og typisk er billedet meget sort/hvidt.
Så for at deltage lidt i “festen”, følger her min mening om var.
Men inden da er her lige en forklaring på var keywordet, til dem der ikke kender det.
Var bruges istedet for en type, når man deklarerer variable.
Yield har været med helt fra .Net 2.0 – alligevel bruges den ret sjældent.
Men hvad kan yield egentlig ?
Den kan bl.a. give en væsentligt pænere syntax i visse metoder.