C# Expressions — Workflow Foundation in .NET 4.5

Basically, when you see a new version of the .NET Framework coming out, you think of it as “an improvement” to the previous version. With Workflow Foundation (WF) this was “brutally” different in the jump from WF3 to WF4. In this case, the…

Query Execution Plan

First of all: Ignore the DB Modeling, DB Design mistakes and so on. This post relates to a DB made by a company a decade ago and I will not question the design choices.

So, the topic: migrating from SQLServer 2000 to SQLServer 2008. This is NOT a simple and direct…

nop — No Operation

If you ever looked at your code compiled in DebugMode Versus ReleaseMode you most certainly saw a few differences. One of those differences is the higher presence of the nop IL instruction in the DebugMode. What does this instruction do? Well, nothing “meaningful”…

ExpressionServices

Writing code dynamically can be very useful in some scenarios. In a recent WF project I needed to build a workflow in code and save it to XAML, executing this saved workflow definition latter on. But there’s a problem: Lambda expressions do not serialize to XAML. This is where the…

WOW64 — WebApps

In a recent project I had to migrate some complex (this is relative) WebApps to a 64bits Windows Server 2008 R2. I’m not a “SysAdmin” (not close), but… work is work! The main issue is that we’re talking about 32 bits ASP.NET 1.1 applications that use the WindowsRegistry. When you merge a registry…