Entity Framework Code First Migrations allows you to handle changes in your model (C#) by generating “migration scripts” for keeping the DB in sync with the code. It works very well. But I never used it in a project with more than 1 developer. I think we could run in different problems. And managing all… Read More »
Microsoft has released a kind of “mocking” framework in Visual Studio 2012. In most cases when we are writing unit tests, we’re using frameworks like Moq, which helps us creating Mocks/Stubs. (For example: Mocking the data layer so that we can test the business layer.) In this tutorial, you see how to use “Stub” and… Read More »
In the past few projects I saw a lot of wrong implemented Singleton patterns. Since Microsoft released the class “Lazy” in .NET 4.0, Singleton is much easier to implement. So… be lazy and use the class Lazy 😉 Here is an example: This code here initializes the “_instance” variable when accessing the the “Instance” property… Read More »
If you never heard about the “Onion Architecture”, you should read Jeffrey Palermos blog post. He’s the Onion-Architecture-Guru 😉 I created a very small demo VS.NET solution, which shows how I would apply this type of architecture in a project. (The download link is at the bottom of this post.) The following graph displays the… Read More »
In my last project (WPF/MVVM) I had to deal with a lot of data in the application. I stored the data in a ObservableCollection and bound the collection to a chart and a grid. Everything worked very well. But the data in the ObservableCollection changed frequently. By default, the ObservableCollection notifies every change in the… Read More »
With the Code First approach we can create clean entities without any EF specific code. After the first demo, I saw that you have to deal with the IDbSet interface, which is placed in the Entity Framework library. When you place the entities in your business dll you have to reference the EF library. This… Read More »
It is not possible to deploy referenced libraries with the assembly which contains the crm plugins. You can install the libraries into the GAC, but it isn’t really a good solution. Two weeks ago, I found a cool solution in the internet about embedding referenced assemblies into one library or exe. I implemented this code… Read More »
In my first crm 2011 project I struggled a little bit with the early binding functionality. When you generate the entities with CrmSvcUtil and place the entities in the plugin project everything works fine. But when you seperate the entities from you plugin logic in a other dll, early binding won’t work. The first solution… Read More »
When you deal with very dynamic dictionaries, you have always to check if the data exists before accessing it. This can blow up your code. With the dynamic data type (.NET 4.0) you can do this a little bit more elegant. Example: Here are my data classes. You see that the Person class has a… Read More »
One of the new WCF 4.0 features is routing. Routing can be used for multiple purposes: – Service versioning – “Extended” load balacing – Content-based routing scenario – Service partitioning – Protocol bridging – etc. In this example, I have two person services. One in London and one in Paris. The client knows only the… Read More »