Category Archives: .Net

Creating an OData V4 service

I’m writing an agenda application, where the data can be delivered to the calendar control using either REST or OData V4. I choose the latter because this will allow for much more flexibility afterwards. I already have an MVC 5 … Continue reading

Posted in .Net, Codeproject, Development, MVC, MVC5, Web API | Tagged | 8 Comments

Using the repository pattern

In most applications database access is necessary. In .NET there are 2 main ways of doing this: ADO.NET or using the Entity Framework. Of course there are great 3rd party libraries like NHibernate that do the trick as well, and … Continue reading

Posted in .Net, Architecture, Codeproject, Development, MVC, WCF | Tagged | 3 Comments

Mocking functionality using MOQ

What is wrong with this code? class Program { static void Main(string[] args) { DateTime dob = new DateTime(1967, 7, 9); int days = CalcDays(dob); Console.WriteLine($”Days: {days}”); }     private static int CalcDays(DateTime dob) { return (DateTime.Today – dob).Days; } … Continue reading

Posted in .Net, Codeproject, Development, OOAD, Testing | Tagged | 1 Comment

Grasshopper Unit testing

“I have created my code, split out some functionality and written the tests. But the mocks have become a real mess, and much more work than I had thought it would be. Can you help me, Sensei?” “Of course. Show … Continue reading

Posted in .Net, Codeproject, Development, Methodology, Testing | Tagged , , | 3 Comments

Let IntelliTest generate your tests!

We corrected our function to calculate the GCD so that it now runs correctly. But is the function correct in all the cases? Have we really tested everything? It would be nice if there was a tool that could tell … Continue reading

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How to set up a Parameterized Unit Test

In my previous post we saw how to set up unit testing using Visual Studio. The code we want to test is a (simple) function to calculate the greatest common divisor, and we wrote our first test. The test we … Continue reading

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Setting up unit testing

Introduction In the previous posts I talked about unit testing. I gave some background, and I explained the flow of Test-driven Development (TDD). So now is the time to set things up. In this article I will use the calculation … Continue reading

Posted in .Net, Codeproject, Development, Methodology, Testing | Tagged | 3 Comments

Could not load file or assembly ‘System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’

When creating a new MVC5 application using VS2013 I got the following error: Could not load file or assembly ‘System.Web.Http, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ or one of its dependencies. The located assembly’s manifest definition does not match the assembly reference. (Exception … Continue reading

Posted in .Net, Development, MVC, MVC5, Web API | 2 Comments

“Object reference not set to an instance of an object” when building my cloud project

In my Azure project I have a worker role and a wcf role. When compiling it failed (with no obvious reason) with this message in the output window: Error: Object reference not set to an instance of an object There … Continue reading

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XslLoadException: The type or namespace name ‘SecurityRulesAttribute’ does not exist in the namespace ‘System.Security’ (are you missing an assembly reference?)

While porting a project from .Net 3.5 to .Net 4 we got this weird error. The error occurs when loading an XSLT in memory. Here is the failing piece of code (simplified): private static XslCompiledTransform ReadXslt(string fname) { XslCompiledTransform xsl … Continue reading

Posted in .Net, Development | Tagged , , | 1 Comment