.NET

All .NET related posts

MVC5 came with some really nice stuff. In this blog post I’ll dig into the authentication with external logins as Microsoft calls them. We call them often social logins. The way this is done is quite different than in MVC4. Where MVC4 depended on webmatrix MVC5 makes use of OWIN […]

Social login with OWIN Authentication in MVC5

9 Nov, 2013 in .NET tagged ASP.NET / MVC / MVC5 / OWIN by Stefan

Recent in my project we had a problem with a TFS build when calculating the code metrics of the code. The error we ran into was the CA0055 Could not load file. Searching on the internet gave me some hints but not the solution in my case.

Solving: CA0055 Could Not Load dll in Code Metrics

20 Oct, 2013 in .NET tagged Code Metrics / NuGet / TFS by Stefan

Once you publish an Web API, it’s set stone. Publishing an API is not a trivial move to do. Users or customers rely on the API not changing after publishing. But however requirements will change always. So there’s a need to evolve the API without breaking existing clients.

Best practices to version Web API

27 Sep, 2013 in .NET tagged ASP.NET / Best Practices / WebApi by Stefan

What is SignalR In a nutshell, SignalR allows you to pass data between client and server in realtime. It will run on .Net 4.0 or 4.5 and to get websockets running, you will need IIS8 or IIS8 Express. That said, it will run on older versions of IIS and will […]

SignalR to synchronize web pages real-time

25 Nov, 2012 in .NET / jQuery tagged SignalR by Stefan

Should I call EnsureChildControls in code? It depends on different scenarios. Actually, EnsureChildControls method determines whether the server control contains child controls. If it does not, it creates child controls. This method first checks the current value of the ChildControlsCreated property. If this value is false, the CreateChildControls method is […]

When to call EnsureChildControls in custom controls

5 Feb, 2012 in .NET tagged ASP.NET by Stefan

I wrote web part that uses Repeater control to create some repeating blocks of output. Each of these blocks has Button control in it. When I ran web part under SharePoint I got the following error: Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration […]

Invalid postback or callback argument. Event validation is enabled

21 Aug, 2011 in .NET tagged ASP.NET / Event validation by Stefan

When working with generated code, I don’t want this to affect my code coverage, code metrics or code analysis. All these statistics are interesting over code that really matters. To exclude generated code from these statistics you can use a few attributes. GeneratedCodeAttribute, this will exclude the code for code […]

Exclude code from test coverage and code analysis

8 Jul, 2011 in .NET tagged .NET / Generated Code / Unit Testing by Stefan

WCF client cannot be used inside a Using block because they may unexpectedly throw an exception. Even if you catch the exception, it is possible that a connection will be left open. Why is this IDisposable implementation so different from all the others in the .NET Framework. The first problem […]

WCF Dispose problem with using statement

4 Mar, 2011 in .NET tagged .NET / Exceptions / Using statement / WCF by Stefan

Using the SharpZipLib it’s possible to zip and unzip files. This can be a good solution when file size matters. Downloading files that are ziped can save many bandwidth. In this case a object is serialized to XML and put into a ZipOutputStream which belongs to SharpZipLib. public static byte[] […]

How to download MemoryStream as a file in zip

25 Feb, 2011 in .NET tagged MemoryStream / SharpZipLib / Xml by Stefan

The XmlSerializer can cause serious problems in multithreaded environments. See this piece of code. [ThreadStatic] private static XmlSerializer xmlSerializer = new XmlSerializer(typeof(Mailpack), Namespace); private static string SerialiseAssemblageResultaat(Mailpack mailpack) { StringBuilder xmlString = new StringBuilder(); TextWriter xmlWriter = new StringWriter(xmlString); try { xmlSerializer.Serialize(xmlWriter, mailpack); return xmlString.ToString(); } finally { xmlWriter.Close(); xmlWriter.Dispose(); […]

Using the XmlSerializer in multithreaded applications

12 Feb, 2011 in .NET tagged Singleton / Theading / XmlSerializer / XmlSerializerFactory by Stefan

When having hosted a WCF webservice that is secured by a certificate. Opening the service with a browser al the security stuff is handled by the browser. This situation is different. The caller is a .NET Click-once application, that is hosted near the webservice. This application has to handle the […]

Secure WCF communication with certificates

26 Jan, 2011 in .NET tagged .NET / Security / WCF by Stefan

TheRoks

Thoughts on SharePoint and .NET