d-fens GmbH
Audit and Consulting of Information Systems and Business Processes
Anything related to technology
Today’s post title is rather lengthly so I keep the introduction short and come right to the point: when using OData (or any web services therefore) it can become quite hard to keep the actual business logic separate and not to mix things where they do not belong. At least for me, as I have to admit that this happened […]
If you are using LocalDB and want to create an empty database you should perform the following steps. Go to Visual Studio Server Explorer | Data Connections Select Add Connection from the context menu Change Data Source to Microsoft SQL Server Database File (i.e. LocalDB) Set the Database file name by entering a database name and path that corresponds to […]
For one of our customers we had to implement Cookie handling for authentication purposes. This means reading the session token out of the Set-Cookie header and send the session token in the Cookie header of every request. When using the HttpClient from System.Net.Http there are two possibilites to do that. Either by passing a HttpClientHandler with a CookieContainer to the […]
While I was working with Excel of Office 365 I wanted to load and evaluate data from one of our Odata services we implemented. Suddenly I faced a strange issue: […]
A so called SSL Certificate is used to verify the security of a website. With such a certificate the communication between a client and a webserver can be secured by encrypting the communication so that no one outside of the connection can read the data which is transferred between them. This is used to make sure no one can read […]
On Monday and Tuesday, the 21st and the 22nd of November, our company organized an event. A Hackathon. What’s a Hackathon? “A hackathon (also known as a hack day, hackfest or codefest) is a design sprint-like event in which computer programmers and others involved in software development, including graphic designers, interface designers, project managers, and others, often including subject-matter-experts, collaborate […]
The title of today’s post might sound a little bit provoking, as originally MEF and StructureMap are not meant for the same use cases. However, as there is a great deal of overlapping functionality in StructureMap over MEF (and chances are high one is using an IoC framework anyway), it makes sense to check if we can reduce our arsenal […]
While doing some tests with our new TraceListener and log server I did some tests where I wanted to find out how long the log server would take to start accepting messages. So I started to constantly send messages from the console: When I looked at the server logs I noticed that the arriving messages came in unusually slow. So […]
Recently I started writing a PowerShell binary module in C# (mainly due to facilitate testing and move away from Pester limitations). In this post I will describe the format of […]
When integrating back end systems we very often would like our build server to run integration tests against our test evironments. The problem is that we do not want to […]
Microsoft .NET offers a very flexible logging system exposed via the System.Diagnostics namespace. Unfortunately (and not surprisingly), by default the pre-packaged listeners do not support writing messages to log4net directly. However, we can extend the logging outputs by implementing custom TraceListeners and when asking our favourite search engine for “TraceListener log4net” we find there are already plenty of implementations of […]
Todays blog post is about setting up a PowerShell remote session configuration on a Windows machine. A PowerShell remote session configuration can be used when connecting from another machine (hereinafter called as Client) to the machine the PoSH remote session configuration resides on (hereinafter called as Target) using Enter-PSSession Cmdlet. A PoSH remote session configuration allows you to define under […]
One of the cool features of PowerShell script based Cmdlets is the possibility to define default values for Cmdlet parameters. This is typically done like this: Whenever we invoke such a Cmdlet without specifying the Name parameter the PowerShell runtime will insert the value my default value into that parameter. C# based PSCmdlet provide a similar approach to this by […]
For years all our PowerShell modules we released were script modules (i.e. they were written in PowerShell). However, it is certainly possible to write PowerShell modules in C# as binary modules. Of course there are already plenty discussions whether one or the other approach is better. It really depends on the exact requirements. For us the limitations of Pester (especially […]
A few months ago we started to publish our PowerShell modules to PowerShellGallery. PowerShellGallery visualizes the PSData defined in PrivateData of module manifest, which got introduced in PowerShell 5. PrivateData part of a module manifest file created with the New-ModuleManifest Cmdlet of PowerShell 5. Because of that we extended the module manifest files of our existing modules with the PrivateData […]
Before PowerShell 5 we had to revert to reflection to be able to display constructor information in PowerShell (see Get-Constructor Fun for details). And because we used that functionality so often we created a Cmdlet Get-Constructor that is part of our biz.dfch.PS.System.Utilities module. However with PowerShell 5 this is obsolete as it is now built into the language and runtime […]
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