c# - derp turkey

C# Quoted Printable

Enjoy! static string DecodeQuotedPrintables(string input) { var occurences = new Regex("(\\=[0-9A-F][0-9A-F])+"); var matches = occurences.Matches(input); foreach (Match match in matches) { byte[] bytes = new byte[match.Value.Length / 3]; for (int i = 0; i < match.Value.Length / 3; i ++) { bytes[

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C# cross-process synchronization with mutexes

This example shows how you can use a mutex in C# to perform cross-process locking. For me, I needed a way to perform file system synchronization across multiple processes. Mutexes provide locking at the OS level to allow you to block until the Mutex

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vNext ASP.NET 5 Custom Middleware

If you're curious about creating custom Middleware in ASP.NET 5 here are a few things I've come up with while playing around. First a little background... Middleware gets attached to the IApplicationBuilder inside of the Configure method of Startup.cs. Middleware allows you

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vNext C# Dependency Reference using NPM instead of NuGet

Natively, Visual Studio 2015 integrates with NuGet for project dependency resolution, see here for a bit more info. This workflow is heavily tied to NuGet, which in my opinion is both good and bad. While it's nice that Microsoft is making strides away from

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vNext Depedency Injection Overview

I've been playing around with the latest version (beta4) of ASP.NET 5 and vNext and I have to say I'm impressed. One of my favorite features is the addition of the Dependency Injection module that will become a staple of the .NET applications.

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C# Windows Service Startup Arguments

Here are a few tips on passing arguments to a .NET Windows Service. Install a Windows Service with Arguments I found the easiest way to install my service with a path that includes arguments, ala: c:\myservice\myservice.exe --port 8080 was to use

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Embedding DLLs and Resources in a C# Executable

In the needed to create a portable command line tool, I needed to make the footprint as small as possible. This involved embedding some resources as well as ILMerging the referenced assmeblies to make a single file that includes all dependencies. Embedding References I

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C# Process Tree

The usual System.Diagnostic.Process class does not contain a reference to the parent process. This can be problematic if you want to retrieve the full process tree for a specific process. This is a guide on how to build out a process tree

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JSON service with WPF

This is a code overview for creating a WPF endpoint that sends and receives JSON data. Assemblies references System.ServiceModel System.Runtime.Serialization System.ServiceModel.Web Configure the endpoint You can configure in the web.config your service endpoing by doing the following: <

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Preserving a stacktrace when rethrowing exception with ExceptionDispatchInfo

One of the annoyances with Exception handling in C# is that it is easy to stomp the stacktrace. Now everyone who has been in .NET for a while knows you can call throw inside a catch block to rethrow the exception properly... public void

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Validate mock arguments with Moq

There is a concept in testing known as spying. Spying includes validation that: a method was called a method was only called a specified number of times a method was called with specific arguments Using the Moq framework, we can achieve spying with Verifiable

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Mock multiple calls to the same method with Moq

I have a method that makes a series of calls to random to generate a pseudorandom alpha-numeric order number. In order to test this method I needed to call Next multiple times to generate the string, but how do you do this in Moq?

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Making internal types accessible in Moq

When unit testing, you may be trying to test an internal interface or class. This is often done by adding the InternalsAccessibleTo assembly attribute to your your class library which makes your internal types visible to your unit test assembly. However, if you're using

Coding

Assertions on JsonResult

Trying to unit test a JsonResult from a .NET MVC controller method can be difficult. Many times, the Data property is populated with an anonymous object created in the Controller. This can present a problem for unit testing. Here's how to get around those

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Deserialize JSON to a dynamic object

In C# you can use the System.Web.Helpers.Json Class to deserialize JSON into a dynamic object. This will save you a boat load of time if you are loading from a remote API. For example, attempting to read from the Yahoo API

asp.net mvc

ASP.NET MVC Cookie TempData Provider

TempData can be quite useful. I often use it for Flash messages or passing simple things between requests. However, the default implementation uses Session State and is called the SessionStateTempDataProvider. Session State is not exactly ideal for high performance web sites. In particular: Session

Coding

Amazon Route53 C# Examples - Reading Records

In a previous article I discussed adding records. In this article I'll discuss how to read the value of a record. ListResourceRecordSetsRequest You will need to use the ListResourceRecordSetsRequest class to build a request. This class retrieves a group of records from a specific

Coding

System.Net.Dns Flush Cache Issues

I was attempting to use the System.Net.Dns class query a host and check for an expected value. I quickly realized that DNS caching was causing issues. This lead me down an interesting path. The original code I was writing looked something like

Coding

Amazon Route53 C# Examples

It was difficult to find a good example for using the Route53 C# API for Amazon AWS. In this post I'll explain how the API works and show a few methods for adding and deleting DNS records from Amazon's Route53 system. Understanding the Route53

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Service Locator is not an anti-pattern

Several years ago I began using the Locator as a simplified way to break dependencies. I had read numerous articles on the subject and bore witness to "abuse" of common IoC Containers. This lead me down the path of using the Service

Coding

Copy a folder in AmazonS3 using the C# API

I was looking for examples of how to copy a folder to another location using the Amazon S3 API for C#. I really couldn't find anything... so I wrote my own. First to the code, then the explanation... This code takes two S3 paths

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Administration of IIS7 with Microsoft.Web.Administration

There are a variety of tools for programmatic administration of IIS7. Specifically there is a PowerShell provider, AppCmd.exe, and Microsoft.Web.Administration .NET library that are all discussed on the IIS website under the article Powerful Admin Tools. In looking for a way