Enumerable.Zip is a fascinating LINQ operator. It threads or merges two collections of any type or length. It is not a very well known operator and I myself only come across it a little while ago. Let’s say we have 2 collections. The first is an integer collection and the second is a string collection … [Read more…]
I come across a requirement for one of my projects where I need to check if two XML strings are equivalent. They might not be exact match (that would be too easy, a strings compare would do), nor have same namespaces, prefix and child order. Also, I want to be able to exclude certain nodes … [Read more…]
In this post, I’m going to show how to revert multiple git commits in one go using CLI. Let’s say this is the git history A -> B -> C -> D -> E -> HEAD In this example, we want to revert back to commit B. In your Git Bash, run the following commands … [Read more…]
I had the need to log the current stack trace in a method to figure out which event handler calls the method in order to solve a bug. The method is commonly used in a number of different handlers. I find in the log that this method is called twice in a request that should … [Read more…]
I come across a bug in a method we have in our projects at work. The method takes a generic type and then it checks if the type is enum before it applies further logic to it. If the type is not an enum, it will throw an ArgumentException. The method is similar to the … [Read more…]
I had a junior developer commenting on a PR that it’s missing a null check before calling an extension method on a string as the string can be null and it would throw a null reference exception. This results in an interesting discussion among the developers. Let’s say the extension method looks something like this. … [Read more…]
I came across this article a while ago which was very interesting so it got my attention. Basically, LINQ may automatically optimize multiple methods by combining them or change the execution order. If you have OrderBy(…).First(…) or OrderBy(…).FirstOrDefault(…), it might not execute as you would expect. My first thought is it the First() or FirstOrDefault() … [Read more…]
As mentioned in the previous post, all the projects at work are in the process of upgrading to latest .NET Core 3+. In this post, I’ll be discussing another issue we come across during the upgrade. One of the projects has a custom Authorize attribute where we need to read the request body. The custom … [Read more…]
The problem All our projects are in .Net Core 2+. Since Microsoft announces end of support for .Net Core 2.2, we have been in the process of upgrading all the projects to the latest .Net Core version. Upgrading to .Net Core 3+ version means that we could use all the new features in C# 8, … [Read more…]
One of my recent tasks at work requires some XML manipulations. This includes reading value of an XML element, changing an element value, reading values of children nodes and reading the outer XML value of an element. In this post, I’m going to show how to do these using XDocument in .Net Core. We’ll use … [Read more…]