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Dictionaries are unordered data structures. Key/value pairs aren’t stored in sorted order. When you want the Dictionary in sorted order, there are two simple options: I’ll show both options. Sort Dictionary with OrderBy() Use OrderBy() (from System.Linq) to sort the Dictionary by key or value. It returns the Dictionary’s KeyValuePairs in ascending sorted order. I’ll … Read more
To sort a list, except for the first element, you need to: This can be accomplished in a single line using Linq methods: I’ll show a full example and explain how this works. Example – sorting a list of people Let’s say we have a list of people, such as the following: Here’s how to … Read more
Use the OrderBy() and ThenBy() Linq methods when you want to sort a list by multiple fields, like this: Ascending vs Descending order By default, OrderBy() and ThenBy() sort in ascending order. If you want to sort by descending order, use the Descending version of each method. For example, if I want to sort NFL … Read more
One day I decided to challenge myself by trying to implement multithreaded quicksort. I wanted to see how it would compare to the built-in Array.Sort() method. I came up with two algorithms that were 2-4x faster than Array.Sort(): After continuing to tinker, in attempts to further optimize, I came across the AsParallel().OrderBy() method (PLINQ). After … Read more