Array Sort C# Example

Example: How to sort an array of DirectoryInfo objects by Delegate and by Lambda Expression

// Get array of directories

DirectoryInfo tempTopDirectory = new DirectoryInfo("C:\\Temp1");

DirectoryInfo[] tempSubdirectories = tempTopDirectory.GetDirectories();

// Sort directories array by Name using delegate

Array.Sort(tempSubdirectories, delegate(DirectoryInfo x, DirectoryInfo y) { return x.Name.CompareTo(y.Name); });

// Sort directories array by Name using lambda expression

Array.Sort(tempSubdirectories, (x, y) => x.Name.CompareTo(y.Name));

// Sort descending by comparing "y" to "x" instead of "x" to "y".

Array.Sort(tempSubdirectories, (x, y) => y.Name.CompareTo(x.Name));

// Sort by creation date time

Array.Sort(tempSubdirectories, (x, y) => x.CreationTime.CompareTo(y.CreationTime));

References

Array.Sort(T) Method (T[], Comparison(T)) (System)
http://msdn.microsoft.com/en-us/library/cxt053xf(v=vs.110).aspx

Lambda Expressions (C# Programming Guide)
http://msdn.microsoft.com/en-us/library/bb397687.aspx