LINQ in Action - THE LINQ book

Some time ago, I was talking to some members of a team that used LINQ and LINQ to XML in one particular area of their code.  They said that the code written using a conventional approach to XML was in the order of 6000 lines of code.  When re-written using LINQ and LINQ to XML, it was around 800 lines of code.  It was faster to ...

This is a bit of a geeky post for the LINQ and LINQ to XML folks.  This post introduces a GroupAdjacent generic extension method that groups elements in a collection with adjacent elements based on a common key.  For example, grouping the following array creates six groups (not 3, as with GroupBy):  int[] ia = new int[] { 1, 0, 0, ...