Yes, Eric Lippert, principal developer of C# compiler, has been drumming for a long time that query should never have a side effect. It should be about filterin

Yes, Eric Lippert, principal developer of C# compiler, has been drumming for a long time that query should never have a side effect. It should be about filtering and sorting the data. See: http://blogs.msdn.com/b/ericlippert/archive/2009/05/18/foreach-vs-foreach.aspx http://blogs.msdn.com/b/ericlippert/archive/2009/05/18/forea...