Question

The following fragment deletes “DpsRecord” elements which contain “Name” element which value contains “JOSE”. However, I don’t understand how after applying Linq query to root and getting dpsRecords ( left side of query ) and then removing in dpsRecords, elements are also removed in root.

XElement root = XElement.Load("input.xml");
IEnumerable<XElement> dpsRecords = from elem in
                        root.Elements("DpsRecord")
                        where (((string)elem.Element("Name")).Contains("JOSE"))              
                        select elem;
foreach (XElement elem in dpsRecords)
{
   elem.Remove();
}
root.Save("output.xml"); 

Answer 1

Well the Remove method http://msdn.microsoft.com/en-us/library/system.xml.linq.xnode.remove.aspx removes the node it is called on from its parent node.

Also take note that you don’t need the foreach, you can do dspRecords.Remove().