How to delete specific nodes from an XElement?

Question

I have created a XElement with node which has XML as below.

I want to remove all the \"Rule\" nodes if they contain \"conditions\" node.

Answer 1

You can try this approach:

var nodes = xRelation.Elements().Where(x => x.Element("Conditions") != null).ToList();

foreach(var node in nodes)
    node.Remove();

Basic idea: you can't delete elements of collection you're currently iterating.
So first you have to create list of nodes to delete and then delete these nodes.