XElement root = new XElement("root"); ElementSet set = new ElementSet(root);
ElementSet set = new ElementSet(root); IEnumerableelements = set.Elements("child");
ElementSet set = new ElementSet(root); XElement child = new XElement("child"); set.Add(child);
ElementSet set = new ElementSet(root); XElement child = set.Elements("child").FirstOrDefault(); set.Remove(child);In this example, the first child element called "child" is removed from the ElementSet. The FirstOrDefault method is used to retrieve the first matching element, and the Remove method is used to remove it from the set. Package Library: ElementSet is a class in the System.Xml.Linq library in C#. It is part of the .NET Framework and can be used in any project that references this library.