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XDocument customers = XDocument.Load(xmlFileName);
var queryResult = from c in customers.Elements() select c.Name;
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Definition comparer class,
class ItemComparer : IEqualityComparer<XElement>
{
public bool Equals(XElement x, XElement y)
{
return x.Attribute("Name").Value == x.Attribute("Name").Value;
}
public int GetHashCode(XElement obj)
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