Query attribute value

You can also use casts in LINQ queries.

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;

class Program
    static void Main()
        var data = XElement.Parse(@"<data><customer id='1' name='A' credit='100' /><customer id='2' name='B' credit='150' /><customer id='3' name='C' /></data>");

        IEnumerable<string> query = from cust in data.Elements()
                                    where (int?)cust.Attribute("credit") > 100
                                    select cust.Attribute("name").Value;
        foreach(string s in query){

The output:

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