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    copied!<p>Perhaps this is a cop-out but I was able to make this work using the <code>DataContractSerializer</code> like this:</p> <pre><code>using System; using System.IO; using System.Collections.ObjectModel; using System.Runtime.Serialization; class Program { static void Main() { CarCollection cars = new CarCollection(); cars.Add(new Car { Make = "Ford", Model = "Mustang" }); cars.Add(new Car { Make = "Honda", Model = "Accord" }); cars.Add(new Car { Make = "Toyota", Model = "Tundra" }); using (MemoryStream memoryStream = new MemoryStream()) { DataContractSerializer serializer = new DataContractSerializer(typeof(CarCollection)); serializer.WriteObject(memoryStream, cars); memoryStream.Position = 0; String xml = null; using (StreamReader reader = new StreamReader(memoryStream)) { xml = reader.ReadToEnd(); reader.Close(); } memoryStream.Close(); } } } [CollectionDataContract(Name = "cars")] public class CarCollection : Collection&lt;Car&gt; { } [DataContract(Name = "car")] public class Car { [DataMember(Name = "make")] public String Make { get; set; } [DataMember(Name = "model")] public String Model { get; set; } } </code></pre> <p><strong>Output:</strong></p> <pre><code>&lt;cars xmlns="http://schemas.datacontract.org/2004/07/" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"&gt; &lt;car&gt; &lt;make&gt;Ford&lt;/make&gt; &lt;model&gt;Mustang&lt;/model&gt; &lt;/car&gt; &lt;car&gt; &lt;make&gt;Honda&lt;/make&gt; &lt;model&gt;Accord&lt;/model&gt; &lt;/car&gt; &lt;car&gt; &lt;make&gt;Toyota&lt;/make&gt; &lt;model&gt;Tundra&lt;/model&gt; &lt;/car&gt; &lt;/cars&gt; </code></pre> <p>Notice that the attributes on your types have changed to support the usage of <code>DataContractSerializer</code>. I don't know if this is the direction that you want to go with this but I have found that in almost every case I prefer to use the <code>DataContractSerializer</code> in place of the older <code>XmlSerializer</code>.</p>
 

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