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POXML Deserialization not deserializing element
 

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    <p>Good Afternoon,</p> <p>I have the following classes</p> <pre><code>public class MaintenanceBundle { [XmlAttribute(AttributeName = "Required")] public string Required { get; set; } [XmlAttribute(AttributeName = "ID")] public string Id { get; set; } [XmlElement(ElementName = "Title")] public string Title { get; set; } [XmlElement(ElementName = "MntReason")] public MaintenanceReason Reason { get; set; } [XmlElement(ElementName = "Tasks")] public MaintenanceBundleCollection Tasks { get; set; } } public class MaintenanceBundleCollection { [XmlElement(ElementName = "Task")] public List&lt;MaintenanceBundleTask&gt; Tasks { get; set; } } public class MaintenanceReason { [XmlAttribute(AttributeName = "Every")] public string Every { get; set; } [XmlElement(ElementName = "Mileage", IsNullable = true)] public int? Mileage { get; set; } [XmlElement(ElementName = "Time", IsNullable = true)] public TimeInterval TimeInterval { get; set; } } </code></pre> <p>I'm trying to deserialize this xml to objects using these classes. Here is the XML</p> <pre><code>&lt;MntBundle Required="Yes" ID="S08870641702009101200000"&gt; &lt;Title&gt;DIRT OR DUSTY ROADS - 5000 MILES / 6 MONTHS&lt;/Title&gt; &lt;MntReason Every="No"&gt; &lt;Mileage Unit="MILES"&gt;5000&lt;/Mileage&gt; &lt;/MntReason&gt; &lt;Tasks&gt; &lt;Task ID="4-2" /&gt; &lt;Task ID="4-3"&gt; &lt;NMVCQualifier&gt;Drive Shaft Boots&lt;/NMVCQualifier&gt; &lt;MVCQualifiers&gt; &lt;Qualifier Name="Drive Type"&gt;4WD&lt;/Qualifier&gt; &lt;/MVCQualifiers&gt; &lt;/Task&gt; &lt;Task ID="4-1" /&gt; &lt;Task ID="4-4" /&gt; &lt;Task ID="5-1"&gt; &lt;MVCQualifiers&gt; &lt;Qualifier Name="Drive Type"&gt;4WD&lt;/Qualifier&gt; &lt;/MVCQualifiers&gt; &lt;/Task&gt; &lt;Task ID="6-1" /&gt; &lt;Task ID="7-1" /&gt; &lt;/Tasks&gt; &lt;/MntBundle&gt; </code></pre> <p>For some reason I am unable to get the Mileage element inside the MntReason element. It keeps coming back as null. Any ideas what I am doing wrong? All the other elements seem to deserialize properly. I left out irrelevant classes from my post. If anyone has any pointers how I can properly retreive this value I would love to hear it. Thanks so much for any help.</p> <p>Cheers,<br> ~ck in San Diego</p>
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    1. COYour Mileage element is complex (it has a `Unit` attribute) - that might be it.
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    2. COIt seems like a lot of folks have run into issues dealing with Nullable types and XML Serialization. This post seems relevant: http://stackoverflow.com/questions/2074240/serializing-a-nullabledatetime-in-to-xml
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