Deserializing XML with DataContractSerializer

DataContractSerializer expects things to be in alphabetical order. You need to add Order to your Data Members for this to work correctly.

[DataContract(Name = "PROPERTY_ADDRESS", Namespace = "")]public class PropertyAddress{    [DataMember(Name = "STREET_NUM", Order=0)]    public string StreetNumber { get; set; }    [DataMember(Name = "STREET_ADDRESS", Order=1)]    public string StreetAddress { get; set; }    [DataMember(Name = "STREET_PREFIX", Order=2)]    public string StreetPrefix { get; set; }    [DataMember(Name = "STREET_NAME", Order=3)]    public string StreetName { get; set; }    [DataMember(Name = "STREET_TYPE", Order=4)]    public string StreetType { get; set; }    [DataMember(Name = "STREET_SUFFIX",Order=5)]    public string StreetSuffix { get; set; }}

You have to augment your data contract with the order of the elements because DataContractSerializer expects the elements to be sorted alphabetically by default. Which is not the case with your XML.

Here's the code:

[DataContract(Name = "PROPERTY_ADDRESS", Namespace = "")]public class PropertyAddress{    [DataMember(Name = "STREET_NUM", Order=1)]    public string StreetNumber { get; set; }    [DataMember(Name = "STREET_ADDRESS", Order=2)]    public string StreetAddress { get; set; }    [DataMember(Name = "STREET_PREFIX", Order=3)]    public string StreetPrefix { get; set; }    [DataMember(Name = "STREET_NAME", Order=4)]    public string StreetName { get; set; }    [DataMember(Name = "STREET_TYPE", Order=5)]    public string StreetType { get; set; }    [DataMember(Name = "STREET_SUFFIX", Order=6)]    public string StreetSuffix { get; set; }}