CODEWITHSUNDEEP
c#.netxmlxml-serializationxml-deserialization
NickG
NickG

Reputation: 9820

How can I deserialize an object from an XML string?

I'm trying to deserialize an object back from it's XML string using xmlSerializer.Deserialize() but the returned object is always blank (not null, but all the properties are null or 0). I can't work out what I'm doing wrong and yet I get no errors or exceptions.

string xml = "***my xml is here***";

XmlSerializer ser = new XmlSerializer(typeof(Order));
StringReader stringReader = new StringReader(xml);
XmlTextReader xmlReader = new XmlTextReader(stringReader);
Order order = (Order)ser.Deserialize(xmlReader);
xmlReader.Close();
stringReader.Close();

The source of Order.cs was generated from the XSD using the the xsd.exe tool.

Source of order.cs: http://www.nickgilbert.com/etc/1/Order.txt

Sample order XML: http://www.nickgilbert.com/etc/1/example-order.xml

Upvotes: 0

Views: 570

Answers (2)

pmartin
pmartin

Reputation: 2741

Your sample XML file (example-order.xml) uses the namespace http://tempuri.org/OrderSchema.xsd but the code generated by XSD (order.cs) defines all of the elements in the namespace http://x-rm.com/wrightcottrell/cataloguecd/.

You'll need these namespaces to match up in order for serialization to work properly.

Upvotes: 2

Marc Gravell
Marc Gravell

Reputation: 1063338

The fact that you get an object back at all tells me that the object is public and has a public parameterless constructor (otherwise an exception would have been thrown). So, it is most-likely failing one of:

  • deserialization members must be either public properties with public get and public set, or public (non-readonly) fields
  • by default the member-names must be an exact match for xml element names, in the same xml-namespace as the parent element; finer control can be obtained via attributes (changing the name, using attributes, namespaces, etc)

Upvotes: 1

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