Microsoft 'NET Framework and XML Serialization Advanced Saqib Rasool Developer Support Engineer PSS

1
Microsoft .NET Framework and XML Serialization
(Advanced) Saqib RasoolDeveloper Support
EngineerPSS XML WebData Team Microsoft
Corporation
2
Agenda

• Serialization recap
• Serialization example
• Customizing serialization
• Creating SOAP messages
• Usage of SOAP with serialization
• Note These slides provide only a summary. Read
  the transcript or listen to the on-demand
  recording of this WebCast for in-depth
  information about this subject. Microsoft
  Knowledge Base article Q323503, WebCast XML
  Serialization and Sample Code contains a full
  code sample.

3
Serialization Recap

• Object serialization
• Saving/archiving an object to portable media
• Into a file, into memory, or straight to wire
• Deserialization
• Restructuring saved/archived object into a memory
  lived object
• System.Xml.Serialization namespace
• XmlSerializer class
• XmlSerializer.Serialize(..)
• XmlSerializer.Deserialize(..)

4
Serialization Example

5
Serialization ExampleSerialized Object

6
Serialization ExampleDeserializing

7
Serialization CustomizationsEarly Customizations

• Use attributes to control the serialization
• Example XmlElementAttribute

8
Serialization Customizations (2)Early
Customizations

• Use attributes to control the serialization
• Example XmlRootAttribute

9
Serialization CustomizationsAllowed
Customizations Using Attributes

• Use attributes to control the serialization

10
Serialization CustomizationsLate Customization

• Can use attributes to change XML stream
• Late customization is needed when modifying the
  original source code is not an option
• See code on next slide

11
Changing Output XML Stream with Overriding
12
Before overriding
Changing Output XML Stream with Overriding (2)
After overriding

• You can also override the class used for
  serialization

13
Creating SOAP Messages

• The XmlSerializer can be used to generate
  SOAP-encoded messages
• Process
• SoapReflectionImporter. ImportTypeMapping(..)
  creates XmlTypeMapping
• Create XmlSerializer by passing above
  XmlTypeMapping
• Call XmlSerializer.Serialize() and
  XmlSerializer.Deserialize() as needed

14
Creating SOAP MessagesCode Sample
15
SOAP-Encoded XML Stream
16
Customizing SOAP Messages

• Customized and overridden in the same way as
  regular serialization
• These attributes are used for customization

17
Customizing SOAP MessagesCode Sample
18
Usage of SOAP with SerializationWeb Services

• Web Services use SOAP as the underlying mechanism
• XmlSerializer is used to create those SOAP-
  encoded methods
• Previously described techniques can be used to
  change the output message format of the Web
  Service

19
SOAP Customization in Web ServicesCode Sample
20
SOAP Customization in Web ServicesSOAP Envelope
for Calling Web Service
21
SOAP and Binary Serialization with Formatters

• SoapFormatter and BinaryFormatter are different
  than the techniques discussed earlier do not
  confuse these with XmlSerializer
• These formatters are found under the
  System.Runtime.Serialization.Formatters namespace
• These are used when full object fidelity is
  required
• BinaryFormatter is used for providing a compact
  stream
• SoapFormatter is used for portability

22
Binary Formatter Code Sample
23
SOAP Formatter Code Sample
24

• Thank you for joining us for todays Microsoft
  Support
• WebCast.
• For information about all upcoming Support
  WebCasts
• and access to the archived content (streaming
  media
• files, PowerPoint slides, and transcripts),
  visit
• http//support.microsoft.com/webcasts/
• We sincerely appreciate your feedback. Please
  send any
• comments or suggestions regarding the Support
• WebCasts to supweb_at_microsoft.com.