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I was going through WCF Fundamentals, Can anybody tells that under which scenarios should we use DataContractSerializer and XmlSerializer?
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XmlSerializer enables you to control how objects are encoded into XML. The XmlSerializer enables you to control how objects are encoded into XML, it has a number of constructors.
Since XmlSerializer is one of the few thread safe classes in the framework you really only need a single instance of each serializer even in a multithreaded application.
By default WCF uses the DataContractSerializer class to serialize data types.
The process forms a sequence of bytes into a logical object; this is called an encoding process. At runtime when WCF receives the logical message, it transforms them back into corresponding . Net objects. This process is called serialization.
DataContractSerializer
XMLSerializer
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DataContractSerializer is better performance over Xmlserializer. This is because DataContratSerializer explicitly shows the which fields or properties are serialized into XML.
DataContractSerializer can able to serialize types that implements Idictionary whereas XML serializer not.
DataContractSerializer serializes all members which are marked with [DataMember] attribute even if member is marked private. XML serializer serialize only public members.
These are some important difference.
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