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What are the advantages and disadvantages of XML serialization? in view of this problem, this article introduces the corresponding analysis and solutions in detail, hoping to help more partners who want to solve this problem to find a simpler and easier way.

We use the XmlSerializer class in XML serialization, which gives you complete and flexible control when you serialize objects to XML. If you are creating a XML Web services, you can apply attributes that control serialization to classes and members to ensure that the XML output conforms to a specific schema.

1. Benefits of using XmlSerializer for XML serialization:

◆ specifies whether a field or attribute should be encoded as a property or an element.

◆ specifies the XML namespace to use.

◆ specifies the name of the element or property if the field or attribute name is not appropriate.

Another benefit of ◆ XML serialization is that as long as the generated XML stream conforms to a given schema, there are no constraints on the application being developed. Suppose you have a schema for describing books with title, author, publisher, and ISBN numbering elements. You can develop an application that processes XML data in any way you want (for example, as a book order, or as a book list). In either case, the requirement of * * is that the XML stream conforms to the specified XML Schema definition language (XSD) schema.

2. XML serialization considerations: when using the XmlSerializer class, you should consider the following situations

The ◆ serialized data contains only the data itself and the structure of the class. Type identification and assembly information are not included.

◆ can only serialize public properties and fields. If you need to serialize non-public data, use the BinaryFormatter class instead of XML serialization.

The ◆ class must have a default constructor to be serialized by XmlSerializer.

◆ cannot serialize methods.

XmlSerializer can handle classes that implement IEnumerable or ICollection in different ways (provided that these classes meet certain requirements). Classes that implement IEnumerable must implement public Add methods with a single parameter. The parameters of the Add method must match the type returned by the IEnumerator.Current property returned from the GetEnumerator method (polymorphic). A class that implements ICollection in addition to IEnumerable, such as CollectionBase, must have a public Item index property (indexer in C #) that takes an integer, and it must have a public Count property of integer type. The parameter passed to the Add method must be the same as the type returned from the Item property or the same type as one of the bases of that type. For classes that implement ICollection, the value to be serialized is retrieved from the index Item property rather than by calling GetEnumerator. Also note that public fields and properties are not serialized except for returning public fields of another collection class (a collection class that implements ICollection). For an example, see the example of XML serialization.

XSD data type mapping

The World wide Web Consortium titled "XML Schema Part 2: Datatypes" (the http://www.w3.org/) document specifies the simple data types that are allowed in the XML Schema definition language (XSD) schema. For many of these data types (for example, int and decimal), there are corresponding data types in the .NET Framework. However, some XML data types do not have a corresponding data type (for example, NMTOKEN data type) in the .NET Framework. In such a case, if you use the XML Schema definition tool (Xsd.exe) to generate classes from the schema, the appropriate properties are applied to the members of the string type and their DataType property is set to the XML data type name. For example, if the schema contains an element named "MyToken" with a data type of XML data type NMTOKEN, the resulting class might contain members in the following example.

[Visual Basic] Public MyToken As String [C#] [XmlElement (DataType = "NMTOKEN")] public string MyToken; similarly, if you create a class that must conform to a specific XML schema (XSD), you should apply the appropriate features and set its DataType property to the desired XML data type name.

The answer to the question about the advantages and disadvantages of XML serialization is shared here. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel to learn more about it.

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