Since I have XML, cross-system data exchange becomes more and more simple. .NET makes XML as the foundation of the underlying data exchange and provides a powerful class library in the .NET framework to enhance XML programming capabilities. These classes are included in the System.xml namespace. In a cross-system data exchange, the sequence of objects and the reverse selecente are heavy. .NET provides this specifically provided a system.xml.Serialization namespace for the sequence of objects.
To understand the serialization of XML, first refer to Microsoft's introduction:
●
Introducing XML Serialization
●
XML and SOAP Serialization
●
Roadmap for XML Serialization in the .NET Framework
.NET is serialized by using the characteristic Attribute control object. E.g:
<
XMLTYPE
"
ORDER
"
)
>
_
Public
Class ORDER
Class Order
Public
Class ORDERITEM
Class ORDERITEM
The XML after the .NET sequence is:
<
ORDER
>
<
id
>
20050405
id
>
<
Items
>
<
Item
>
<
Name
>
Object sequence
Name
>
Item
>
Items
>
ORDER
>
XMLTYPE: Can be applied to classes, structures, enumerations, and interfaces that are public as public. It defines the names and namespaces of XML types. XMLELEMENT: It defines a field or property to serialize the XML element. Fields or properties must be declared as public. Xmlarray: It defines a field or attribute to serialize the XML collection. Fields or properties must be declared as public. XmlarrayItem: Defines the derived type that can be added to the collection. .NET also provides some other Attribute. All attribute features can be viewed by the following address: ● Attributes That Control XML Serialization How to use these Attribute, please see: ● Controlling XML Serialization Using Attributes With these Attribute, we can easily serialize objects, but who is completed ? Then I need to understand XMLSerializer. ASP.NET is to encode XML Web Services messages using the XMLSerializer class. For information on the XMLSerializer class: ● XMLSerializer class ● XMLSerializer.Serialize method XMLSerializer is also very simple:
DIM
Serializer
AS
New
XMLSERIALIZER (
Gettype
(ORDER))
DIM
Writer
AS
New
Streamwriter (filename)
DIM
o
AS
New
ORDER O.ID
=
"
20050405
"
DIM
Item
AS
ORDERITEM ITEM.ItemName
=
"Object Series"
DIM
Items
0
)
AS
ORDERITEM ITEMS
0
)
=
Item O.OrDerItems
=
Items Serializer.Serialize (Writer, Po) Writer.close ()
