Introducing XML Serialization
The following items can be serialized using the XmLSerializer class:
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Public read/write properties and fields of public classes
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Classes that implement ICollection or IEnumerable
Note
Only collections are serialized, not public properties.
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XmlElement objects
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XmlNode objects
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DataSet objects
example code for ICollection:
using System; using System.IO; using System.Collections; using System.Xml.Serialization; public class Test{ static void Main(){ Test t = new Test(); t.SerializeCollection("coll.xml"); } private void SerializeCollection(string filename){ Employees Emps = new Employees(); // Note that only the collection is serialized -- not the // CollectionName or any other public property of the class. Emps.CollectionName = "Employees"; Employee John100 = new Employee("John", "100xxx"); Emps.Add(John100); XmlSerializer x = new XmlSerializer(typeof(Employees)); TextWriter writer = new StreamWriter(filename); x.Serialize(writer, Emps); } } public class Employees:ICollection{ public string CollectionName; private ArrayList empArray = new ArrayList(); public Employee this[int index]{ get{return (Employee) empArray[index];} } public void CopyTo(Array a, int index){ empArray.CopyTo(a, index); } public int Count{ get{return empArray.Count;} } public object SyncRoot{ get{return this;} } public bool IsSynchronized{ get{return false;} } public IEnumerator GetEnumerator(){ return empArray.GetEnumerator(); } public void Add(Employee newEmployee){ empArray.Add(newEmployee); } } public class Employee{ public string EmpName; public string EmpID; public Employee(){} public Employee(string empName, string empID){ EmpName = empName; EmpID = empID; } }
the serialization xml looks like :
<?xml version="1.0" encoding="utf-8"?> <ArrayOfEmployee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <Employee> <EmpName>John</EmpName> <EmpID>100xxx</EmpID> </Employee> </ArrayOfEmployee>
DataSet XML Serialization Example:
private void SerializeDataSet(string filename){ XmlSerializer ser = new XmlSerializer(typeof(DataSet)); // Creates a DataSet; adds a table, column, and ten rows. DataSet ds = new DataSet("myDataSet"); DataTable t = new DataTable("table1"); DataColumn c = new DataColumn("thing"); t.Columns.Add(c); ds.Tables.Add(t); DataRow r; for(int i = 0; i<10;i++){ r = t.NewRow(); r[0] = "Thing " + i; t.Rows.Add(r); } TextWriter writer = new StreamWriter(filename); ser.Serialize(writer, ds); writer.Close(); }
XMLElement or XMLNode Xml Serialization code Example:
private void SerializeElement(string filename){ XmlSerializer ser = new XmlSerializer(typeof(XmlElement)); XmlElement myElement= new XmlDocument().CreateElement("MyElement", "ns"); myElement.InnerText = "Hello World"; TextWriter writer = new StreamWriter(filename); ser.Serialize(writer, myElement); writer.Close(); } private void SerializeNode(string filename){ XmlSerializer ser = new XmlSerializer(typeof(XmlNode)); XmlNode myNode= new XmlDocument(). CreateNode(XmlNodeType.Element, "MyNode", "ns"); myNode.InnerText = "Hello Node"; TextWriter writer = new StreamWriter(filename); ser.Serialize(writer, myNode); writer.Close(); }
you also can control the xml serialization by attribute. and the attributes which can control the xml serialization.
posted on 2012-07-04 17:08 malaikuangren 阅读(170) 评论(0) 编辑 收藏 举报