XmlIncludeAttribute.Type 屬性
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
取得或設定要包含的物件類型。
public:
property Type ^ Type { Type ^ get(); void set(Type ^ value); };
public Type Type { get; set; }
public Type? Type { get; set; }
member this.Type : Type with get, set
Public Property Type As Type
屬性值
Type包含的物件。
範例
以下範例定義了一個名為 Group的類別,其中包含一個名為 的欄位,該欄位 Employees 回傳一個物件 Employee 陣列。 範例中從該Manager類別推導出該Employee類別,並將 應用XmlIncludeAttribute於該Employee類別。 當範例建立物件 Group 時,會將物件 Manager 插入陣列中 Employee 。 最後,範例將物件序列化 Group 。
using System;
using System.IO;
using System.Xml.Serialization;
public class Group
{
public Employee[] Employees;
}
// Instruct the XmlSerializer to accept Manager types as well.
[XmlInclude(typeof(Manager))]
public class Employee
{
public string Name;
}
public class Manager:Employee
{
public int Level;
}
public class Run
{
public static void Main()
{
Run test = new Run();
test.SerializeObject("IncludeExample.xml");
test.DeserializeObject("IncludeExample.xml");
}
public void SerializeObject(string filename)
{
XmlSerializer s = new XmlSerializer(typeof(Group));
TextWriter writer = new StreamWriter(filename);
Group group = new Group();
Manager manager = new Manager();
Employee emp1 = new Employee();
Employee emp2 = new Employee();
manager.Name = "Zeus";
manager.Level = 2;
emp1.Name = "Ares";
emp2.Name = "Artemis";
Employee [] emps = new Employee[3]{manager, emp1, emp2};
group.Employees = emps;
s.Serialize(writer, group);
writer.Close();
}
public void DeserializeObject(string filename)
{
FileStream fs = new FileStream(filename, FileMode.Open);
XmlSerializer x = new XmlSerializer(typeof(Group));
Group g = (Group) x.Deserialize(fs);
Console.Write("Members:");
foreach(Employee e in g.Employees)
{
Console.WriteLine("\t" + e.Name);
}
}
}
Imports System.IO
Imports System.Xml.Serialization
Public Class Group
Public Employees() As Employee
End Class
' Instruct the XmlSerializer to accept Manager types as well.
<XmlInclude(GetType(Manager))> _
Public Class Employee
Public Name As String
End Class
Public Class Manager
Inherits Employee
Public Level As Integer
End Class
Public Class Run
Public Shared Sub Main()
Dim test As New Run()
test.SerializeObject("IncludeExample.xml")
test.DeserializeObject("IncludeExample.xml")
End Sub
Public Sub SerializeObject(ByVal filename As String)
Dim s As New XmlSerializer(GetType(Group))
Dim writer As New StreamWriter(filename)
Dim group As New Group()
Dim manager As New Manager()
Dim emp1 As New Employee()
Dim emp2 As New Employee()
manager.Name = "Zeus"
manager.Level = 2
emp1.Name = "Ares"
emp2.Name = "Artemis"
Dim emps() As Employee = {manager, emp1, emp2}
group.Employees = emps
s.Serialize(writer, group)
writer.Close()
End Sub
Public Sub DeserializeObject(ByVal filename As String)
Dim fs As New FileStream(filename, FileMode.Open)
Dim x As New XmlSerializer(GetType(Group))
Dim g As Group = CType(x.Deserialize(fs), Group)
Console.Write("Members:")
Dim e As Employee
For Each e In g.Employees
Console.WriteLine(ControlChars.Tab + e.Name)
Next e
End Sub
End Class