XmlIncludeAttribute(Type) 建構函式

定義

命名空間:

System.Xml.Serialization

組件:

netstandard.dll, System.Xml.XmlSerializer.dll

來源:

XmlIncludeAttribute.cs

初始化 XmlIncludeAttribute 類別的新執行個體。

public:
 XmlIncludeAttribute(Type ^ type);

public XmlIncludeAttribute(Type? type);

new System.Xml.Serialization.XmlIncludeAttribute : Type -> System.Xml.Serialization.XmlIncludeAttribute

Public Sub New (type As Type)

參數

type

Type

Type包含的物件。

範例

以下範例顯示三個類別，其中兩個繼承自第三個類別。 此範例將 應用 XmlIncludeAttribute 於一個回傳兩個衍生類別實例的方法。 範例中將屬性 Type 設定為返回物件的型別。

public class Vehicle{}

public class Car:Vehicle{}

public class Truck:Vehicle{}

public class Sample
{
[WebMethodAttribute]
[XmlInclude(typeof(Car))]
[XmlInclude(typeof(Truck))]
public Vehicle ReturnVehicle(int i){
   if(i == 0)
      return new Car();
   else
      return new Truck();
   }
}

Public Class Vehicle
End Class
 
Public Class Car
    Inherits Vehicle
End Class
 
Public Class Truck
    Inherits Vehicle
End Class
 
Public Class Sample    
    <WebMethod(), _
     XmlInclude(GetType(Car)), _
     XmlInclude(GetType(Truck))> _
    Public Function ReturnVehicle(i As Integer) As Vehicle
        
        If i = 0 Then
            Return New Car()
        Else
            Return New Truck()
        End If
    End Function
End Class