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XmlIncludeAttribute(Type) 建構函式

定義

初始化 XmlIncludeAttribute 類別的新執行個體。

public:
 XmlIncludeAttribute(Type ^ type);
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

要包含的物件的 Type

範例

下列範例顯示三個類別,其中兩個類別繼承自第三個類別。 此範例會將 XmlIncludeAttribute 套用至傳回兩個衍生類別其中一個實例的方法。 此範例會將 Type 屬性設定為傳回物件的型別。

public ref class Vehicle{};

public ref class Car: public Vehicle{};

public ref class Truck: public Vehicle{};

public ref class Sample
{
public:

   [WebMethodAttribute]
   [XmlInclude(Car::typeid)]
   [XmlInclude(Truck::typeid)]
   Vehicle^ ReturnVehicle( int i )
   {
      if ( i == 0 )
            return gcnew Car;
      else
            return gcnew Truck;
   }
};
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

適用於