IContractBehaviorAttribute.TargetContract Properti

Definisi

Ruang nama:

System.ServiceModel.Description

Rakitan:

System.ServiceModel.dll

Mendapatkan jenis kontrak yang berlaku untuk perilaku kontrak.

public:
 property Type ^ TargetContract { Type ^ get(); };

public Type TargetContract { get; }

member this.TargetContract : Type

Public ReadOnly Property TargetContract As Type

Nilai Properti

Type

Kontrak tempat perilaku kontrak berlaku.

Contoh

Contoh kode berikut mengasumsikan implementasi kustom System.ServiceModel.Dispatcher.IInstanceProvider yang disebut ObjectProviderBehavior yang menyediakan perilaku "singleton"; selalu mengembalikan instans layanan yang sama dan tidak mendaur ulangnya.

Untuk menyisipkan kustomisasi penyedia instans, contoh menunjukkan cara mengimplementasikan atribut kustom (SingletonBehaviorAttribute) yang menerapkan untuk menyisipkan penyedia instans System.ServiceModel.Description.IContractBehavior layanan kustom. Ini juga mengimplementasikan IContractBehaviorAttribute, yang mengikat aplikasinya ke ISampleService kontrak.

public class SingletonBehaviorAttribute : Attribute, IContractBehaviorAttribute, IContractBehavior
{

  #region IContractBehaviorAttribute Members

  public Type TargetContract
  {
    get { return typeof(ISampleService); }
  }

  #endregion

  #region IContractBehavior Members

  public void AddBindingParameters(ContractDescription description, ServiceEndpoint endpoint, System.ServiceModel.Channels.BindingParameterCollection parameters)
  {
    return;
  }

  public void ApplyClientBehavior(ContractDescription description, ServiceEndpoint endpoint, ClientRuntime clientRuntime)
  {
    return;
  }

  public void ApplyDispatchBehavior(ContractDescription description, ServiceEndpoint endpoint, DispatchRuntime dispatch)
  {
    dispatch.InstanceProvider = new ObjectProviderBehavior("Custom ObjectProviderBehavior constructor.");
  }

  public void Validate(ContractDescription description, ServiceEndpoint endpoint)
  {
    return;
  }

  #endregion
}

Public Class SingletonBehaviorAttribute
    Inherits Attribute
    Implements IContractBehaviorAttribute, IContractBehavior

  #Region "IContractBehaviorAttribute Members"

  Public ReadOnly Property TargetContract() As Type Implements IContractBehaviorAttribute.TargetContract
    Get
        Return GetType(ISampleService)
    End Get
  End Property

  #End Region

  #Region "IContractBehavior Members"

  Public Sub AddBindingParameters(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint, ByVal parameters As System.ServiceModel.Channels.BindingParameterCollection) Implements IContractBehavior.AddBindingParameters
    Return
  End Sub

  Public Sub ApplyClientBehavior(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint, ByVal clientRuntime As ClientRuntime) Implements IContractBehavior.ApplyClientBehavior
    Return
  End Sub

  Public Sub ApplyDispatchBehavior(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint, ByVal dispatch As DispatchRuntime) Implements IContractBehavior.ApplyDispatchBehavior
    dispatch.InstanceProvider = New ObjectProviderBehavior("Custom ObjectProviderBehavior constructor.")
  End Sub

  Public Sub Validate(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint) Implements IContractBehavior.Validate
    Return
  End Sub

  #End Region
End Class

Keterangan

Terapkan TargetContract properti untuk menentukan kontrak tempat perilaku kontrak diterapkan saat atribut penerapan System.ServiceModel.Description.IContractBehavior diterapkan ke kelas layanan.