IContractBehaviorAttribute.TargetContract Egenskap

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

public Type TargetContract { get; }

member this.TargetContract : Type

Public ReadOnly Property TargetContract As Type

Egenskapsvärde

Det kontrakt som kontraktsbeteendet är tillämpligt på.

Exempel

I följande kodexempel förutsätts en anpassad System.ServiceModel.Dispatcher.IInstanceProvider implementering med namnet ObjectProviderBehavior som ger ett "singleton"-beteende. Den returnerar alltid samma tjänstinstans och återvinner den inte.

Om du vill infoga anpassningen av instansprovidern visar exemplet hur du implementerar ett anpassat attribut (SingletonBehaviorAttribute) som implementeras System.ServiceModel.Description.IContractBehavior för att infoga instansprovidern för anpassade tjänster. Den implementerar IContractBehaviorAttributeockså , som binder programmet till ISampleService kontraktet.

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

Kommentarer

TargetContract Implementera egenskapen för att ange det kontrakt som kontraktsbeteendet tillämpas på när implementeringsattributet System.ServiceModel.Description.IContractBehavior tillämpas på en tjänstklass.