IContractBehaviorAttribute.TargetContract Property

 

Gets the type of the contract to which the contract behavior is applicable.

Namespace:   System.ServiceModel.Description
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

Type TargetContract { get; }

Property Value

Type: System.Type

The contract to which the contract behavior is applicable.

Implement the TargetContract property to specify the contract to which the contract behavior is applied when the implementing System.ServiceModel.Description.IContractBehavior attribute is applied to a service class.

The following code example assumes a custom System.ServiceModel.Dispatcher.IInstanceProvider implementation called ObjectProviderBehavior that provides a "singleton" behavior; it always returns the same service instance and does not recycle it.

To insert the instance provider customization, the example shows how to implement a custom attribute (SingletonBehaviorAttribute) that implements System.ServiceModel.Description.IContractBehavior to insert the custom service instance provider. It also implements IContractBehaviorAttribute, which binds its application to the ISampleService contract.

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
}

.NET Framework
Available since 3.0
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