Public Class PropertyInterceptor
    (Of TInstance,TValue,TArgs As PropertyInterceptorArgs(Of TInstance,TValue)) 
   Inherits PropertyInterceptor

Dim instance As PropertyInterceptor(Of TInstance,TValue,TArgs)

public class PropertyInterceptor<TInstance,TValue,TArgs> : PropertyInterceptor 
where TArgs: PropertyInterceptorArgs<TInstance,TValue>

generic<typename TInstance>
generic<typename TValue>
generic<typename TArgs>
public ref class PropertyInterceptor : public PropertyInterceptor 
where TArgs: PropertyInterceptorArgs<TInstance,TValue>

public void Sample() {
     
      // Sample showing a mix of attribute and dynamic actions, on both base and derived types.
  
      // Add dynamic actions on Entity to affect any property:
      PropertyInterceptorManager.CurrentInstance.AddAction(
        new PropertyInterceptorAction<PropertyInterceptorArgs<Entity, Object>>(
          typeof(Entity),
          null,
          PropertyInterceptorMode.BeforeSet,
          (args) => Console.WriteLine("Entity BeforeSet"),
          0.0, "A"));

      PropertyInterceptorManager.CurrentInstance.AddAction(
        new PropertyInterceptorAction<PropertyInterceptorArgs<Entity, Object>>(
          typeof(Entity), 
          null,
          PropertyInterceptorMode.AfterSet,
          (args) => Console.WriteLine("Entity AfterSet"),
          0.0, "B"));

      // Look at all before set actions affecting customer company name
      foreach (var action in Customer.CompanyNameEntityProperty.SetterInterceptor.GetActions(typeof(Customer), PropertyInterceptorMode.BeforeSet)) {
        Console.WriteLine(action.Key + ", order = " + action.Order);
      }
      // Now look at all after set actions affecting customer company name
      foreach (var action in Customer.CompanyNameEntityProperty.SetterInterceptor.GetActions(typeof(Customer), PropertyInterceptorMode.AfterSet)) {
        Console.WriteLine(action.Key + ", order = " + action.Order);
      }
      
      // Now get a customer entity and set company name - see output for actions invoked.
      DomainModelEntityManager mgr = DomainModelEntityManager.DefaultManager;
      Customer c1 = mgr.Customers.First();
      c1.CompanyName = "Books N Things";
    }
    
public partial class Customer {

  [BeforeSet(Key = "CustomerBeforeAction1")]
  public void BeforeSetAnyCustomerProperty(IEntityPropertySetInterceptorArgs args) {
    Console.WriteLine("Customer any - before setting " + args.EntityProperty.Name);
  }

  [BeforeSet("CompanyName", Key = "CustomerBeforeAction2")]
  public void BeforeSetCompanyName(IEntityPropertySetInterceptorArgs args) {
    Console.WriteLine("Customer companyname - before setting company name");
  }

  [AfterSet(Key="CustomerAfterAction1")]
  public void AfterSetAnyCustomerProperty(IEntityPropertySetInterceptorArgs args) {
    Console.WriteLine("Customer any - After setting " + args.EntityProperty.Name);
  }

  [AfterSet("CompanyName", Key="CustomerAfterAction2")]
  public void AfterSetCompanyName(IEntityPropertySetInterceptorArgs args) {
    Console.WriteLine("Customer companyname - After setting company name");
  }
}