public void EventBinding_SimpleActionViaCSharp_Executed()
{
var executed = false;
var button = XamlReader.Parse <Button>("<Button />");
button.DataContext = new Action(() => executed = true);
EventBinding.Bind(button, "Click", "Invoke");
button.RaiseClickEvent();
Assert.True(executed);
}
public void TestMapNoArgumentCallback()
{
confirmationValue = INIT_VALUE;
IEventBinding binding = new EventBinding();
binding.Bind(SomeEnum.ONE).To(noArgumentCallback);
EventCallbackType type = binding.TypeForCallback(noArgumentCallback);
object[] value = binding.value as object[];
Delegate extracted = value[0] as Delegate;
Assert.AreEqual(EventCallbackType.NO_ARGUMENTS, type);
extracted.DynamicInvoke(new object[0]);
//Calling the method should change the confirmationValue
Assert.AreNotEqual(confirmationValue, INIT_VALUE);
}
public void TestMapOneArgumentCallback()
{
confirmationValue = INIT_VALUE;
IEventBinding binding = new EventBinding();
binding.Bind(SomeEnum.ONE).To(oneArgumentCallback);
EventCallbackType type = binding.TypeForCallback(oneArgumentCallback);
object[] value = binding.value as object[];
Delegate extracted = value[0] as Delegate;
Assert.AreEqual(EventCallbackType.ONE_ARGUMENT, type);
object[] parameters = new object[1];
parameters [0] = new TestEvent("TEST", null, INIT_VALUE);
extracted.DynamicInvoke(parameters);
//Calling the method should change the confirmationValue
Assert.AreEqual(confirmationValue, INIT_VALUE * INIT_VALUE);
}
public static void Main()
{
PopulatedOrganization wonkaFactory = new PopulatedOrganization();
Organization chocolateDepartment = new Organization();
#region SINGLE OBJECT EVENT BINDING
// create the event binding for single object
EventBinding<Organization, string> eventBinding =
new EventBinding<Organization, string>();
// specify the source object and the path to the source binding property that contains the event
// we want to bind to
eventBinding.SourceObj = wonkaFactory;
eventBinding.SourcePathLinks =
StringCodePathResolver.ResolveStringPath("TheMostImportantDepartment").ToList();
// do the binding itself
eventBinding.Bind();
// specify the event name (it can be done either before or after bind()
// method is called
eventBinding.EventName = "SomethingHappenedInOrgEvent";
// add the event hanlder whose signature is similar to that of
// SomethingHappenedInOrgEvent event to the binding
eventBinding.TheEvent += eventBinding_SomethingHappenedInTheDepartment;
// nothing is printed to the console because wonkaFactory.TheMostImportantDepartment
// is still not set to chocolateDepartment object
chocolateDepartment.FireSomethingHappenedEvent("Augustus Gloop went to the chocolate creek. (Before the department added - should not show)" );
// set wonkaFactory.TheMostImportantDepartment
wonkaFactory.TheMostImportantDepartment = chocolateDepartment;
// this message is printed on the console
chocolateDepartment.FireSomethingHappenedEvent("Augustus Gloop is out of the game (should show)");
// unbind the event
eventBinding.Unbind();
#endregion SINGLE OBJECT EVENT BINDING
#region COLLECTION EVENT BINDING
// create the collection AllDepartments
wonkaFactory.AllDepartments = new ObservableCollection<Organization>();
// add chocolate department to it
wonkaFactory.AllDepartments.Add(chocolateDepartment);
// create collection event binding
CollectionEventBinding<Organization, string> collectionEventBinding =
new CollectionEventBinding<Organization, string>();
// set the objects that contain the event we want to bind to
// to be "AllDepartments" collection property of "wonkaFactory" object
collectionEventBinding.SourceObj = wonkaFactory;
collectionEventBinding.SourcePathLinks =
StringCodePathResolver.ResolveStringPath("AllDepartments").ToList();
// bind the event
collectionEventBinding.Bind();
// set the event name (can be done before or after the binding)
collectionEventBinding.EventName = "SomethingHappenedInOrgEvent";
// add event handler
collectionEventBinding.TheEvent += collectionEventBinding_TheEvent;
// create gumDepartment
Organization gumDepartment = new Organization();
// fire an event (should not be handled since gumDepartment is not part of the collection yet)
gumDepartment.FireSomethingHappenedEvent("We had great sales (Before the department is added - should not show)");
// Add gum department to the collection
wonkaFactory.AllDepartments.Add(gumDepartment);
// fire the event (should be handled, since now gumDepartment is part of the collection)
gumDepartment.FireSomethingHappenedEvent("We had great sales (After the department is added - should show)");
// remove gum department from All Department collection
// collectionEventBinding should be sufficiently smart to disconnect
// the event of gumDepartment object from the handler
wonkaFactory.AllDepartments.Remove(gumDepartment);
// fire the event again - (the handler should not run, since gumDepartment has been removed from the collection)
gumDepartment.FireSomethingHappenedEvent("We had great sales (After the department is Removed - should not show)");
#endregion COLLECTION EVENT BINDING
}