// Deletes current person
void DeleteCurrentPerson()
{
if (current == null)
{
return;
}
Person deleted = current;
if (persons.Count != 1)
{
int index = persons.IndexOf(deleted);
Current = persons[index == 0 ? 1 : index - 1];
}
else
{
Current = null;
deleteCommand.RaiseCanExecuteChanged();
}
persons.Remove(deleted);
}
public void service_redoes_are_in_the_correct_order()
{
var p1 = new Person( null, false );
var p2 = new Person( null, false );
var p3 = new Person( null, false );
ChangeTrackingService svc = new ChangeTrackingService();
PersonCollection list = new PersonCollection( svc );
list.Add( p1 );
list.Add( p2 );
list.Add( p3 );
list.Move( p2, 0 );
list.Remove( p1 );
while( svc.CanUndo )
{
svc.Undo();
}
svc.Redo();
Assert.AreEqual<Int32>( 1, list.Count );
Assert.IsTrue( list.Contains( p1 ) );
svc.Redo();
Assert.AreEqual<Int32>( 2, list.Count );
Assert.IsTrue( list.Contains( p2 ) );
svc.Redo();
Assert.AreEqual<Int32>( 3, list.Count );
Assert.IsTrue( list.Contains( p3 ) );
svc.Redo();
Assert.AreEqual<Int32>( 0, list.IndexOf( p2 ) );
svc.Redo();
Assert.AreEqual<Int32>( 2, list.Count );
Assert.IsFalse( list.Contains( p1 ) );
}
public void service_on_clear_undo_entities_are_restored()
{
var source = new Person[]
{
new Person( null, false ),
new Person( null, false ),
new Person( null, false ),
new Person( null, false ),
new Person( null, false )
};
ChangeTrackingService svc = new ChangeTrackingService();
PersonCollection list = new PersonCollection( svc );
list.BeginInit();
list.AddRange( source );
list.EndInit();
list.Clear();
svc.Undo();
Assert.AreEqual<Int32>( source.Length, list.Count() );
source.ForEach( p =>
{
Int32 expected = Array.IndexOf( source, p );
Int32 actual = list.IndexOf( p );
Assert.AreEqual<Int32>( expected, actual );
} );
}
