public void ItemRemoved()
{
var list = new RxList<string>("1", "2");
string item = null;
list.ItemRemoved.Subscribe(x => item = x);
list.Remove("1");
Assert.AreEqual("1", item);
list.Remove("2");
Assert.AreEqual("2", item);
list = new RxList<string>("1", "2");
list.ItemRemoved.Subscribe(x => item = x);
list.Remove("2");
Assert.AreEqual("2", item);
list.Remove("1");
Assert.AreEqual("1", item);
}
public static void SetUpSync <TViewModel, TModel>(
this RxList <TViewModel> list,
DbRepository repository,
RxList <TModel> modelList,
Func <TViewModel, TModel> newModelObject
)
where TViewModel : IIdObject, IRxObject
where TModel : IdObject
{
Action <TViewModel, TModel> bind = (viewModel, model) =>
{
viewModel.Changed.Where(y => y.Property.Name != nameof(IdObject.Id)).Subscribe(y =>
{
model.GetType().GetProperty(y.Property.Name)?.SetValue(model, y.NewValue);
});
};
var modelsById = modelList.ToDictionary(x => x.Id);
foreach (var item in list)
{
bind(item, modelsById[item.Id]);
}
list.ItemAdded.Subscribe(async viewModel =>
{
viewModel.ObservePropertyChange(y => y.Id).SubscribeOnce(y => viewModel.Id = y);
var newModel = newModelObject(viewModel);
bind(viewModel, newModel);
modelList.Add(newModel);
await repository.WaitForIdle();
});
list.ItemRemoved.Subscribe(viewModel =>
{
var model = modelList.Single(x => x.Id == viewModel.Id);
modelList.Remove(model);
});
}
public void DeriveRemovesOnRemoved()
{
var list = new RxList<string>("1", "2", "3");
int removed = -1;
list.Derive(x => int.Parse(x), x => removed = x);
list.Remove("2");
Assert.AreEqual(2, removed);
}
public void Removed()
{
var list = new RxList<string>("1", "2");
var item = new RxListItem<string>();
list.Removed.Subscribe(x => item = x);
list.Remove("1");
Assert.AreEqual(0, item.Index);
Assert.AreEqual("1", item.Value);
list.Remove("2");
Assert.AreEqual(0, item.Index);
Assert.AreEqual("2", item.Value);
list = new RxList<string>("1", "2");
list.Removed.Subscribe(x => item = x);
list.Remove("2");
Assert.AreEqual(1, item.Index);
Assert.AreEqual("2", item.Value);
list.Remove("1");
Assert.AreEqual(0, item.Index);
Assert.AreEqual("1", item.Value);
}
public void ObserveElement()
{
var one = new TestModel { StringProperty = "1" };
var two = new TestModel { StringProperty = "2" };
var list = new RxList<TestModel>(one, two);
string s = null;
list.ObserveElementProperty(x => x.StringProperty).Subscribe(x => s = x.Value);
list[0].StringProperty = "foo";
Assert.AreEqual("foo", s);
list.Remove(one);
one.StringProperty = "bar";
Assert.AreEqual("foo", s);
list[0] = new TestModel { StringProperty = "3" };
Assert.AreEqual("3", s);
}