Struct ReadOnlyObservableCollection 

pub struct ReadOnlyObservableCollection<T> { /* private fields */ }

A read-only view of an observable collection (ReadOnlyObservableCollection<T>).

Implementations

impl<T: Clone + PartialEq + 'static> ReadOnlyObservableCollection<T>

pub fn new(collection: ObservableCollection<T>) -> Self

The view of collection (ReadOnlyObservableCollection(ObservableCollection<T>)).

pub fn add_collection_changed( &self, handler: Rc<CollectionChangedHandler<T>>, ) -> u64

Adds a handler of the typed change notifications; returns the token that removes it (CollectionChanged +=).

pub fn remove_collection_changed(&self, token: u64) -> bool

Removes a handler (CollectionChanged -=).

pub fn count(&self) -> usize

The number of items (Count).

pub fn is_empty(&self) -> bool

pub fn get(&self, index: usize) -> T

The item at index (the indexer).

pub fn items(&self) -> Ref<'_, Vec<T>>

The items, borrowed.

pub fn to_vec(&self) -> Vec<T>

A copy of the items.

pub fn contains(&self, item: &T) -> bool

Whether the collection has item (Contains).

pub fn index_of(&self, item: &T) -> Option<usize>

The index of item (IndexOf).

Trait Implementations

impl<T> Clone for ReadOnlyObservableCollection<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Clone + PartialEq + Debug + 'static> Debug for ReadOnlyObservableCollection<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Clone + PartialEq + 'static> From<&ObservableCollectionExtended<T>> for ReadOnlyObservableCollection<T>

fn from(collection: &ObservableCollectionExtended<T>) -> Self

The view of the collection (new ReadOnlyObservableCollection<T>(observableCollectionExtended)).

impl<T: Clone + PartialEq + 'static> From<ObservableCollection<T>> for ReadOnlyObservableCollection<T>

fn from(collection: ObservableCollection<T>) -> Self

Converts to this type from the input type.

impl<T> INotifyCollectionChanged for ReadOnlyObservableCollection<T>

fn collection_changed(&self) -> &Event<CollectionChange>

The event raised when the collection changes.

impl<T> INotifyPropertyChanged for ReadOnlyObservableCollection<T>

fn property_changed(&self) -> &Event<str>

The event raised when a property value changes.

fn as_notify_property_changing(&self) -> Option<&dyn INotifyPropertyChanging>

The object as INotifyPropertyChanging, when it also raises the event of a property that is about to change; None by default.

impl<T: Clone + PartialEq + 'static> ObservableCollectionEx<T> for ReadOnlyObservableCollection<T>

fn notifying_collection(&self) -> ObservableCollection<T>

The observable collection whose changes are observed.

fn observe_collection_changes( &self, ) -> Rc<dyn IObservable<CollectionChangedEventPattern<T>>>

The notifications of the changes of the collection (ObserveCollectionChanges).

fn to_observable_change_set(&self) -> Rc<dyn IObservable<ChangeSet<T>>>

The items of the collection as change sets of a list: its items first, then each of its changes (ToObservableChangeSet<T>(), ToObservableChangeSet<TCollection, T>()).

fn to_observable_change_set_with_key<K: Eq + Hash + Clone + 'static>( &self, key_selector: impl Fn(&T) -> K + 'static, ) -> Rc<dyn IObservable<ChangeSet<T, K>>>

to_observable_change_set with each item keyed by key_selector (ToObservableChangeSet<TObject, TKey>(Func<TObject, TKey>)).

impl<T> PartialEq for ReadOnlyObservableCollection<T>

fn eq(&self, other: &Self) -> bool

A view of the same collection.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.