Struct ItemsChangedEventArgs 

pub struct ItemsChangedEventArgs<'a> {
    pub action: NotifyCollectionChangedAction,
    pub new_items: ItemsView<'a>,
    pub old_items: ItemsView<'a>,
    pub new_starting_index: i32,
    pub old_starting_index: i32,
}

A change to an untyped items list.

Fields

action: NotifyCollectionChangedAction

The action that caused the notification.

new_items: ItemsView<'a>

The items involved in the change (added, or the replacements).

old_items: ItemsView<'a>

The items affected by a replace, remove or move.

new_starting_index: i32

The index at which the change occurred, or -1.

old_starting_index: i32

The index at which a move, remove or replace occurred, or -1.

Implementations

impl ItemsChangedEventArgs<'static>

pub const RESET: ItemsChangedEventArgs<'static>

The arguments of a reset notification.

impl<'a> ItemsChangedEventArgs<'a>

pub fn add(new_items: impl Into<ItemsView<'a>>, new_starting_index: i32) -> Self

The arguments of an add of new_items at new_starting_index.

pub fn remove( old_items: impl Into<ItemsView<'a>>, old_starting_index: i32, ) -> Self

The arguments of a remove of old_items from old_starting_index.

Trait Implementations

impl<'a> Clone for ItemsChangedEventArgs<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ItemsChangedEventArgs<'a>

impl<'a> Debug for ItemsChangedEventArgs<'a>

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

Formats the value using the given formatter.

impl<'a> From<&NotifyCollectionChangedEventArgs<'a, Option<Rc<dyn AnyValue>>>> for ItemsChangedEventArgs<'a>

The change of a list of untyped items, as it is: the items are viewed in place.

fn from(e: &NotifyCollectionChangedEventArgs<'a, Option<BoxedValue>>) -> Self

Converts to this type from the input type.