pub struct NotifyCollectionChangedEventArgs<'a, T> {
pub action: NotifyCollectionChangedAction,
pub new_items: &'a [T],
pub old_items: &'a [T],
pub new_starting_index: i32,
pub old_starting_index: i32,
}Expand description
Describes a change to a collection.
Indexes are -1 when not applicable to the action, as in the notification
model this mirrors.
Fields§
§action: NotifyCollectionChangedAction§new_items: &'a [T]§old_items: &'a [T]§new_starting_index: i32§old_starting_index: i32Implementations§
Source§impl<T> NotifyCollectionChangedEventArgs<'_, T>where
T: Clone,
impl<T> NotifyCollectionChangedEventArgs<'_, T>where
T: Clone,
The change as an owned, shareable value: what untyped code (an event handler wired up by markup) is given, since the borrowed form cannot be held in an untyped value.
Auto Trait Implementations§
impl<'a, T> Freeze for NotifyCollectionChangedEventArgs<'a, T>
impl<'a, T> RefUnwindSafe for NotifyCollectionChangedEventArgs<'a, T>where
&'a [T]: RefUnwindSafe,
impl<'a, T> Send for NotifyCollectionChangedEventArgs<'a, T>
impl<'a, T> Sync for NotifyCollectionChangedEventArgs<'a, T>
impl<'a, T> Unpin for NotifyCollectionChangedEventArgs<'a, T>
impl<'a, T> UnsafeUnpin for NotifyCollectionChangedEventArgs<'a, T>where
&'a [T]: UnsafeUnpin,
impl<'a, T> UnwindSafe for NotifyCollectionChangedEventArgs<'a, T>where
&'a [T]: UnwindSafe,
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> ClassDefaults for Twhere
T: ?Sized,
impl<T> ClassDefaults for Twhere
T: ?Sized,
Source§fn static_constructor()
fn static_constructor()
The static constructor of a type: work done once per thread, after
the properties of the type are registered and before its first
instance exists (class handlers,
affects_render, metadata
overrides). Read more