Enum CollectionChanged

pub enum CollectionChanged {
    Add(ObjectValue),
    Remove(usize),
    ItemChanged {
        index: usize,
        property: FieldKind,
    },
}

Messages representing a change in a collection: either adding an item, removing an item, or updating an existing item.

Variants

Add(ObjectValue)

An item should be added in the collection.

Remove(usize)

An item in the collection should be removed.

ItemChanged

An item in the collection has changed one of its properties.

Fields

index: usize

Index of an item in the collection.

property: FieldKind

The change to the item.

Implementations

impl CollectionChanged

pub fn add( destination: Handle<UiNode>, direction: MessageDirection, value: ObjectValue, ) -> UiMessage

pub fn remove( destination: Handle<UiNode>, direction: MessageDirection, value: usize, ) -> UiMessage

pub fn item_changed( destination: Handle<UiNode>, direction: MessageDirection, index: usize, property: FieldKind, ) -> UiMessage

Trait Implementations

impl Clone for CollectionChanged

fn clone(&self) -> CollectionChanged

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CollectionChanged

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

Formats the value using the given formatter.

impl PartialEq for CollectionChanged

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for CollectionChanged