Struct IndexerBindingExpression 

pub struct IndexerBindingExpression { /* private fields */ }

The binding expression of an IndexerBinding: binds a property of the target to a registered property of another object.

The source and the target are held weakly: unlike the managed implementation there is no collector for the reference cycle that a binding between two objects (or of an object to itself) would otherwise create.

Implementations

impl IndexerBindingExpression

pub fn new( source: &FerroObject, source_property: &'static FerroProperty, target: &FerroObject, target_property: Option<&'static FerroProperty>, mode: BindingMode, ) -> Rc<Self>

Trait Implementations

impl BindingExpressionBase for IndexerBindingExpression

fn priority(&self) -> BindingPriority

The priority of the binding expression.

fn target_property(&self) -> Option<&'static FerroProperty>

The property that the binding expression is targeting.

fn default_priority(&self) -> BindingPriority

The preferred priority of the binding expression; the priority passed to attach may differ if the binding targets a direct property, in which case it is elevated to local value priority.

fn is_data_validation_enabled(&self) -> bool

Whether data validation is enabled for the binding expression.

fn update_source(&self)

Sends the current binding target value to the binding source property in two-way or one-way-to-source bindings. Does nothing for other modes. If the update source trigger of the binding is explicit, this must be called for changes to propagate back to the source.

fn update_target(&self)

Forces a data transfer from the binding source to the binding target.

fn as_any(&self) -> &dyn Any

impl Drop for IndexerBindingExpression

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl IDisposable for IndexerBindingExpression

fn dispose(&self)

impl UntypedBindingExpression for IndexerBindingExpression

fn base(&self) -> &UntypedBindingExpressionBase

fn description(&self) -> String

A description of the binding expression.

fn write_value_to_source(&self, value: Option<BoxedValue>) -> bool

Writes the specified value to the binding source if possible. Returns true if the value could be written.

fn start_core(&self)

Starts the binding expression. Do not call directly; call start.

fn stop_core(&self)

Stops the binding expression. Do not call directly; call stop.

fn should_log_error(&self) -> Option<Ref<FerroObject>>

The target to log errors against, if an error should be logged given the current state of the binding expression.

fn update_source_core(&self)

fn update_target_core(&self)

fn start(&self, produce_value: bool)

Starts the binding expression.

fn stop(&self)

Stops the binding expression.

fn dispose_expression(&self)

Terminates the binding.

fn log_error(&self, error: &str, level: LogEventLevel)

Logs a binding error against the target, if there is one.