Trait BindingExpressionBase

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pub trait BindingExpressionBase:
    IDisposable
    + IValueEntry
    + Any {
    // Required methods
    fn priority(&self) -> BindingPriority;
    fn target_property(&self) -> Option<&'static FerroProperty>;
    fn default_priority(&self) -> BindingPriority;
    fn is_data_validation_enabled(&self) -> bool;
    fn as_any(&self) -> &dyn Any;

    // Provided methods
    fn update_source(&self) { ... }
    fn update_target(&self) { ... }
}

Expand description

The base of binding expressions: an instantiated binding on a target object. It is also the value entry through which the target’s value store reads the binding’s value.

Required Methods§

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fn priority(&self) -> BindingPriority

The priority of the binding expression.

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

The property that the binding expression is targeting.

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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.

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fn is_data_validation_enabled(&self) -> bool

Whether data validation is enabled for the binding expression.

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fn as_any(&self) -> &dyn Any

Provided Methods§

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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.

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