Customizing the Data Flow
In the examples so far, data updates flow from the source to the target. But, in some cases, the target property can be directly changed by users, and it would be useful to support the flowing of such changes back to the source. Indeed, Binding supports this (and more) via its Mode property, which can be set to one of the following values of the BindingMode enumeration:
→ OneWay—The target is updated whenever the source changes.
→ TwoWay—A change to either the target or source updates the other.
→ OneTime—This works just like OneWay, except changes to the source are not reflected at the target. The target retains a snapshot of the source at the time the Binding is initiated.
TwoWay binding is appropriate for editable ...
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