Final answer:
WPF data binding modes include OneWay, TwoWay, OneTime, OneWayToSource, and Default, which dictate the direction and timing of data flow between the UI elements and the binding source.
Step-by-step explanation:
WPF Data Binding Modes
In Windows Presentation Foundation (WPF), data binding is the process that establishes a connection between the application UI and business logic. When the data source updates, the UI elements that are bound to the data source reflect changes automatically. WPF supports several data binding modes:
- OneWay: Updates the binding target (UI element) when the binding source (data) changes.
- TwoWay: Updates the binding source when the UI element changes, and vice versa.
- OneTime: Updates the binding target when the application starts or when the data context changes.
- OneWayToSource: Updates the binding source when the binding target changes. This is opposite of OneWay binding.
- Default: Uses the default mode of the binding target, which varies depending on the property that is being bound.
These modes are used to control the flow of data and updates between the source and the target. Choosing the correct binding mode depends on the scenario in which specific UI elements are being used within your application.