Can you name the main types of data binding used in WPF?

In WPF, the main types of data binding include:

• OneWay — data is transferred only from the source to the receiver. Changes in the source are reflected in the UI, but not vice versa.
• TwoWay — two-way binding. Changes in the UI update the source, and vice versa.
• OneWayToSource — data is transferred only from the UI to the source.
• OneTime — data is transferred once during initialization; further changes are not tracked.

Example of TwoWay binding in XAML:

<TextBox Text="{Binding Path=UserName, Mode=TwoWay}" />

Here, the UserName property from the data model will be synchronized with the text in the TextBox in both directions.