# How to: Specify the direction of the binding

This example shows how to specify whether the binding updates only the binding target (target) property, the binding source (source) property, or both the target property and the source property.

## Example

You use the Binding.Mode property to specify the direction of the binding. The following are the available options for binding updates:

<TextBlock Name="IncomeText" Grid.Row="0" Grid.Column="1"