Binding.Mode property

Gets or sets a value that indicates the direction of the data flow in the binding.

Syntax

public BindingMode Mode { get; set; }

<Binding Mode="bindingModeMemberName"/>

XAML Values

bindingModeMemberName

A named constant from the BindingMode enumeration, such as OneWay.

Property value

Type: BindingMode

One of the BindingMode values.

Remarks

For OneWay and TwoWay bindings, dynamic changes to the source don't automatically propagate to the target. You must implement the INotifyPropertyChanged interface on the source object for this to happen. For C# or Microsoft Visual Basic, implement System.ComponentModel.INotifyPropertyChanged. For Visual C++ component extensions (C++/CX), implement Windows::UI::Xaml::Data::INotifyPropertyChanged.

For TwoWay bindings, changes to the target automatically propagate to the source, except if the binding target is the Text property. In that case, the update happens only when the TextBox loses focus.

For OneTime and OneWay bindings, calls to DependencyObject.SetValue automatically change the target value and delete the binding.

Examples

This example demonstrates how to set the binding mode in XAML.

<TextBox x:Name="MyTextBox" Text="Text" Foreground="{Binding Brush1, Mode=OneWay}"/>

Requirements

See also

Binding

XAML data binding sample

Data binding overview

Build date: 12/4/2012