Gets or sets a value that indicates the direction of the data flow of this binding.
Assembly: PresentationFramework (in PresentationFramework.dll)
Property ValueType: System.Windows.Data.BindingMode
One of the BindingMode values. The default value is Default, which returns the default binding mode value of the target dependency property. However, the default value varies for each dependency property. In general, user-editable control properties, such as TextBox.Text, default to two-way bindings, whereas most other properties default to one-way bindings.
A programmatic way to determine whether a dependency property binds one-way or two-way by default is to get the property metadata of the property using GetMetadata and then check the Boolean value of the BindsTwoWayByDefault property.
The values of the UpdateSourceTrigger properties determine the functionality of the MultiBinding and are used as the default values for all the bindings in the collection unless an individual binding overrides these properties. For example, if the property on the MultiBinding object is set to TwoWay, then all the bindings in the collection are considered TwoWay unless you set a different value on one of the bindings explicitly. For more information, see the Binding.Mode and Binding.UpdateSourceTrigger properties.and
Available since 3.0