PropertyPath Class

Definition

Namespace:

Windows.UI.Xaml

Implements a data structure for describing a property as a path below another property, or below an owning type. Property paths are used in data binding to objects.

public ref class PropertyPath sealed : DependencyObject

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
/// [Windows.Foundation.Metadata.Activatable(Windows.UI.Xaml.IPropertyPathFactory, 65536, "Windows.Foundation.UniversalApiContract")]
class PropertyPath final : DependencyObject

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
[Windows.Foundation.Metadata.Activatable(typeof(Windows.UI.Xaml.IPropertyPathFactory), 65536, "Windows.Foundation.UniversalApiContract")]
public sealed class PropertyPath : DependencyObject

Public NotInheritable Class PropertyPath
Inherits DependencyObject

Inheritance

Object Platform::Object IInspectable DependencyObject PropertyPath

Attributes

ActivatableAttribute ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows requirements

Device family	Windows 10 (introduced in 10.0.10240.0)
API contract	Windows.Foundation.UniversalApiContract (introduced in v1.0)

Remarks

The main reason you might work with a PropertyPath object is to clone existing binding properties and use them somewhere else:

• Get the Path from an existing binding (Binding.Path).
• Use that string value to construct a new PropertyPath.
• Create a new Binding. Use the new PropertyPath for its Binding.Path (and probably adjust some other properties too).
• Apply the new Binding to a different object-property combination, using SetBinding.

Animation targeting also uses a property path concept, as documented in the Property-path syntax topic. However, animation targeting doesn't use PropertyPath as the underlying type, it expresses the paths as strings and uses strings for all related API calls.

Constructors

PropertyPath(String)

Initializes a new instance of the PropertyPath class based on a path string.

Properties

Dispatcher	Gets the CoreDispatcher that this object is associated with. The CoreDispatcher represents a facility that can access the DependencyObject on the UI thread even if the code is initiated by a non-UI thread. (Inherited from DependencyObject)
Path	Gets the path value held by this PropertyPath.

Methods

ClearValue(DependencyProperty)	Clears the local value of a dependency property. (Inherited from DependencyObject)
GetAnimationBaseValue(DependencyProperty)	Returns any base value established for a dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject)
GetValue(DependencyProperty)	Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject)
ReadLocalValue(DependencyProperty)	Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject)
RegisterPropertyChangedCallback(DependencyProperty, DependencyPropertyChangedCallback)	Registers a notification function for listening to changes to a specific DependencyProperty on this DependencyObject instance. (Inherited from DependencyObject)
SetValue(DependencyProperty, Object)	Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject)
UnregisterPropertyChangedCallback(DependencyProperty, Int64)	Cancels a change notification that was previously registered by calling RegisterPropertyChangedCallback. (Inherited from DependencyObject)

See also

• DependencyObject
• Property-path syntax
• {Binding} markup extension