Class RoutedEventArgs

The container for all state associated with a RoutedEvent

Inheritance
object
EventArgs
RoutedEventArgs
InputEventArgs
Inherited Members
Namespace: nanoFramework.UI
Assembly: nanoFramework.Graphics.dll
Syntax
public class RoutedEventArgs : EventArgs
Remarks

RoutedEventArgs constitutes the

RoutedEvent,

Handled,

Source and

OriginalSource

Different RoutedEventArgs can be used with a single RoutedEvent

The RoutedEventArgs is responsible for packaging the RoutedEvent, providing extra event state info, and invoking the handler associated with the RoutedEvent

Constructors

RoutedEventArgs()

Constructor for RoutedEventArgs

Declaration
public RoutedEventArgs()
Remarks

All members take default values

RoutedEvent defaults to null

Handled defaults to false

Source defaults to null

OriginalSource also defaults to null

RoutedEventArgs(RoutedEvent, object)

Constructor for RoutedEventArgs

Declaration
public RoutedEventArgs(RoutedEvent routedEvent, object source)
Parameters
Type Name Description
RoutedEvent routedEvent

The new value that the RoutedEvent Property is being set to
object source

The new value that the SourceProperty is being set to

RoutedEventArgs(RoutedEvent)

Constructor for RoutedEventArgs

Declaration
public RoutedEventArgs(RoutedEvent routedEvent)
Parameters
Type Name Description
RoutedEvent routedEvent

The new value that the RoutedEvent Property is being set to

Properties

Handled

Returns a boolean flag indicating if or not this RoutedEvent has been handled this far in the route

Declaration
public bool Handled { get; set; }
Property Value
Type Description
bool
Remarks

Initially starts with a false value before routing has begun

OriginalSource

Returns OriginalSource object that raised the RoutedEvent

Declaration
public object OriginalSource { get; }
Property Value
Type Description
object
Remarks

Always returns the OriginalSource object that raised the RoutedEvent unlike Source that may vary under specific scenarios

This property acquires its value once before the event handlers are invoked and never changes then on

RoutedEvent

Returns the RoutedEvent associated with this RoutedEventArgs

Declaration
public RoutedEvent RoutedEvent { get; set; }
Property Value
Type Description
RoutedEvent
Remarks

The RoutedEvent cannot be null at any time

Source

Returns Source object that raised the RoutedEvent

Declaration
public object Source { get; set; }
Property Value
Type Description
object

Methods

OnSetSource(object)

Invoked when the source of the event is set

Declaration
protected virtual void OnSetSource(object source)
Parameters
Type Name Description
object source

The new value that the SourceProperty is being set to
Remarks

Changing the source of an event can often require updating the data within the event. For this reason, the OnSource= method is protected virtual and is meant to be overridden by sub-classes of RoutedEventArgs

Also see Source

Extension Methods