Class EventSink

Even sink service.

Inheritance
System.Object
Service
EventSink
DocumentEventSink
ViewerEventSink
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Syncfusion.Windows.Forms.Diagram
Assembly: Syncfusion.Diagram.Base.dll
Syntax
public abstract class EventSink : Service

Constructors

EventSink()

Initializes a new instance of the EventSink class.

Declaration
public EventSink()

Properties

Handlers

Gets the handlers.

Declaration
protected Hashtable Handlers { get; }
Property Value
Type Description
System.Collections.Hashtable

The handlers.

HighPriorityHandlers

Gets the high priority handlers.

Declaration
protected Hashtable HighPriorityHandlers { get; }
Property Value
Type Description
System.Collections.Hashtable

The high priority handlers.

Methods

AddHandler(EventKey, Delegate)

Adds the handler.

Declaration
protected void AddHandler(EventKey key, Delegate dNewHandler)
Parameters
Type Name Description
EventKey key

The key.
System.Delegate dNewHandler

The delegate.

RaiseCancelCollectionChangedEvent(CollectionExEventArgs)

Raises the cancel collection changed event.

Declaration
public virtual void RaiseCancelCollectionChangedEvent(CollectionExEventArgs evtArgs)
Parameters
Type Name Description
CollectionExEventArgs evtArgs

The CollectionExEventArgs instance containing the event data.

RaiseNodesChangedEvent(CollectionExEventArgs)

Raises the nodes changed event.

Declaration
public virtual void RaiseNodesChangedEvent(CollectionExEventArgs evtArgs)
Parameters
Type Name Description
CollectionExEventArgs evtArgs

The CollectionExEventArgs instance containing the event data.

RaiseNodesChangingEvent(CollectionExEventArgs)

Raises the nodes changing event.

Declaration
public virtual bool RaiseNodesChangingEvent(CollectionExEventArgs evtArgs)
Parameters
Type Name Description
CollectionExEventArgs evtArgs

The CollectionExEventArgs instance containing the event data.
Returns
Type Description
System.Boolean

true, if raise nodes changing event.

RaisePropertyChangedEvent(IPropertyContainer, String)

Raises the property changed event.

Declaration
public void RaisePropertyChangedEvent(IPropertyContainer nodeAffected, string strPropertyName)
Parameters
Type Name Description
IPropertyContainer nodeAffected

The node affected.
System.String strPropertyName

Name of the property.

RaisePropertyChangingEvent(IPropertyContainer, String, Object)

Raises the property changing event.

Declaration
public bool RaisePropertyChangingEvent(IPropertyContainer propertyContainer, string strPropertyName, object newValue)
Parameters
Type Name Description
IPropertyContainer propertyContainer

The property container.
System.String strPropertyName

Name of the property.
System.Object newValue

The new value.
Returns
Type Description
System.Boolean

true, raise property changing event.

RemoveHandler(EventKey, Delegate)

Removes the handler.

Declaration
protected void RemoveHandler(EventKey key, Delegate dHandler)
Parameters
Type Name Description
EventKey key

The key.
System.Delegate dHandler

The delegate.

Events

CancelCollectionChanged

Occurs when cancel the eventsink.

Declaration
public virtual event CancelCollectionChangedEventHandler CancelCollectionChanged
Event Type
Type
CancelCollectionChangedEventHandler

NodeCollectionChanged

Occurs when node collection changed.

Declaration
public virtual event CollectionExEventHandler NodeCollectionChanged
Event Type
Type
CollectionExEventHandler

NodeCollectionChanging

Occurs when node collection changing.

Declaration
public virtual event CollectionExEventHandler NodeCollectionChanging
Event Type
Type
CollectionExEventHandler

PropertyChanged

Occurs when property changed.

Declaration
public event PropertyChangedEventHandler PropertyChanged
Event Type
Type
PropertyChangedEventHandler

PropertyChanging

Occurs when property changing.

Declaration
public event PropertyChangingEventHandler PropertyChanging
Event Type
Type
PropertyChangingEventHandler