System.EventArgs Class

Summary

EventArgs is the base class for classes containing event data.

C# Syntax:

[Serializable] public class EventArgs

This class contains no event data; it is used by events that do not pass state information to an event handler when an event is raised. If the event handler requires state information, the application must derive a class from this class to hold the data.

For example, the AssemblyLoadEventArgs class is used to hold the data for assembly load events, and contains a Assembly that describes the loaded assembly.

For more information about events, see the and EventHandler topics.

System Namespace

System.EventArgs Member List:

Public Constructors

ctor #1

Default constructor. This constructor is called by derived class constructors to initialize state in this type.

Public Fields

Empty

Represents an event with no event data.

Public Methods

Equals (inherited from System.Object)	See base class member description: System.Object.Equals Derived from System.Object, the primary base class for all objects.
GetHashCode (inherited from System.Object)	See base class member description: System.Object.GetHashCode Derived from System.Object, the primary base class for all objects.
GetType (inherited from System.Object)	See base class member description: System.Object.GetType Derived from System.Object, the primary base class for all objects.
ToString (inherited from System.Object)	See base class member description: System.Object.ToString Derived from System.Object, the primary base class for all objects.

Protected Methods

Finalize (inherited from System.Object)	See base class member description: System.Object.Finalize Derived from System.Object, the primary base class for all objects.
MemberwiseClone (inherited from System.Object)	See base class member description: System.Object.MemberwiseClone Derived from System.Object, the primary base class for all objects.

Hierarchy:

• System.Object
• System.EventArgs
  • System.AssemblyLoadEventArgs
  • System.ComponentModel.CancelEventArgs
  • System.ComponentModel.CollectionChangeEventArgs
  • System.ComponentModel.PropertyChangedEventArgs
  • System.ResolveEventArgs
  • System.UnhandledExceptionEventArgs
  • System.Xml.Schema.ValidationEventArgs
  • System.Xml.Serialization.UnreferencedObjectEventArgs
  • System.Xml.Serialization.XmlAttributeEventArgs
  • System.Xml.Serialization.XmlElementEventArgs
  • System.Xml.Serialization.XmlNodeEventArgs

System.EventArgs Member Details

Summary

Initializes a new instance of the EventArgs class.

Default constructor. This constructor is called by derived class constructors to initialize state in this type.

C# Syntax:

public EventArgs();

This constructor is only called by the common language runtime.

Return to top

Summary

Represents an event with no event data.

C# Syntax:

public static readonly EventArgs Empty;

The value of EventArgs.Empty is a read-only instance of EventArgs equivalent to the result of calling the EventArgs.#ctor constructor.

Return to top

Inherited
See base class member description: System.Object.Equals

C# Syntax:

public virtual bool Equals(    object obj );

For more information on members inherited from System.Object click on the link above.

Return to top

Inherited
See base class member description: System.Object.Finalize

C# Syntax:

~EventArgs();

For more information on members inherited from System.Object click on the link above.

Return to top

Inherited
See base class member description: System.Object.GetHashCode

C# Syntax:

public virtual int GetHashCode();

For more information on members inherited from System.Object click on the link above.

Return to top

Inherited
See base class member description: System.Object.GetType

C# Syntax:

public Type GetType();

For more information on members inherited from System.Object click on the link above.

Return to top

Inherited
See base class member description: System.Object.MemberwiseClone

C# Syntax:

protected object MemberwiseClone();

For more information on members inherited from System.Object click on the link above.

Return to top

Inherited
See base class member description: System.Object.ToString

C# Syntax:

public virtual string ToString();

For more information on members inherited from System.Object click on the link above.

Return to top

Top of page