System.ComponentModel.CollectionChangeEventArgs Class

Summary

Provides data for the DataColumnCollection.CollectionChanged event.

C# Syntax:

public class CollectionChangeEventArgs : EventArgs

A DataColumnCollection.CollectionChanged event is raised when you change which items are in a collection, for example, by adding an element to a collection or removing an element from the collection. This event is not raised when an individual element changes its value.

For an example on using the CollectionChangeEventArgs class, see the sample code in the DataColumnCollection.CollectionChanged event of the DataColumnCollection class.

System.ComponentModel Namespace | CollectionChangeEventHandler | CollectionChangeAction

System.ComponentModel.CollectionChangeEventArgs Member List:

Public Constructors

ctor #1

Initializes a new instance of the CollectionChangeEventArgs class.

Public Properties

Action	Read-only Gets an action that specifies how the collection changed.
Element	Read-only Gets the instance of the collection with the change.

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.ComponentModel.CollectionChangeEventArgs

System.ComponentModel.CollectionChangeEventArgs Member Details

Summary

Initializes a new instance of the CollectionChangeEventArgs class.

C# Syntax:

public CollectionChangeEventArgs(    CollectionChangeAction action,    object element );

action

One of the CollectionChangeAction values that specifies how the collection changed. One of the CollectionChangeAction values that specifies how the collection changed.

element

An Object that specifies the instance of the collection where the change occurred.

Return to top

Summary

Gets an action that specifies how the collection changed.

C# Syntax:

public virtual CollectionChangeAction Action {get;}

This property can have one of the following values:

Action	Property Value
An element was added to the collection	CollectionChangeAction.Add
An element was removed from the collection	CollectionChangeAction.Remove
The collection was completely changed	CollectionChangeAction.Refresh

Return to top

Summary

Gets the instance of the collection with the change.

C# Syntax:

public virtual object Element {get;}

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:

~CollectionChangeEventArgs();

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