This topic has not yet been rated - Rate this topic

CodeRemoveEventStatement Class

Represents a statement that removes an event handler.

System.Object
  System.CodeDom.CodeObject
    System.CodeDom.CodeStatement
      System.CodeDom.CodeRemoveEventStatement

Namespace:  System.CodeDom
Assembly:  System (in System.dll)
[SerializableAttribute]
[ComVisibleAttribute(true)]
[ClassInterfaceAttribute(ClassInterfaceType.AutoDispatch)]
public class CodeRemoveEventStatement : CodeStatement

The CodeRemoveEventStatement type exposes the following members.

  Name Description
Public method CodeRemoveEventStatement() Initializes a new instance of the CodeRemoveEventStatement class.
Public method CodeRemoveEventStatement(CodeEventReferenceExpression, CodeExpression) Initializes a new instance of the CodeRemoveEventStatement class with the specified event and event handler.
Public method CodeRemoveEventStatement(CodeExpression, String, CodeExpression) Initializes a new instance of the CodeRemoveEventStatement class using the specified target object, event name, and event handler.
Top
  Name Description
Public property EndDirectives Gets a CodeDirectiveCollection object that contains end directives. (Inherited from CodeStatement.)
Public property Event Gets or sets the event to remove a listener from.
Public property LinePragma Gets or sets the line on which the code statement occurs. (Inherited from CodeStatement.)
Public property Listener Gets or sets the event handler to remove.
Public property StartDirectives Gets a CodeDirectiveCollection object that contains start directives. (Inherited from CodeStatement.)
Public property UserData Gets the user-definable data for the current object. (Inherited from CodeObject.)
Top
  Name Description
Public method Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)
Top

CodeRemoveEventStatement can be used to represent a statement that removes an event handler for an event.

The Event property specifies the event to remove the event handler from. The Listener property specifies the event handler to remove.

The following example demonstrates use of a CodeRemoveEventStatement to remove a delegate from an event.


// Creates a delegate of type System.EventHandler pointing to a method named OnMouseEnter.
CodeDelegateCreateExpression mouseEnterDelegate = new CodeDelegateCreateExpression( new CodeTypeReference("System.EventHandler"), new CodeThisReferenceExpression(), "OnMouseEnter" );
// Creates a remove event statement that removes the delegate from the TestEvent event.
CodeRemoveEventStatement removeEvent1 = new CodeRemoveEventStatement( new CodeThisReferenceExpression(), "TestEvent", mouseEnterDelegate );

// A C# code generator produces the following source code for the preceeding example code:

//     this.TestEvent -= new System.EventHandler(this.OnMouseEnter);


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
Did you find this helpful?
(1500 characters remaining)
Community Content Add
Annotations FAQ