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EventHandlerList Class

Provides a simple list of delegates. This class cannot be inherited.

System.Object
  System.ComponentModel.EventHandlerList

Namespace:  System.ComponentModel
Assembly:  System (in System.dll)
[HostProtectionAttribute(SecurityAction.LinkDemand, SharedState = true)]
public sealed class EventHandlerList : IDisposable

The EventHandlerList type exposes the following members.

  NameDescription
Public methodSupported by the XNA FrameworkEventHandlerListInitializes a new instance of the EventHandlerList class.
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  NameDescription
Public propertySupported by the XNA FrameworkItemGets or sets the delegate for the specified object.
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  NameDescription
Public methodSupported by the XNA FrameworkAddHandlerAdds a delegate to the list.
Public methodSupported by the XNA FrameworkAddHandlersAdds a list of delegates to the current list.
Public methodSupported by the XNA FrameworkDisposeDisposes the delegate list.
Public methodSupported by the XNA FrameworkEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Public methodSupported by the XNA FrameworkGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodSupported by the XNA FrameworkGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodSupported by the XNA FrameworkRemoveHandlerRemoves a delegate from the list.
Public methodSupported by the XNA FrameworkToStringReturns a string that represents the current object. (Inherited from Object.)
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This class uses a linear search algorithm to find entries in the list of delegates. A linear search algorithm is inefficient when working with a large number of entries. Therefore, when you have a large list, finding entries is slow.

NoteNote

The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: SharedState. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

For an example of using an EventHandlerList, see How to: Handle Multiple Events Using Event Properties.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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.
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