SupportsEventValidationAttribute Class

Definition

Namespace:

System.Web.UI

Assembly:

System.Web.dll

Defines the metadata attribute that Web server controls use to indicate support for event validation. This class cannot be inherited.

public ref class SupportsEventValidationAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Class, AllowMultiple=false)]
public sealed class SupportsEventValidationAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Class, AllowMultiple=false)>]
type SupportsEventValidationAttribute = class
    inherit Attribute

Public NotInheritable Class SupportsEventValidationAttribute
Inherits Attribute

Inheritance

Object

Attribute

SupportsEventValidationAttribute

Attributes

AttributeUsageAttribute

Remarks

Event validation prevents forged postbacks to an ASP.NET Web page and can be enabled through the EnableEventValidation page directive.

For more information, see EnableEventValidation. For more information about attributes, see Attributes.

Notes to Inheritors

If you do not define the SupportsEventValidationAttribute attribute, your custom control does not automatically participate in event validation. However, your control can explicitly call ValidateEvent(String). If you handle event registration and validation, call ValidateEvent(String), and then you do not need to define this attribute on the control.

Constructors

SupportsEventValidationAttribute()

Initializes a new instance of the SupportsEventValidationAttribute class.

Properties

TypeId

When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute)

Methods

Equals(Object)	Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute)
GetHashCode()	Returns the hash code for this instance. (Inherited from Attribute)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsDefaultAttribute()	When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute)
Match(Object)	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

Explicit Interface Implementations

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)	Maps a set of names to a corresponding set of dispatch identifiers. (Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)	Retrieves the type information for an object, which can be used to get the type information for an interface. (Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32)	Retrieves the number of type information interfaces that an object provides (either 0 or 1). (Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)	Provides access to properties and methods exposed by an object. (Inherited from Attribute)