Page.EnableViewStateMac Page.EnableViewStateMac Page.EnableViewStateMac Page.EnableViewStateMac Property

Definition

Gets or sets a value indicating whether ASP.NET should check message authentication codes (MAC) in the page's view state when the page is posted back from the client.

public:
 property bool EnableViewStateMac { bool get(); void set(bool value); };
[System.ComponentModel.Browsable(false)]
[get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")]
public bool EnableViewStateMac { get; set; }
member this.EnableViewStateMac : bool with get, set
Public Property EnableViewStateMac As Boolean
Property Value

true if the view state should be MAC checked and encoded; otherwise, false. The default is true.

Remarks

A view-state MAC is an encrypted version of the hidden variable that a page's view state is persisted to when the page is sent to the browser. When this property is set to true, the encrypted view state is checked to verify that it has not been tampered with on the client.

Do not set this property in code. Set the EnableViewStateMac attribute using the directive in the .aspx file. When the page is requested, the dynamically generated class sets the property.

Important

This attribute should never be set to false in a production Web site, even if the application or page does not use view state. The view state MAC helps ensure the security of other ASP.NET functions in addition to view state.

Applies to

See Also