WebBrowserPermissionLevel Enum

Definition

Namespace:

System.Security.Permissions

Assembly:

System.Security.Permissions.dll

Source:

WebBrowserPermission.cs

Caution

Code Access Security is not supported or honored by the runtime.

Specifies the permission level for a Web browser.

public enum class WebBrowserPermissionLevel

[System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public enum WebBrowserPermissionLevel

[<System.Obsolete("Code Access Security is not supported or honored by the runtime.", DiagnosticId="SYSLIB0003", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type WebBrowserPermissionLevel = 

Public Enum WebBrowserPermissionLevel

Inheritance

Object

ValueType

Enum

WebBrowserPermissionLevel

Attributes

ObsoleteAttribute

Fields

Name	Value	Description
None	0	A Web browser that cannot navigate frames to HTML.
Safe	1	A Web browser that can safely navigate frames to HTML but with several restrictions.
Unrestricted	2	A Web browser that can navigate without restrictions.

Examples

The following example shows how to demand that the calling code has unrestricted permission to create a Web browser control.

[WebBrowserPermissionAttribute(SecurityAction.Demand, Level = WebBrowserPermissionLevel.Unrestricted)]

<WebBrowserPermissionAttribute(SecurityAction.Demand, Level:=WebBrowserPermissionLevel.Unrestricted)>
Public Sub Method03()
End Sub

Remarks

Caution

Code Access Security (CAS) has been deprecated across all versions of .NET Framework and .NET. Recent versions of .NET do not honor CAS annotations and produce errors if CAS-related APIs are used. Developers should seek alternative means of accomplishing security tasks.

Use this enumeration to set the Level property of the WebBrowserPermission class.

The Safe permission level restricts the following Web browser operations.

• A pop-up window cannot be created over the Web browser control.

• The Web browser control can only be navigated to its site of origin.

• The security settings of the Web browser control are reduced.