Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

FileDialogPermissionAttribute Class

Allows security actions for FileDialogPermission to be applied to code using declarative security. This class cannot be inherited.

Namespace: System.Security.Permissions
Assembly: mscorlib (in mscorlib.dll)

[SerializableAttribute] 
[ComVisibleAttribute(true)] 
[AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false)] 
public sealed class FileDialogPermissionAttribute : CodeAccessSecurityAttribute
/** @attribute SerializableAttribute() */ 
/** @attribute ComVisibleAttribute(true) */ 
/** @attribute AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false) */ 
public final class FileDialogPermissionAttribute extends CodeAccessSecurityAttribute
SerializableAttribute 
ComVisibleAttribute(true) 
AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple=true, Inherited=false) 
public final class FileDialogPermissionAttribute extends CodeAccessSecurityAttribute

The scope of the declaration that is allowed depends on the SecurityAction that is used.

The security information declared by a security attribute is stored in the metadata of the attribute target and is accessed by the system at run time. Security attributes are used only for declarative security. For imperative security, use the corresponding permission class.

The following example of a declarative attribute shows the correct way to request FileDialogPermission and states that you must have at least this permission to run your code.

[assembly:FileDialogPermissionAttribute(SecurityAction.RequestMinimum, Unrestricted=true)]
//In C#, you must specify that you are using the assembly scope when making a request.

/** @assembly FileDialogPermissionAttribute(SecurityAction.RequestMinimum,
    Unrestricted = true)
 */
// In VJ#, you must specify that you are using the assembly scope when 
// making a request.

The following example shows how to demand that the calling code has FileDialogPermission at link time. Demands are typically made in managed libraries (DLLs) to help protect methods or classes from potentially harmful code.

[FileDialogPermissionAttribute(SecurityAction.Demand, Unrestricted=true)]

/** @attribute FileDialogPermissionAttribute(SecurityAction.Demand,
    Unrestricted = true)
 */

System.Object
   System.Attribute
     System.Security.Permissions.SecurityAttribute
       System.Security.Permissions.CodeAccessSecurityAttribute
        System.Security.Permissions.FileDialogPermissionAttribute
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0
Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

ADD
Show:
© 2014 Microsoft. All rights reserved.