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ApplicationDirectoryMembershipCondition Class

Updated: January 2010

Determines whether an assembly belongs to a code group by testing its application directory. This class cannot be inherited.

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

public final class ApplicationDirectoryMembershipCondition implements IMembershipCondition, ISecurityEncodable, ISecurityPolicyEncodable

ApplicationDirectoryMembershipCondition determines whether an ApplicationDirectory Directory property contains the assembly URL evidence path. For example, if the ApplicationDirectory is C:\app1, then assemblies with URL evidence such as C:\app1, C:\app1\main.aspx, C:\app1\folder1, or C:\app1\folder1\main1.aspx match this membership condition. Code not in the C:\app1 directory, or one of its subdirectories, fails this membership condition test.

Code without either ApplicationDirectory or Url evidence always fails this membership condition test.


The membership condition is determined by the URL evidence for the application. You cannot configure the ApplicationDirectoryMembershipCondition object; it is predetermined by the location of the application.


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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0




January 2010

Added note about the origin for the membership condition.

Customer feedback.