Allows security actions for EnvironmentPermission to be applied to code using declarative security. This class cannot be inherited.
Assembly: mscorlib (in mscorlib.dll)
[SerializableAttribute] [AttributeUsageAttribute(AttributeTargets.Assembly|AttributeTargets.Class|AttributeTargets.Struct|AttributeTargets.Constructor|AttributeTargets.Method, AllowMultiple = true, Inherited = false)] [ComVisibleAttribute(true)] public sealed class EnvironmentPermissionAttribute : 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.
Environment variable names are case-insensitive. Multiple environment variable names are specified by separating the names using PathSeparator.
The following code example demonstrates how to request the EnvironmentPermission by using the class, indicating that at a minimum this permission is required to run the code.
The following example shows how to demand that the calling code have EnvironmentPermission. Demands are typically made in managed libraries (DLLs) to help protect methods or classes from potentially harmful code.
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.