Determines at run time whether all callers in the call stack have been granted the permission specified by the current permission object.
Assembly: mscorlib (in mscorlib.dll)
This method is typically used by secure libraries to ensure that callers have permission to access a resource. For example, a file class in a secure class library calls for the necessary FileIOPermission before performing a file operation requested by the caller.
The permissions of the code that calls this method are not examined; the check begins from the immediate caller of that code and proceeds up the stack. succeeds only if no SecurityException is raised.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.