CodeAccessPermission.Demand Method ()
Forces a SecurityException at run time if all callers higher in the call stack have not been granted the permission specified by the current instance.
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 FileIOPermission before performing a file operation requested by the caller.for the necessary
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. The call stack is typically represented as growing down, so that methods higher in the call stack call methods lower in the call stack. SecurityException is raised.succeeds only if no
Notes to Inheritors:
You cannot override this method.
Available since 1.1