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CodeAccessPermission.FromXml Method

When overridden in a derived class, reconstructs a security object with a specified state from an XML encoding.

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

abstract FromXml : 
        elem:SecurityElement -> unit

Parameters

elem
Type: System.Security.SecurityElement

The XML encoding to use to reconstruct the security object.

Implements

ISecurityEncodable.FromXml(SecurityElement)

ExceptionCondition
ArgumentNullException

The elem parameter is a null reference (Nothing in Visual Basic).

ArgumentException

The elem parameter does not contain the XML encoding for an instance of the same type as the current instance.

-or-

The version number of the elem parameter is not supported.

Custom code that extends security objects needs to implement the ToXml and FromXml methods to make the objects security-encodable.

Notes to Inheritors

You must override this method in a derived class.

The following code example shows an override of the FromXml method. This code example is part of a larger example provided for the CodeAccessPermission class.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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