System.Net.SocketPermission.FromXml C# (CSharp) Method

        public override void FromXml(SecurityElement securityElement) {
            if (securityElement == null) {

                //
                // null SecurityElement
                //

                throw new ArgumentNullException("securityElement");
            }
            if (!securityElement.Tag.Equals("IPermission")) {

                //
                // SecurityElement must be a permission element
                //

                throw new ArgumentException(SR.GetString(SR.net_not_ipermission), "securityElement");
            }

            string className = securityElement.Attribute("class");

            if (className == null) {

                //
                // SecurityElement must be a permission element for this type
                //

                throw new ArgumentException(SR.GetString(SR.net_no_classname), "securityElement");
            }
            if (className.IndexOf(this.GetType().FullName) < 0) {

                //
                // SecurityElement must be a permission element for this type
                //

                throw new ArgumentException(SR.GetString(SR.net_no_typename), "securityElement");
            }

            //
            // Start recovering the state from XML encoding
            //

            initialize();


            String str = securityElement.Attribute("Unrestricted");

            if (str != null) {
                m_noRestriction = (0 == string.Compare( str, "true", StringComparison.OrdinalIgnoreCase ));
                if(m_noRestriction)
                    return;
            }

            m_noRestriction = false;
            m_connectList = new ArrayList();
            m_acceptList = new ArrayList();

            SecurityElement et = securityElement.SearchForChildByTag("ConnectAccess");
            if (et != null) {
                ParseAddXmlElement(et, m_connectList, "ConnectAccess, ");
            }
            et = securityElement.SearchForChildByTag("AcceptAccess");
            if (et != null) {
                ParseAddXmlElement(et, m_acceptList, "AcceptAccess, ");
            }
        }