System.Security.Policy.PolicyLevel.GetNamedPermissionSet C# (CSharp) Method

        public NamedPermissionSet GetNamedPermissionSet(string name)
        {
            return default(NamedPermissionSet);
        }

        /// <summary>Reconstructs a security object with a given state and policy level from an XML encoding.</summary>
        /// <param name="e">The XML encoding to use to reconstruct the security object. </param>
        /// <param name="level">The policy level within which the code group exists. </param>
        /// <exception cref="T:System.ArgumentNullException">The <paramref name="e" /> parameter is null. </exception>
        public void FromXml(SecurityElement e, PolicyLevel level)
        {
            if (e == null)
            {
                throw new ArgumentNullException("e");
            }
            string        text = e.Attribute("PermissionSetName");
            PermissionSet permissionSet;

            if (text != null && level != null)
            {
                permissionSet = level.GetNamedPermissionSet(text);
            }
            else
            {
                SecurityElement securityElement = e.SearchForChildByTag("PermissionSet");
                if (securityElement != null)
                {
                    Type type = Type.GetType(securityElement.Attribute("class"));
                    permissionSet = (PermissionSet)Activator.CreateInstance(type, true);
                    permissionSet.FromXml(securityElement);
                }
                else
                {
                    permissionSet = new PermissionSet(new PermissionSet(PermissionState.None));
                }
            }
            this.m_policy = new PolicyStatement(permissionSet);
            this.m_children.Clear();
            if (e.Children != null && e.Children.Count > 0)
            {
                foreach (object obj in e.Children)
                {
                    SecurityElement securityElement2 = (SecurityElement)obj;
                    if (securityElement2.Tag == "CodeGroup")
                    {
                        this.AddChild(CodeGroup.CreateFromXml(securityElement2, level));
                    }
                }
            }
            this.m_membershipCondition = null;
            SecurityElement securityElement3 = e.SearchForChildByTag("IMembershipCondition");

            if (securityElement3 != null)
            {
                string text2 = securityElement3.Attribute("class");
                Type   type2 = Type.GetType(text2);
                if (type2 == null)
                {
                    type2 = Type.GetType("System.Security.Policy." + text2);
                }
                this.m_membershipCondition = (IMembershipCondition)Activator.CreateInstance(type2, true);
                this.m_membershipCondition.FromXml(securityElement3, level);
            }
            this.m_name        = e.Attribute("Name");
            this.m_description = e.Attribute("Description");
            this.ParseXml(e, level);
        }