System.Xml.Serialization.TypeScope.ParseWsdlArrayType C# (CSharp) Method

        static internal XmlQualifiedName ParseWsdlArrayType(string type, out string dims, XmlSchemaObject parent)
        {
            string ns;
            string name;

            int nsLen = type.LastIndexOf(':');

            if (nsLen <= 0)
            {
                ns = "";
            }
            else
            {
                ns = type.Substring(0, nsLen);
            }
            int nameLen = type.IndexOf('[', nsLen + 1);

            if (nameLen <= nsLen)
            {
                throw new InvalidOperationException(SR.Format(SR.XmlInvalidArrayTypeSyntax, type));
            }
            name = type.Substring(nsLen + 1, nameLen - nsLen - 1);
            dims = type.Substring(nameLen);

            // parent is not null only in the case when we used XmlSchema.Read(), 
            // in which case we need to fixup the wsdl:arayType attribute value
            while (parent != null)
            {
                if (parent.Namespaces != null)
                {
                    string wsdlNs = (string)parent.Namespaces.Namespaces[ns];
                    if (wsdlNs != null)
                    {
                        ns = wsdlNs;
                        break;
                    }
                }
                parent = parent.Parent;
            }
            return new XmlQualifiedName(name, ns);
        }

        protected void WriteXmlAttribute(XmlNode node, object container)
        {
            XmlAttribute attr = node as XmlAttribute;

            if (attr == null)
            {
                throw new InvalidOperationException(SR.XmlNeedAttributeHere);
            }
            if (attr.Value != null)
            {
                if (attr.NamespaceURI == Wsdl.Namespace && attr.LocalName == Wsdl.ArrayType)
                {
                    string           dims;
                    XmlQualifiedName qname = TypeScope.ParseWsdlArrayType(attr.Value, out dims, (container is XmlSchemaObject) ? (XmlSchemaObject)container : null);

                    string value = FromXmlQualifiedName(qname, true) + dims;

                    //<xsd:attribute xmlns:q3="s0" wsdl:arrayType="q3:FoosBase[]" xmlns:q4="http://schemas.xmlsoap.org/soap/encoding/" ref="q4:arrayType" />
                    WriteAttribute(Wsdl.ArrayType, Wsdl.Namespace, value);
                }
                else
                {
                    WriteAttribute(attr.Name, attr.NamespaceURI, attr.Value);
                }
            }
        }