public static IEnumerable <XElement> ReplaceCsdlNamespacesForEdmVersion(XElement[] csdls, EdmVersion edmVersion)
        {
            var edmNamespace = EdmLibCsdlContentGenerator.GetCsdlFullNamespace(edmVersion);

            for (int i = 0; i < csdls.Count(); ++i)
            {
                if (edmNamespace != csdls[i].Name.Namespace)
                {
                    csdls[i] = XElement.Parse(csdls[i].ToString().Replace(csdls[i].Name.Namespace.NamespaceName, edmNamespace.NamespaceName));
                }
            }
            return(csdls);
        }
        public static string ReplaceCsdlNamespaceForEdmVersion(string csdl, EdmVersion edmVersion)
        {
            var edmNamespace = EdmLibCsdlContentGenerator.GetCsdlFullNamespace(edmVersion);
            var xmlReader    = XmlReader.Create(new StringReader(csdl));

            while (xmlReader.Read())
            {
                if (xmlReader.Name == "Schema")
                {
                    break;
                }
            }
            if (xmlReader.EOF)
            {
                throw new ArgumentException("{0} is not a well formed CSDL.");
            }
            return(csdl.Replace(xmlReader.NamespaceURI, edmNamespace.NamespaceName));
        }