/// <summary>
        /// create a mapping
        /// </summary>
        public void CreateMappings(List<KeyValuePair<string, string>> keyvaluePairs, int mappingTypeId)
        {
            using (var context = new MappingModelContainer())
            {
                var lastMappingId = GetLastMappingId();

                foreach (var keyValuePair in keyvaluePairs)
                {
                    var m = Mapping.CreateMapping(++lastMappingId, keyValuePair.Key, keyValuePair.Value, mappingTypeId);
                    context.AddToMapping(m);
                    context.SaveChanges();
                }
            }
        }