AFSearch question

Is it possible to search for elements that have an attribute value without using a template?  I understood with AF-SDK 2.10 that I could cast value type.

Attribute will always be a string.  Can my value be a wildcard?

I am getting the following exception: A template was not defined for the attribute path '|LocationCode'

            int count=1;

            string query = @"Root:'FacilityName' '|LocationCode':='0776-03-*'" ;

            using (var search = new AFElementSearch(afdb, "", query))

            {

                foreach (AFElement item in search.FindElements(0, true, 1000))

                {

                    Console.WriteLine("{0}: Element {1} has {2} Attributes.  Path:{3}", count++, item.Name, item.Attributes.Count, item.GetPath());

                }

            }