private string GetSuggestions(DataObjectCollection collection, string search) { var entities = collection.Where(t => t.name.ToLower().Contains(search.ToLower())) .ToArray(); if (entities == null || entities.Length <= 0) { return(null); } var suggestion = string.Join(", ", entities.Select(t => t.name)); return(suggestion.Length > 64 ? suggestion.Substring(0, 64) + "..." : suggestion); }