System.FormatException: Input string was not in a correct format. at System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) at System.Number.ParseDecimal(String value, NumberStyles options, NumberFormatInfo numfmt) at System.Convert.ToDecimal(String value) at Hymns.Bookshop.Business.DataAccess.GetSearchResult(ScoreDoc result, Searcher searcher, Boolean userIsFriend) at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext() at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) at Hymns.Bookshop.Business.DataAccess.GetProductsFromIndexWithProductIds(List`1 productIds, Boolean friend) at Hymns.Bookshop.Business.DataAccess.GetProductFromIndex(Int32 productId, Boolean friend) at Hymns.Bookshop.Website.usercontrols.ProductDisplay.InitialiseControl(Boolean hideDetails)