predicatebuilder

We have a project using LINQ to SQL, for which I need to rewrite a couple of search pages to allow the client to select whether they wish to perform an and or an or search. I though about redoing the LINQ queries using PredicateBuilder and have got this working pretty well I think. I effectively have a class containing my predicates, e.g.: internal static Expression<Func<Job, bool>> Description(string term) { return p => p.Description.Contains(term); } To perform the search i'm doing this (some code omitted for brevity): public Expression<Func<Job, bool>> ToLinqExpression() { var predicates =

I have a list of partial strings that I need to match in a table. I'm using PredicateBuilder. var predicate = PredicateBuilder.False<Name>(); List<string> names = new List<string>(); names.Add("test name"); **<===matches** names.Add("test"); **<=== doesn't match** predicate = predicate.Or(n => names.Contains(n.Company)); var results = (from n in Names .AsExpandable() .Where(predicate) select(new{ n.Company})); n.Company = "test name" This will match if the n.Company is exactly "test name" but it doesn't match if I just use "test". How do I match a partial on a list.Contains? You should change

I have recreated the Predicatebuilder class in a seperate C# project and I'm trying to use it in a VB.NET project but I keep getting the following error: Overload resolution failed because no accessible 'Or' accepts this number of arguments. when I use it like so: Dim predicate = PredicateBuilder.False(Of t_Quote)() predicate = predicate.Or(Function(q) q.iQuoteType = iQuoteType) The relivant project is referenced, I'm using the correct imports statement and it all compiles without any errors. Any idea where I'm going wrong? Here is the PredicateBuilder class in C# I'm using: public static

I previously asked a question about chaining conditions in Linq To Entities. Now I use LinqKit and everything works fine. I want to see the generated SQL and after reading this answer , I use LinqPad . This is my statement: var predProduct = PredicateBuilder.True<Product>(); var predColorLanguage = PredicateBuilder.True<ColorLanguage>(); predProduct = predProduct.And(p => p.IsComplete); predColorLanguage = predColorLanguage.And(c => c.IdColorEntity.Products.AsQueryable().Any(expr)); ColorLanguages.Where(predColorLanguage).Dump(); The code works in VS2008, compile and produce the correct result

I have two tables (TABLE1, TABLE2 - unique i know) that has a 1-to-many relationship respectively and a foreign key between ID columns of both tables. Using linq2sql I am trying to select all TABLE1 entries such that their corresponding TABLE2 values contains at least 1 item in the list I pass it. Here's some sample code I was using in LINQPad (awesome program) to test it out however am getting the error NotSupportedException: Unsupported overload used for query operator 'Any'. long[] items = { 3, 5, 8 }; var predicate = PredicateBuilder.False<TABLE2>(); foreach (long i in items) { long t = i;