Dynamic LINQ - Knowledge Base (KB)

How can I make Lambda in LINQ filter for dynamic LINQ?

Example-I have a person class ...Public Class Person Private _fname As String Public Property Fname() As String Get Return _fname End Get Set(ByVal value As String) _fname = value End Set End Property Private _lname As Str...

LINQ to Objects has a dynamic where clause.

I know there are a lot of examples of this on the web, but I can't seem to get this to work....Let me try to set this up, I have a list of custom objects that I need to have limited on a range of values. ...I have a sort variable that changes based on so...

Make a new Linq Select. Several extension methods

I am using Linq.Dynamic. I have already added another SelectMany extension to all for creating a new anonymous object with the data. But, I have ran into another issue that I can not seem to solve. ...I want to have extension method chaining as follows, b...

Implementation of Linq.Dynamic GroupJoin

I am working on creating an Extension Method in the Linq.Dynamic project for GroupJoin. But, for some reason it will not run. The signatures seem to match....public static IQueryable GroupJoin(this IQueryable outer, IEnumerable inner, string outerSelector...

How to retrieve count and list from IQueryable with LINQ DynamicLibrary

I have started experimenting a bit with the LINQ DynamicLibrary. I am trying to replace a bunch of LINQ statements with a few or just one Dynamic LINQ query. My existing static query is as follows:...private List<TicketChartData> GenerateImpl(IList<Servic...

Can somebody please help? Type parameters cannot be determined from use.

I am trying to use Dynamic Linq (the one published by ScottGu) to do a GroupBy (lambda expression). I have an object. And i am doing AsQueryable. THis is what i have.....var result = Items.AsQueryable().GroupBy("DeliveryDate"); ...but it gives me an error...

OrderBy inside a GroupBy using dynamic LINQ?

I had the following query using normal linq and it was working great (using anonymous type),... var result = from s in Items group s by s.StartTime into groupedItems select new {groupedItems.Key, Items= groupedItems.OrderBy(x =...

How to filter a collection with a dynamically formed type using the LINQ where clause

I need to filter the ObservableCollection using LINQ Where clause in my Silverlight application....The object type is dynamically created using method provided in following url. ...http://mironabramson.com/blog/post/2008/06/Create-you-own-new-Type-and-use...

Call function in dynamic linq

I'm trying to call a function in a dynamic linq select statement, but im getting error:...No property or field 'A' exists in type 'Tuple2' ...Example code:...void Main() { var a = new Tuple<int, int>(1,1); var b = new[]{ a }; var q = b.AsQuery...

How can I use System.Linq.Dynamic to check if a JSON object matches a predicate

I am trying to match a complex json-object to a user-defined filter/predicate by using Json.NET and System.Linq.Dynamic. Here is my code:...var json = @"{""Name"":""Jane Doe"",""Occupation"":""FBI Consultant""}"; dynamic person = JObject.Parse(json); var ...

How to dynamically build and store complex linq queries against a list of hierarchical objects?

I have a list of objects in a hierarchical structure. I want to build complex LINQ queries against that object list based on "conditions" a client company sets and are stored in the database. So I need to build these at run time, but because they will be ...