Scalar functions using BLToolkit and Linq

I'm in the process of converting my SQL procedures to Linq using the BLToolkit library.

Now I'm stuck on a little problem so if anyone know is this possible I will really appreciate the help.

Anyway I have the sql query that looks something like this (NOTE: this is not my actual table names, i just translated them so you guys can understand what's going on)

select
     P.ProductsID,
     P.Name,
     P.Description,
     dbo.GetTax(P.TaxID, getdate()) -- this is what I need help with
from
     Products P

Nothing too fancy here except that I need to get the tax for every product on current day.

Now I need t开发者_如何转开发o convert this to Linq, but I don't know is this even possible. I tried something like this

from p in Products
select new
{
    p.ProductsID,
    p.Name,
    p.Description,
    GetTax(p.TaxID, DateTime.Today) //this is what I need help with
}

and it doesn't work. GetWork function is essentialy just another linq query that returns the tax. I don't know how to call the scallar function using BLToolkit library.

So the question is this. Is it possible to call scalar functions from Linq selected statement?

Define the following function somewhere.

[SqlFunction(ServerSideOnly=true)]
public static double GetTax(int id, DateTime dt)
{
    throw new NotImplementedException();
}

It will tell BLToolkit to translate GetTax to SQL.