Linq to entities casting error

Question

I am getting this error and I have collection of anonymous Datarows and each item contains two datarows. How to cast this?

Unable to cast object of type 'WhereSelectEnumerableIterator`2[VB$AnonymousType_0`2[System.Data.DataRow,System.Data.DataRow],VB$AnonymousType_0`2[System.Data.DataRow,System.Data.DataRow]]' to type 'System.Data.EnumerableRowCollection'.

here is a query that I am using

From d In DBDataTable.AsEnumerable _  
Join r In ReportDataTable.AsEnumerable _  
On Trim(r.Field(Of String)(id)) Equals Trim(d.Field(Of String)("id")) _  
 Where _  
 d.Field(Of Integer)("TId") = tId _   
And r.IsNull(DateCol) = False _   
AndAlso Convert.ToDateTime(r.Field(Of Object)(DateCol)).ToShortDateString() = Convert.ToDateTime(d.Field(Of Object)("DateCol")).ToShortDateString() _   
Order By d.Field(Of Integer)("ID") _  
 Select d, r

After this query I am getting a collection of Anonymous type with two Datarows with in each item of collection and basically I want to use that collection or looping through it, that's what I am trying to do.

Please help!