Crystal Reports Providing XML as datasource in RAS

Message

Hello, 
Im trying to generate report from an existing .rpt file using RAS and providing xml as its datasource. My problem is to connect report table with its datasource.
I want to do something like following but in RAS (Using ReportClientDocument object).
Dim datasetFromXml As New System.Data.DataSet
' Load dataset from xml 
ByVal reportDoc As CrystalDecisions.CrystalReports.Engine.ReportDocument
' Load report Document from .rpt file 
Dim i As Int32 = 0

For Each reportTable As CrystalDecisions.CrystalReports.Engine.Table In reportDoc.Database.Tables
       Dim dataTable As New System.Data.DataTable = datasetFromXml.Tables(i)
       reportTable.SetDataSource(dataTable)
       i += 1

Next

I would really appreciate any help. Thank you