dataset to reportviewer asp.net C#

I need some help... I have displayed in a gridview some data from a sqldatasource that I have successfully grab that data that's displaying in the grid view into a dataset which I have confirmed writing it to a XML file and viewing the data. My problem is that I want to take that dataset and display it in reportviewer(NOT crystal reports) any way I can do this? I tried for many days but no success, I have even tried taking the XML file but reportviewer don't accept this type. Here's the code

    protected void btnReport_Click(object sender, EventArgs e)
    {

        DataSourceSelectArguments args = new DataSourceSelectArguments();          
        DataView view = (DataView)SqlDataSource1.Select(args);

        DataTable table = view.ToTable();

        DataSet ds = new DataSet();

        ds.Tables.Add(table);
        ds.WriteXml("employeeData.xml");




    }