how to display linq query data into gridview

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C#

sir
I have two datatables I am joining these two tables using linq query
I have following code.

DataTable dt = new DataTable();
           dt.Columns.Add("ID",typeof(string));
           dt.Columns.Add("Name", typeof(string));

           DataRow dr = dt.NewRow();
           dr["ID"] = "1";
           dr["Name"] = "Test1";
           dt.Rows.Add(dr);

           dr = dt.NewRow();
           dr["ID"] = "2";
           dr["Name"] = "Test2";
           dt.Rows.Add(dr);

           DataTable dt1 = new DataTable();
           dt1.Columns.Add("ID", typeof(string));
           dt1.Columns.Add("Product", typeof(string));

           dr = dt1.NewRow();
           dr["ID"] = "1";
           dr["Product"] = "Test-Product";
           dt1.Rows.Add(dr);
           dataGridView1.DataSource = dt;
           dataGridView2.DataSource = dt1;



           var c = from p in dt.AsEnumerable()
                   join d in dt1.AsEnumerable() on p.Field<string>           ("ID")        equals d.Field<string>("ID")
                          select new { ID = p.Field<string>("ID"), Name = p.Field<string>("Name"), Product = d.Field<string>("Product")};

I want to display the above Linq query c display into gridview
I have a code

dataGridView3.DataSource = c.CopyToDataTable<DataRow>();

But it is error
Pls give me answer.