Its a silly thing. I made it complex. I need the sum of pages in the footer row, then why should I think and confuse about GridViewTemplate and Itemplate class. Simply I added the Total pages in the session and recollect it in the DataControlRowType.Footer. Here is the code:
protected void gv1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
int RowTotalPages = Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "PagesReceived"));
TotalPages = TotalPages + RowTotalPages;
Session.Add("TotalPages", TotalPages.ToString());
}
if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[4].Text = "Batches Count: " + gv1.Rows.Count.ToString();
e.Row.Cells[5].Text = Session["TotalPages"].ToString();
}
}