Save data from two gridview

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ASP.NET4

How to save data from two columns of gridview on the clicking of save button.
I used below code.

string pageid1 = "";
            foreach (GridViewRow grrow1 in Gridheader.Rows)
            {
                CheckBox chk = (CheckBox)grrow1.FindControl("Chk1");
                if (chk.Checked == true)
                {
                    Label id1 = (Label)grrow1.FindControl("lblpageid");
                    pageid1 = id1.Text.ToString();
                    string pageid = "";
                    foreach (GridViewRow grrow in Gridpage.Rows)
                    {
                        CheckBox chk1 = (CheckBox)grrow.FindControl("chk2header");
                        if (chk1.Checked == true)
                        {
                            con.Open();
                            Label id = (Label)grrow.FindControl("lbl2pageid");
                            pageid = pageid1.ToString();
                            cmd = new SqlCommand("Save_Pages", con);
                            cmd.CommandType = CommandType.StoredProcedure;
                            cmd.Parameters.AddWithValue("@typeid", ddlSelectedtypeid.SelectedValue);
                            cmd.Parameters.AddWithValue("@pageid", pageid);
                            cmd.ExecuteNonQuery();
                            con.Close();
                        }
                    }
                }

But data is not successfully saved.please giv me code