Loading a GridView into a DataTable and then back to another GridView

First, Loading a GridView into a DataTable, dt:

    private void initDataTable()
    {
        
        int i = 0;
        int j = 0;
        int totRow = GridView1.Rows.Count;
        int totCol = GridView1.Rows[0].Cells.Count;
        // Set the table headers
        string[] arrHeaders = {"Symbol","Name","Exchange" };
        // Get the table headers
        for (j = 0; j < totCol; j++)
        {
            // The commented line would work if the Gridview had Column HeaderText
            //dt.Columns.Add(new DataColumn(GridView1.Columns[col].HeaderText, typeof(string)));

            // Instead I use the Headers array, arrHeaders
            dt.Columns.Add(new DataColumn(arrHeaders[j].ToString(), typeof(string)));
        }
        DataRow dr;
        for (i = 0; i < totRow; i++)
        {
            dr = this.dt.NewRow();            
            for (j = 0; j < totCol; j++)
            {
                dr[j] = GridView1.Rows[i].Cells[j].Text;
            }
            this.dt.Rows.Add(dr);
        }
    }

Then back to another GridView:

    private void fillGridView2()
    {
        if (dt.Rows.Count > 0)
        {
            GridView2.DataSource = dt;
            GridView2.DataBind();
        }
        else
        {
            dt.Rows.Add(dt.NewRow());
            GridView2.DataSource = dt;
            GridView2.DataBind();

            int TotalColumns = GridView2.Rows[0].Cells.Count;
            GridView2.Rows[0].Cells.Clear();
            GridView2.Rows[0].Cells.Add(new TableCell());
            GridView2.Rows[0].Cells[0].ColumnSpan = TotalColumns;
            GridView2.Rows[0].Cells[0].Text = "No Record Found";
        }
    }

The no record found code was from this link.