How to fill datagrid

private void FillGrid()
       {
           // Set the start and max records.
           pageSize = 3;
           maxRec = dtSource.Rows.Count;
           PageCount = maxRec / pageSize;
           //  Adjust the page number if the last page contains a partial page.

           if (((maxRec % pageSize) > 0))
           {
               PageCount = (PageCount + 1);
           }
           // Initial seeings
           currentPage = 1;
           recNo = 0;
           //  Display the content of the current page.
           LoadPage();
       }

        private void LoadPage()
        {
            int i;
            int startRec;
            int endRec;
            DataTable dtTemp;
            // Duplicate or clone the source table to create the temporary table.
            dtTemp = dtSource.Clone();
            if ((currentPage == PageCount))
            {
                endRec = maxRec;
            }
            else
            {
                endRec = (pageSize * currentPage);
            }
            startRec = recNo;
            if ((dtSource.Rows.Count > 0))
            {
                // Copy the rows from the source table to fill the temporary table.
                for (i = startRec; (i <= (endRec - 1)); i++)
                {
                    dtTemp.ImportRow(dtSource.Rows[i]);
                    recNo = (recNo + 1);
                }
            }
            dataGridView1.DataSource = dtTemp;
            //DisplayPageInfo();
        }