public String Print() { DataTable dt = saletaskbll.ExportExcels(saletaskId); StringBuilder strb = new StringBuilder(); for (int i = 0; i < dt.Rows.Count; i++) { strb.Append("<tr><td>" + (i + 1) + "</td>"); //strb.Append("<td>" + dt.Rows[i][2] + "</td>"); strb.Append("<td>" + dt.Rows[i][0] + "</td>"); strb.Append("<td>" + dt.Rows[i][1] + "</td>"); strb.Append("<td>" + dt.Rows[i][3] + "</td>"); strb.Append("<td>" + dt.Rows[i][4] + "</td>"); strb.Append("<td>" + dt.Rows[i][5] + "</td></tr>"); } return(strb.ToString()); }