Add new row to table

 HtmlTable baseCalendar = new HtmlTable();
 HtmlTableRow calendarRow = new HtmlTableRow();
 HtmlTableCell calendarCell = new HtmlTableCell();

 for (int i = 1; i < 7; i++)
 {
     calendarRow = new HtmlTableRow();

     for (int k = 0; k < 7; k++)
     {
         calendarCell = new HtmlTableCell();
         calendarRow.Cells.Add(calendarCell);
     }     

     baseCalendar.Rows.Add(calendarRow);                
 }
 //in this place how can add new row to first row of `baseCalendar`

for example :

 baseCalendar="
 <table>
   <tr id='row1'>
      <td></td>
      <td></td>
   </t开发者_开发问答r>
 </table>"

how can add new row befor row1

You can use Insert method, like this:

...
HtmlTableRow headers = new HtmlTableRow();
headers.Cells.Add(new HtmlTableCell("sat"));
...

baseCalendar.Rows.Insert(1, headers);