Setting text to bold in Table heading

Hi there.

I am dynamically creating a table within my ASP.Net (C#) page and adding this to an ASP Panel, using the command

PanelBlocksSecurity.Controls.Add(dTable);

I can get everything working correctly but my table headings are in normal case, whereas I would like them in bold font.

An example of one of my commands to add a header column is as follows:
HtmlTableCell headerCell2 = new HtmlTableCell();headerCell2.InnerText = "Select";
header ...