Add META keywords and Description in ASP.NET
Here is the syntax for programmatically adding META tags to an ASP.NET 2.0 page.
HtmlMeta metaDesc = new HtmlMeta();
metaDesc.Name = “description”;
metaDesc.Content = “Tips on roasting coffee at home”;
Page.Header.Controls.Add(metaDesc);
HtmlMeta metaKey = new HtmlMeta();
metaKey.Name = “keywords”;
metaKey.Content = “roast, coffee, home, tips”;
Page.Header.Controls.Add(metaKey);
ASP.NET will render the above code to valid XHTML META tags.
via Add META keywords and Description in ASP.NET (DigitalColony.com).