It looks like you are trying to simply output HTML content to a page through ASP.NET. If not, I apologize.
, ASP.NET Literal . , HTML- HTML , , .
<asp:Literal id="labelLiteral" runat="server"/>
...
/* Put into your server code. */
// This would be where your DB content comes from.
String content = "<strong>Some Label:</strong>";
// Wrap the content in a label. Obviously you'll want better format.
String output = String.Format("<label>{0}</label>", content);
// Push the output into the literal.
labelLiteral.Text = output;
, .