How to Dynamically load the CSS using C#.Net?

using System.Web.UI.HtmlControls;

protected void Page_Load(object sender, EventArgs e)
{
HtmlLink css = new HtmlLink();
css.Href = ResolveClientUrl("~/style/StyleSheet.css");
css.Attributes["rel"] = "stylesheet";
css.Attributes["type"] = "text/css";
css.Attributes["media"] = "all";
Page.Header.Controls.Add(css);
}