AddCSS
Dynamically adds a cascading style sheet (a.k.a. CSS) file to a page even if using master page.
Source
public static void AddCSS(this Page page, string url)
{
HtmlLink link = new HtmlLink();
link.Href = url;
link.Attributes["rel"] = "stylesheet";
link.Attributes["type"] = "text/css";
page.Header.Controls.Add(link);
}Example
public partial class Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
this.AddCSS("cssFile.css");
}
}