protected override void AddAttributesToRender (HtmlTextWriter w)
{
base.AddAttributesToRender (w);
AddDisplayStyleAttribute (w);
if (!IsEnabled)
return;
// add attributes - only if they're not empty
string t = Target;
string s = NavigateUrl;
if (s.Length > 0)
w.AddAttribute (HtmlTextWriterAttribute.Href, ResolveClientUrl (s));
if (t.Length > 0)
w.AddAttribute (HtmlTextWriterAttribute.Target, t);
}