//asp.net中动态更改网站的标题、描述、关键字、和样式表
if (!IsPostBack)
{
//Page title网页标题
Page.Title = "我的网站标题";
//须将网页head标签设成服务器控件模式，即<head runat="server">，否则无效
//Description网页描述
HtmlMeta desc = new HtmlMeta();
desc.Name = "Description";
desc.Content = "我的网站描述";
Page.Header.Controls.Add(desc);
//Keyword网页关键字
HtmlMeta keywords = new HtmlMeta();
keywords.Name = "keywords";
keywords.Content = "我的网站关键字";
Page.Header.Controls.Add(keywords);
//Link/CSS
HtmlLink cssLink = new HtmlLink();
cssLink.Href = "css/search.css";
cssLink.Attributes.Add("rel", "stylesheet");
cssLink.Attributes.Add("type", "text/css");
Page.Header.Controls.Add(cssLink);
}