方法一: < HEAD > < title > WebForm1 </ title > < LINK rel ="stylesheet" type ="text/css" href ="" id ="mycss" > </ HEAD > private void Button1_Click( object sender, System.EventArgs e) {Page.RegisterStartupScript("css",@"<script>mycss.styleSheet.addImport('stylesheet1.css')</script>"); } 方法二:--- ..抄来的... < HEAD > < title > WebForm1 </ title > < asp:placeholder id ="myplaceholder" runat ="server" ></ asp:placeholder > </ HEAD > private void Button2_Click( object sender, System.EventArgs e) { System.Web.UI.Control a = Page.FindControl("myplaceholder"); System.Web.UI.HtmlControls.HtmlGenericControl objLink = new HtmlGenericControl("LINK"); objLink.Attributes.Add("rel","stylesheet"); objLink.Attributes.Add("type","text/css"); objLink.Attributes.Add("href","StyleSheet1.css"); objLink=objLink; a.Controls.Add(objLink); } [注] asp:placeholder 这是控件是主要是起"占位符的做用" posted on 2005-08-02 10:12 蓝色太平洋 阅读(607) 评论(2) 编辑 收藏 所属分类: 美工 转载于:https://www.cnblogs.com/xA51121/archive/2007/11/16/961494.html