Literalcontrol controls implement dynamic addition of CSS

Source: Internet
Author: User
Using system;
Using system. Data;
Using system. configuration;
Using system. collections;
Using system. Web;
Using system. Web. Security;
Using system. Web. UI;
Using system. Web. UI. webcontrols;
Using system. Web. UI. webcontrols. webparts;
Using system. Web. UI. htmlcontrols;

Public partial class commonquery_pageregstyle: system. Web. UI. Page
Protected string stralert = "Hello, Happy New Year! ";
Protected void page_load (Object sender, eventargs E)

Protected override void onprerender (eventargs E)

String cssfragement = "<style type = 'text/CSS '>"
+ ". Commonquerybtn {"
+ "Border: 0; width: 64px; Height: 20px; Background: URL ('"
+ Httpruntime. appdomainappvirtualpath + @ "/images/button/btn.jpg ');"
+ "} </Style> ";
Literalcontrol include = new literalcontrol (cssfragement );
This. Page. header. Controls. Add (include );
Base. onprerender (E );
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