global.asax

asp.net技术内幕的书配源码

<%@ Language="c#" %>
<%@ Import Namespace="System.Data" %>

<script runat=server>

DataTable dtblBannerAds;

public override void Init() {
   DataSet dstBannerAds;

  dstBannerAds = new DataSet();
  dstBannerAds.ReadXml( Server.MapPath( "adFile.xml" ) );
  dtblBannerAds = dstBannerAds.Tables[ 0 ];
}

void Application_PreSendRequestContent(Object sender , EventArgs e) 
 {
   string  strPageFooter;
   Random objRan;
   DataRow drowSelectedAd;

  objRan = new Random();
  drowSelectedAd = dtblBannerAds.Rows[ objRan.Next(dtblBannerAds.Rows.Count)];
  strPageFooter = String.Format("<hr><a href=\"{0}\"><img src=\"{1}\"></a>", drowSelectedAd[ "NavigateUrl" ], drowSelectedAd[ "ImageUrl" ]);
  Response.Write( strPageFooter );
}
</Script>