1 protected void Application_BeginRequest(Object sender, EventArgs e)
 2         {
 3             string url = Request.AppRelativeCurrentExecutionFilePath;
 4             Regex regex = new Regex(@"~/([A-Za-z]+).html");
 5             Regex regex1 = new Regex(@"~/([A-Za-z]+)_(\d+).html");
 6             Regex regex2 = new Regex(@"~/([A-Za-z]+)_(\d+)_(\d+).html");
 7             if (regex.IsMatch(url))
 8             {
 9                 string realPath = regex.Replace(url, @"/$1.aspx");
10                 Context.RewritePath(realPath);
11             }
12             else if (regex1.IsMatch(url))
13             {
14                 string realPath = regex1.Replace(url, @"/$1.aspx?pag=$2");
15                 Context.RewritePath(realPath);
16             }
17             else if (regex2.IsMatch(url))
18             {
19                 string realPath = regex2.Replace(url, @"/$1.aspx?cat=$2&pag=$3");
20                 Context.RewritePath(realPath);
21             }
22         }