Question : Storing a web page's data stream in a string

I would like to store the streamed html output of an .aspx file (the html that the end user sees) into a string in C#.   Is there an efficient & simple way to do this?

MetaFile.aspx.cs
------------------------
public void Page_Load()
{
     string [3] s;
     string s[1] = UserOutputOf("SubFile.aspx");
     string s[2] = UserOutputOf("www.somewhereOnWeb.com/home.html");
     string s[3] = UserOutputOf("www.somewhereOnWeb.com/try.aspx");

    Response.Write(s[Random(3)]);   // psuedo code
}

So when  mysite.com/Metafile.aspx is typed into a web browser it will return, at random, one of the three:  
   * the same output as mysite.com/SubFile.aspx
   * the same output as www.somewhereOnWeb.com/home.html  -- except broken images & links & such
   * ""  /try.aspx ""

The purpose here is not to copy the look of the web page, but to take in the same HTML stream that a web surfer's browser would see in these instances (given that this web surfer is the code above) and store it in a string.  

What would the function UserOutputOf(string web_addr) look like?

Answer : Storing a web page's data stream in a string

use Server.Execute ............

StringWriter objsw = null;
objsw = new StringWriter();
Server.Execute("defult.aspx" , objsw);
string sHtML =  objsw.GetStringBuilder().ToString();