Recursively find control from previous page

hi

i study more time asp.net starter kit and i found best code for finding previous page server control.

But from prevoius page you must use  postbackurl on button  or use  server.transfer("go.aspx");

The code is follow........

 

[sourcecode language="csharp"]

public sealed class Util{

private Util()
{

}
public static Control FindControlRecursively(string controlID, ControlCollection controls)
{

if (controlID == null || controls == null)
return null;
foreach (Control c in controls){
if (c.ID == controlID)
return c;
if (c.HasControls()){
Control inner = FindControlRecursively(controlID, c.Controls);
if (inner != null)
return inner;}
}

return null;
}
[/sourcecode]