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copied!<p>I guess the first thing you need to understand is that ASP.NET is stateless. That means that no data is "saved" between pages. What the <code>PreviousPage</code> property does is it allows the request information persist through the use of a <code>Transfer</code> method, and the request information will be the GET or POST variables.</p> <p>IMHO, the best way to do what you desire, is to have a shared public class that is not related to either page, and have a public function for getting the <code>SqlConnection</code>. Remember though, it is stateless, so you will have to create the connection each time.</p> <p>Another alternative would be to save the dbConnection in the session (which I don't recommend, since it is possible to view the session information).</p> <p>Otherwise, you can't have a variable persist with information between pages. Thats what is means to be stateless.</p> <p>ALSO, for <code>PreviousPage</code>, keep in mind that it is creating an instance of <code>System.Web.UI.Page</code>, not an instance of <code>Protocol</code>. That means public properties won't exist from <code>Protocol</code>, only native features of <code>Page</code> will be there.</p> <p><b>edit</b></p> <p>From <a href="http://msdn.microsoft.com/en-us/library/ms178139.aspx" rel="nofollow">msdn</a></p> <p>Note</p> <p>Properties on the source page that are created primarily to expose values for cross-page posting are usually read-only properties. Although the source page can contain public read/write properties, setting a source page property from the target page property generally has no purpose, because the value will not be persisted.</p>

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