Cross-page postbacks and back again retaining data from source page

Question

Is it possible to use cross-page postbacks (or a similar method, perhaps Server.Transfer) to post form data (say, Data-set A) to a page, which then allows the user to add so

Answer 1

You first create a class that keep your information and its going to move from page to page and fill with data.

In every page you have a reference to this class, a variable, that ether create a new ether get it from the previous page. You store it on ViewState

Now from Page1 -> Page2.

You send it from Page1 by set to the

PostBackUrl="Page2.aspx"

On page2.aspx you set where you can get informations

<%@ PreviousPageType VirtualPath="~/Page1.aspx" %>

and you get them by...

if (Page.PreviousPage != null)
{
    if(Page.PreviousPage.IsCrossPagePostBack == true)
    {
        GetTheClass = PreviousPage.MyDataClass;
    }
}

And one other manual way is to make your class seriable, send it as xml via post, and decode it on the next page.