ASP.NET: Access Controls after using PostBackUrl

Whenever you execute a Cross Page Post-Back from one site to another by using

<asp:button PostBackUrl=“anotherpage.aspx" runat=“server"/>

be sure to set this on anotherpage.aspx to gain full access to the controls of the previous page:

<%@ PreviousPage VirtualPath=“previouspage.aspx" %>

Afer that, you can access the controls by using the Page.PreviousPage Property.

Example:

Textbox MyNewTextBox = PreviousPage.FindControl("PreviousPageTextBox");
Label1.Text = MyNewTextBox.Text;

Cheers!