Provides a way to get strong typing against the previous page, as accessed through the PreviousPage property.
<%@ PreviousPageType attribute="value" [attribute="value"...] %>
Specifies the type name for the previous page.
Specifies the path to the file that generates the strong type.
Use the @ PreviousPageType directive to get strong typing against the PreviousPage property. You can use the @ PreviousPageType directive only on a Web Forms page (an .aspx file). If both attributes, TypeName and VirtualPath, are defined, the @ PreviousPageType directive will fail.
The following code example demonstrates how to specify the path to a file that generates the strong type.
<%@ PreviousPageType VirtualPath="~/SourcePage.aspx"%>