Thank you for writing.
To achieve this you must change the grid parent when the selected page is changed:
sender, EventArgs e)
radGridView1.Parent = radPageView1.SelectedPage;
Let me know if I can assist you further.
Telerik by Progress
Check out the Windows Forms project converter, which aids the conversion process from standard Windows Forms applications written in C# or VB to Telerik UI for WinForms.For more information check out this blog post
and share your thoughts.