Copy the page automatically from the current richtextbox to new richtextbox

[damtoii]

I created a richtextbox and I can input some text and also I add the printpreviewdia log for me to determine if how many pages in my first richtextbox. Now I want to copy some pages automatically for example the if the first richtextbox contains a 4pages and I would like to copy only the 2nd page and it is automatic copy without highlighted the text to the second richtextbox. How could it be ?

To determined if how many pages in my first richtextbox I used this codes:

try
{
PrintPreviewDia log1.Document = PrintDocument1;
PrintPreviewDia log1.ShowDialog ();
PrintPreviewDia log1.WindowStat e = FormWindowState .Maximized;


}
catch (Exception ex)
{
MessageBox.Show (ex.Message.ToS tring(), "Error");
}