private void Form1_Load(object sender, EventArgs e)
{
TextBox pp_Textbox1;
Calendar pp_Calendar1;
pp_Textbox1 = (TextBox)PreviousPage.FindControl(“Textbox1?);
pp_Calendar1 = (Calendar)PreviousPage.FindControl(“Calendar1?);
label1.Text = “Hello ” + pp_Textbox1.Text + “
” + “Date Selected: ” +
pp_Calendar1.SelectedDate.ToShortDateString();

this simple program has two errors
previouspage.findcontrol() does not exist in current context
selecteddate.toshortdate();