private void WalkCtrlsForAssignment(Control X)
{
foreach (Control c in X.Controls) {
if (c is IActivatePageNavItem) {
IActivatePageNavItem btn = (IActivatePageNavItem)c;
if (btn.PageNumber == PageNumber) {
btn.IsSelected = true;
}
WalkCtrlsForAssignment(c);
} else {
WalkCtrlsForAssignment(c);
}
}
}