private void ControlSaveButtonState()
{
if (selectedPageRange != null)
{
if (SelectionOptions.SelectedIndex == 0)
{
// extract option
if (selectedPageRange.IsEmpty())
{
SaveButton.IsEnabled = false;
}
else
{
SaveButton.IsEnabled = true;
}
}
else
{
// remove option
if (selectedPageRange.IsEntire())
{
SaveButton.IsEnabled = false;
}
else
{
SaveButton.IsEnabled = true;
}
}
}
}
