void setupViewPager()
{
adapter = new customViewPagerAdapter(ChildFragmentManager);
adapter.AddFragment(SmallFragment.newInstance("1"), "first");
adapter.AddFragment(SmallFragment.newInstance("2"), "second");
adapter.AddFragment(SmallFragment.newInstance("3"), "third");
adapter.AddFragment(SmallFragment.newInstance("4"), "fouth");
viewPager.Adapter = adapter;
}
void btn_Click(object sender, EventArgs e)
{
adapter.AddFragment(SmallFragment.newInstance("5"), "fifth");
adapter.NotifyDataSetChanged();
}
