private void button2_Click(object sender, EventArgs e)
{
selection0.Location = new Point(selection0.Location.X, Btn_danhsach.Location.Y);
UCT_home.Hide();
}
private void button1_Click(object sender, EventArgs e)
{
selection0.Location = new Point(selection0.Location.X, Bnt_Home.Location.Y);
UCT_home.Show();
}