private void button2_Click(object sender, EventArgs e)
{
panel2.Controls.Clear();
Fm_manageRoom room = new Fm_manageRoom();
room.TopLevel = false;
panel2.Controls.Add(room);
room.Show();
button1.BackColor = Color.White;
button2.BackColor = Color.LightGray;
button3.BackColor = Color.White;
button4.BackColor = Color.White;
button5.BackColor = Color.White;
button6.BackColor = Color.White;
button7.BackColor = Color.White;
}
private void guna2Button6_Click(object sender, EventArgs e)
{
Fm_manageRoom room = new Fm_manageRoom();
room.Refresh();
}