private void button10_Click(object sender, EventArgs e)
{
addBooking form = new addBooking(mc, Model);
form.Dock = DockStyle.Fill;
form.Show();
}
private void bookRoom_btn_Click(object sender, EventArgs e)
{
var form = new addBooking(mc, Model);
this.Hide();
form.Dock = DockStyle.Fill;
form.Show();
}