Aerolinea.frmseleccionReservacion.btnD9_Click C# (CSharp) Method

private btnD9_Click ( object sender, EventArgs e ) : void
sender	object
e	EventArgs
return	void

        private void btnD9_Click(object sender, EventArgs e)
        {
            btnD9.BackColor = Color.Red;
        }

frmseleccionReservacion