Aerolinea.seleccionReservacion.btnD4_Click C# (CSharp) Method

private btnD4_Click ( object sender, EventArgs e ) : void
sender	object
e	System.EventArgs
return	void

        private void btnD4_Click(object sender, EventArgs e)
        {
            btnD4.BackColor = Color.Red;
        }

seleccionReservacion