PhotonNetwork.JoinRoom C# (CSharp) Method

    public static void JoinRoom(RoomInfo listedRoom)
    {
        if (listedRoom == null)
        {
            Debug.LogError("JoinRoom aborted: you passed a NULL room");
            return;
        }

        JoinRoom(listedRoom.name);
    }

 public void OnClick_Button()
 {
     PhotonNetwork.JoinRoom(RoomInfo.Name);
 }