CodeTV.Channel.GetPreviousSiblingChannel C# (CSharp) Méthode

        public Channel GetPreviousSiblingChannel()
        {
            ChannelFolder parentChannel = this.Parent;
            if (parentChannel != null)
            {
                int pos = parentChannel.ChannelList.IndexOf(this);
                if (pos > 0)
                    return parentChannel.ChannelList[pos - 1];
            }
            return null;
        }