UnityEditor.AudioMixersDataSource.GetInfoText C# (CSharp) Method

        private static string GetInfoText(AudioMixerController controller)
        {
            if (controller.outputAudioMixerGroup != null)
            {
                return string.Format("({0} of {1})", controller.outputAudioMixerGroup.name, controller.outputAudioMixerGroup.audioMixer.name);
            }
            return "(Audio Listener)";
        }

        public override void FetchData()
        {
            int  depth = -1;
            bool flag  = this.m_TreeView.state.expandedIDs.Count == 0;

            this.m_RootItem = new TreeViewItem(1010101010, depth, null, "InvisibleRoot");
            this.SetExpanded(this.m_RootItem.id, true);
            List <AudioMixerController> list = this.m_GetAllControllersCallback();

            this.m_NeedRefreshVisibleFolders = true;
            if (list.Count > 0)
            {
                List <AudioMixerItem> list2 = (from mixer in list
                                               select new AudioMixerItem(mixer.GetInstanceID(), 0, this.m_RootItem, mixer.name, mixer, AudioMixersDataSource.GetInfoText(mixer))).ToList <AudioMixerItem>();
                foreach (AudioMixerItem current in list2)
                {
                    this.SetChildParentOfMixerItem(current, list2);
                }
                this.SetItemDepthRecursive(this.m_RootItem, -1);
                this.SortRecursive(this.m_RootItem);
                if (flag)
                {
                    this.m_TreeView.data.SetExpandedWithChildren(this.m_RootItem, true);
                }
            }
        }