private void LoadExpandedState()
 {
     int[] intArray = SessionState.GetIntArray(AudioMixerGroupTreeView.GetUniqueAudioMixerName(this.m_Controller), null);
     if (intArray != null)
     {
         this.m_AudioGroupTreeState.expandedIDs = new List <int>(intArray);
     }
     else
     {
         this.m_AudioGroupTree.state.expandedIDs = new List <int>();
         this.m_AudioGroupTree.data.SetExpandedWithChildren(this.m_AudioGroupTree.data.root, true);
     }
 }
 private void SaveExpandedState()
 {
     SessionState.SetIntArray(AudioMixerGroupTreeView.GetUniqueAudioMixerName(this.m_Controller), this.m_AudioGroupTreeState.expandedIDs.ToArray());
 }