public override void StartDrag(TreeViewItem draggedNode, List <int> draggedNodes)
{
if (!EditorApplication.isPlaying)
{
List <AudioMixerItem> audioMixerItemsFromIDs = this.GetAudioMixerItemsFromIDs(draggedNodes);
DragAndDrop.PrepareStartDrag();
DragAndDrop.SetGenericData("AudioMixerDragging", new AudioMixerTreeViewDragging.DragData(audioMixerItemsFromIDs));
DragAndDrop.objectReferences = new UnityEngine.Object[0];
string title = draggedNodes.Count + " AudioMixer" + ((draggedNodes.Count <= 1) ? "" : "s");
DragAndDrop.StartDrag(title);
}
}