LayoutFarm.Demo_DragSelectionBox.ReleaseUserControllerBox C# (CSharp) Method

        void ReleaseUserControllerBox(UIControllerBox userControllerBox)
        {
            workingControllerBoxes.Remove(userControllerBox);
            userControllerBox.Visible = false;
            userControllerBox.TargetBox = null;
            userControllerBox.RemoveSelf();
            this.userControllerPool.Enqueue(userControllerBox);
        }
        void RemoveAllUserControllerBoxes()