Esri.ArcGISRuntime.Toolkit.Controls.LegendTree.OnScaleChanged C# (CSharp) Method

        private void OnScaleChanged()
        {
            //Update Layer Visibilities is expensive, so wait for the map to stop navigating so
            //map navigation performance doesn't suffer from it.
            if (_updateTimer == null)
            {
                _updateTimer = new ThrottleTimer(100) { Action = UpdateLayerVisibilities };
            }
            _updateTimer.Invoke();
        }