ArcGISWindowsPhoneSDK.WebMapCharts.MyInfoWindow_MouseLeftButtonDown C# (CSharp) Метод

        private void MyInfoWindow_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
        {
            // Display tooltip of the clicked piece of chart

            // reset previous result
            if (highlightedChartPiece != null)
                Unhighlight(highlightedChartPiece);

            // get clicked element having tooltip
            var point = e.GetPosition(null);
            var element = VisualTreeHelper.FindElementsInHostCoordinates(point, popupContent).FirstOrDefault(elt => elt.GetValue(ToolTipService.ToolTipProperty) != null);

            if (element == null)
            {
                // Add a tolerance since the piece of chart can be small
                const double tolerance = 40;
                Rect rect = new Rect(point.X - tolerance / 2, point.Y - tolerance / 2, tolerance, tolerance);
                element = VisualTreeHelper.FindElementsInHostCoordinates(rect, popupContent).FirstOrDefault(elt => elt.GetValue(ToolTipService.ToolTipProperty) != null);
            }

            if (element != null)
            {
                // Display tooltip in chartDetails
                chartDetailsContent.Content = element.GetValue(ToolTipService.ToolTipProperty);
                Highlight(element);
            }
        }