防止用户选择自动缩放

Question

我有一个Winforms应用程序的代码

private void FillChart1() {
            int blockSize = 100;

            // generates random data (i.e. 30 * blockSize random numbers)
            Random rand = new Random();
            var valuesArray = output;

            // clear the chart
            chart1.Series.Clear();

            // fill the chart
            var series = chart1.Series.Add("My Series");
            series.ChartType = SeriesChartType.Line;
            series.XValueType = ChartValueType.Int32;
            for (int i = 0; i < valuesArray.Length; i++)
                series.Points.AddXY(i, valuesArray[i]);
            chartArea1 = chart1.ChartAreas[series.ChartArea];

            // set view range to [0,max]
            chartArea1.AxisX.Minimum = 0;
            chartArea1.AxisX.Maximum = valuesArray.Length;

            // enable autoscroll
            chartArea1.CursorX.AutoScroll = true;

            // let's zoom to [0,blockSize] (e.g. [0,100])
            chartArea1.AxisX.ScaleView.Zoomable = true;
            chartArea1.AxisX.ScaleView.SizeType = DateTimeIntervalType.Number;
            int position = 0;
            int size = blockSize;
            chartArea1.AxisX.ScaleView.Zoom(position, size);

            // disable zoom-reset button (only scrollbar's arrows are available)
            chartArea1.AxisX.ScrollBar.ButtonStyle = ScrollBarButtonStyles.SmallScroll;

            // set scrollbar small change to blockSize (e.g. 100)
            chartArea1.AxisX.ScaleView.SmallScrollSize = blockSize;

            chartArea1.CursorX.IsUserEnabled = true;
            chartArea1.CursorX.IsUserSelectionEnabled = true;




            chart1.MouseWheel += chart1_MouseWheel;// for zoom-in, zoom-out
        }

当我拖动鼠标时，图像中的过程就会发生。 当我释放它时，它会自动缩放到所选区域。 我如何获得它以便仅选择它，而没有缩放行为？