Steema Central

Code: Select all

private Steema.TeeChart.Tools.NearestPoint tNearestPoint;
private EventHandler _steemaTeeChartToolsNearestPointEventHandler = null;
_steemaTeeChartToolsNearestPointEventHandler = new EventHandler(tNearestPoint_Change);

tNearestPoint.Change += _steemaTeeChartToolsNearestPointEventHandler;

private void tNearestPoint_Change(object sender, EventArgs e)
{
    try
    {
        if (NearestPointChangeDelegate != null)
        {
            if (tNearestPoint.Point != -1)
            {
                NearestPointChangeEventArgs nearestPointChangeEventArgs = new NearestPointChangeEventArgs(
                    tNearestPoint.Series.XValues[tNearestPoint.Point],
                    tNearestPoint.Series.YValues[tNearestPoint.Point]);

                NearestPointChangeDelegate(this, nearestPointChangeEventArgs);
            }
            else
            {
                Point cursorPosition = ((System.Windows.Forms.Control)Chart).PointToClient(System.Windows.Forms.Cursor.Position);

                int point = tNearestPoint.GetNearestPoint(cursorPosition); //Also always = -1;
            }
        }
    }
    catch (Exception ex)
    {
        Ellab.Debug.GlobalDebug.debugForm.WriteText(ex);
    }
}

Code: Select all

  Steema.TeeChart.Styles.Points point,point1;
        Steema.TeeChart.Tools.NearestPoint nearest1;
        private void InitializeChart()
        {
            point = new Steema.TeeChart.Styles.Points(tChart1.Chart);
            point1 = new Steema.TeeChart.Styles.Points(tChart1.Chart);
            nearest1 = new Steema.TeeChart.Tools.NearestPoint(tChart1.Chart);
            point.FillSampleValues();
            nearest1.Series = this.point;
            point1.FillSampleValues();
            nearest1.Change += new EventHandler(nearest1_Change);

        }

        void nearest1_Change(object sender, EventArgs e)
        {
            if (nearest1.Point != -1)
            {
                this.Text = nearest1.Point.ToString();
            }
        }