Steema Central

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 public Form1()
        {
            InitializeComponent();
            InitializeChart();
        }
        double Xmin,Xmax;
        int defaultWidth;
        Steema.TeeChart.Styles.Candle candle;
        private void InitializeChart()
        {
            candle = new Steema.TeeChart.Styles.Candle(tChart1.Chart);
            candle.FillSampleValues(3);
        
            tChart1.Draw();
            Xmin = tChart1.Axes.Bottom.Minimum;
            Xmax = tChart1.Axes.Bottom.Maximum;
            defaultWidth = candle.CandleWidth;
            tChart1.Zoomed +=new EventHandler(tChart1_Zoomed);
            tChart1.UndoneZoom +=new EventHandler(tChart1_UndoneZoom);
        }
        void tChart1_Zoomed(object sender, EventArgs e)
        {
            double diff = (Xmax - Xmin) / (tChart1.Axes.Bottom.Maximum - tChart1.Axes.Bottom.Minimum);
            tChart1.Header.Text = diff.ToString();

            candle.CandleWidth = (int)(defaultWidth * diff);
        }
   
        void tChart1_UndoneZoom(object sender, EventArgs e)
        {
            candle.CandleWidth = defaultWidth;
        }