Steema Central

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        Steema.TeeChart.TChart tChart1;
        public Form1()
        {
            InitializeComponent();
            tChart1 = new Steema.TeeChart.TChart();
            this.Controls.Add(tChart1);
            tChart1.Dock = DockStyle.Fill;
            InitializeChart();
        }

        Steema.TeeChart.Styles.Line series1;
        Steema.TeeChart.Tools.RectangleTool tool1;
        private void InitializeChart()
        {
            tChart1.Aspect.View3D = false;
            series1 = new Steema.TeeChart.Styles.Line(tChart1.Chart);
            Random rnd = new Random();
            series1.Add(1000);
            for (int i = 1; i < 25; i++)
            {
                series1.Add(series1.YValues.Value[i - 1] + rnd.Next(10));
            }
            tool1 = new Steema.TeeChart.Tools.RectangleTool(tChart1.Chart);
           
            tChart1.AfterDraw += new Steema.TeeChart.PaintChartEventHandler(tChart1_AfterDraw);
            tChart1.Zoomed += new EventHandler(tChart1_Zoomed);
            tChart1.Scroll += new EventHandler(tChart1_Scroll);
            tChart1.UndoneZoom += new EventHandler(tChart1_UndoneZoom);
            tChart1.Draw();
        }

        void tChart1_UndoneZoom(object sender, EventArgs e)
        {
            tChart1.Draw();
        }

        void tChart1_Scroll(object sender, EventArgs e)
        {
            tChart1.Draw();
        }

        void tChart1_AfterDraw(object sender, Steema.TeeChart.Drawing.Graphics3D g)
        {
            tool1.Left = tChart1.Axes.Bottom.CalcXPosValue(10);
            tool1.Top = tChart1.Axes.Left.CalcYPosValue(1070);
        }

        void tChart1_Zoomed(object sender, EventArgs e)
        {  
            tChart1.Draw();

        }