Steema Central

Code: Select all

            DataSet ds = new DataSet();
            DataTable dt = new DataTable();
            dt.TableName = "myTable";
            dt.Columns.Add(new DataColumn("X", System.Type.GetType("System.Double")));
            dt.Columns.Add(new DataColumn("Y", System.Type.GetType("System.Double")));
            dt.Rows.Add(new Object[] { 1, 1 });
            dt.Rows.Add(new Object[] { 2, 2 });
            dt.Rows.Add(new Object[] { 3, 3 });
            dt.Rows.Add(new Object[] { 4, 4 });
            ds.Tables.Add(dt);

            Steema.TeeChart.Styles.Points _seriesPoints = new Steema.TeeChart.Styles.Points();
            _seriesPoints.Pointer.VertSize = 2;
            _seriesPoints.Pointer.HorizSize = 2;
            _seriesPoints.Pointer.Style = Steema.TeeChart.Styles.PointerStyles.Rectangle;
            _seriesPoints.DataSource = ds.Tables["myTable"];
            _seriesPoints.XValues.DataMember = "X";
            _seriesPoints.YValues.DataMember = "Y";
            _seriesPoints.Visible = true;

            tChart1.Series.Add(_seriesPoints);

            Random _rnd = new Random();

            for (int i = 0; i < 40; i++) {

                ds.Tables["myTable"].Rows[i % 4]["Y"] = _rnd.Next(5);
                _seriesPoints.CheckDataSource();

// I think, this must be code or call event changing vert and horiz size rectangle of (i % 4) point

                System.Threading.Thread.Sleep(500);

            }

Code: Select all

   public Form1()
        {
            InitializeComponent();
            InitializeChart();
          //  InitializeButton();
        }
        Steema.TeeChart.Styles.Points Series1;
        Timer timer1;
        private void InitializeChart()
        {   //Timer
            timer1 = new Timer();
            timer1.Tick += new EventHandler(timer1_Tick);

            //Chart
            tChart1.Aspect.View3D = false;

            //Series
            Series1 = new Points(tChart1.Chart);
            Series1.DataSource = GetDataSet();
            Series1.XValues.DataMember = "X";
            Series1.YValues.DataMember = "Y";
            //InitializeSize
            Series1.Pointer.VertSize = 2;
            Series1.Pointer.HorizSize = 2;
            timer1.Start();
            timer1.Interval = 500;
            tChart1.AfterDraw += new PaintChartEventHandler(tChart1_AfterDraw);
        }
        void tChart1_AfterDraw(object sender, Graphics3D g)
        {
            Series1.Pointer.HorizSize = (int)Series1.XValues.Maximum;
            Series1.Pointer.VertSize = (int)Series1.YValues.Maximum;   
        }

        void timer1_Tick(object sender, EventArgs e)
        {
            Random rnd = new Random();
            DataTable dt = GetDataSet().Tables["DataTable"];
            for (int i = 0; i < 40; i++)
            {
              dt.Rows[i % 4]["Y"] = rnd.Next(5);             
            }
            Series1.DataSource = dt;
            Series1.CheckDataSource();
        }
        private DataSet GetDataSet()
        {
            DataSet TeeDataSet = new DataSet();
            DataTable TeeDataTable = new DataTable("DataTable");
            DataColumn xval = new DataColumn("X", typeof(double));
            DataColumn yval = new DataColumn("Y", typeof(double));

            TeeDataTable.Columns.Add(xval);
            TeeDataTable.Columns.Add(yval);
 
           TeeDataTable.Rows.Add(new Object[] { 1, 1 });
           TeeDataTable.Rows.Add(new Object[] { 2, 2 });
           TeeDataTable.Rows.Add(new Object[] { 3, 3 });
           TeeDataTable.Rows.Add(new Object[] { 4, 4 });

            TeeDataSet.Tables.Add(TeeDataTable);
            return TeeDataSet;

        }

Code: Select all

  public Form1()
        {
            InitializeComponent();
            InitializeChart();
        }
        private void InitializeChart()
        {
            tChart1.Aspect.View3D = false;
            Points point = new Points(tChart1.Chart);
            point.FillSampleValues();
            point.GetPointerStyle += point_GetPointerStyle;

        }
        void point_GetPointerStyle(CustomPoint series, GetPointerStyleEventArgs e)
        {
            if (e.ValueIndex == 3)
            {
                series.Pointer.HorizSize = 10;
                series.Pointer.VertSize = 10;
                e.Color = Color.Red;
            }
            else
            {
                series.Pointer.HorizSize = 4;

            }
        }