public void plotdata()
        {
            var canvas = new Bunifu.DataViz.Canvas();
            //add datapoints of the spline chart
            var spline1_datapoints = new Bunifu.DataViz.DataPoint(Bunifu.DataViz.BunifuDataViz._type.Bunifu_spline);
            var spline2_datapoints = new Bunifu.DataViz.DataPoint(Bunifu.DataViz.BunifuDataViz._type.Bunifu_spline);

            //datapoints for the first graph which is a spline line chart
                       spline1_datapoints.addLabely("Dec 13", "10");
                       spline1_datapoints.addLabely("Dec 14", "38");
                       spline1_datapoints.addLabely("Dec 15", "35");
                       spline1_datapoints.addLabely("Dec 16", "40");
                       spline1_datapoints.addLabely("Dec 17", "50");
                       spline1_datapoints.addLabely("Dec 18", "25");
                       spline1_datapoints.addLabely("Dec 19", "45");

            //datapoints fr the second chart (spline chart)
                        spline2_datapoints.addLabely("Dec 13", "40");
                        spline2_datapoints.addLabely("Dec 14", "50");
                        spline2_datapoints.addLabely("Dec 15", "45");
                        spline2_datapoints.addLabely("Dec 16", "24");
                        spline2_datapoints.addLabely("Dec 17", "40");
                        spline2_datapoints.addLabely("Dec 18", "55");
                        spline2_datapoints.addLabely("Dec 19", "40");

            //add the datapoints  to the canvas
            canvas.addData(spline1_datapoints);
            canvas.addData(spline2_datapoints);
            //render the chart
            bunifuDataViz1.Render(canvas);
          //we need to add a timer
        private void timer1_Tick(object sender, EventArgs e)
        {
            plotdata();
            timer1.Stop();
        }