Create chart in code behind and display it

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  hi,

  this is my code:

  double[] yValues = { 15, 60, 12, 13 };
  string[] xValues = { "September", "October", "November", "December" };
  
  
  // Create a pie chart
   Chart chart = new Chart();
  
  
  // Build a pie series
  Series series = new Series("Default");
  series.ChartType = SeriesChartType.Pie;
  series["PieLabelStyle"] = "Disabled";
  chart.Series.Add(series);
  
  
  // Define the chart area
  ChartArea chartArea = new ChartArea();
  ChartArea3DStyle areaStyle = new ChartArea3DStyle(chartArea);
  areaStyle.Rotation = 0;
  
  
  Axis yAxis = new Axis(chartArea, AxisName.Y);
  Axis xAxis = new Axis(chartArea, AxisName.X);
  
  
  // Bind the data to the chart
                  chart.Series["Default"].Points.DataBindXY(xValues, yValues);
  
  
  // Save the chart as a 300 x 200 image
  chart.Width = new System.Web.UI.WebControls.Unit(300, System.Web.UI.WebControls.UnitType.Pixel);
  chart.Height = new System.Web.UI.WebControls.Unit(200, System.Web.UI.WebControls.UnitType.Pixel);
   System.IO.MemoryStream ms = new System.IO.MemoryStream();
  chart.SaveImage(System.IO.Stream.Null);
  chart.SaveImage(ms, ChartImageFormat.Png);
  Session["GraficoClientePorTipo"] = ms.ToArray();
  
  divInferior.Controls.Add(new LiteralControl("<div>" + chart.GetHtmlImageMap("GraficoClientePorTipo") + "</div>"));

  
  

  my problem is the chart doens't appear in my div and I can't put <asp:chart> in the side page.aspx.

  thanks for help

  • Moved by Kristin Xie Tuesday, April 28, 2015 6:21 AM

  Monday, April 27, 2015 4:37 PM