ASP进阶：用ASP制作统计饼图、柱状图等

 <%@ language=vbscript %>
<%
  '利用数据库中的数据生成线图。
  '根据4个不同的值分别生成4条线。
  '在X轴上显示星期的名称。

  Response.Expires = 0
  Response.Buffer = true
  Response.Clear

  '利用下面的语句创建chart对象，版本不同会有所差异。
  'Set Chart = Server.CreateObject("csDrawGraph.Draw")
  Set Chart = Server.CreateObject("csDrawGraphTrial.Draw")

  ConnectionString = "PROVIDER=MICROSOFT.JET.OLEDB.4.0;DATA SOURCE=" & _
    Server.Mappath("data.mdb")
  Set DBConn = Server.CreateObject("ADODB.Connection")
  DBConn.Open ConnectionString
  Set RS = Server.CreateObject("ADODB.Recordset")
  SQL = "SELECT * FROM Table1 ORDER BY Day"
  RS.Open SQL, DBConn

    While Not RS.Eof
      Chart.AddPoint CInt(RS("Day")), CInt(RS("Red")), "ff0000", "Red"
      Chart.AddPoint CInt(RS("Day")), CInt(RS("Blue")), "0000ff", "Blue"
      Chart.AddPoint CInt(RS("Day")), CInt(RS("Green")), "00ff00", "Green"
      Chart.AddPoint CInt(RS("Day")), CInt(RS("Yellow")), "ffff00", "Yellow"
      Chart.AddXValue CInt(RS("Day")), RS("DayName")
      RS.MoveNext
    Wend

  '关闭数据库连接
  RS.Close
  DBConn.Close

  '下面设置组件属性
  'X轴坐标从1开始而不是0。(XOffset = 1)

  Chart.Title = "All the combined results"
  Chart.TitleX = 100
  Chart.YAxisText = "Total for each day"
  Chart.OriginY = 220
  Chart.XOffset = 1
  Chart.XTop = 7
  Chart.XGrad = 1
  Chart.UseXAxisLabels = true
  Chart.LineWidth = 2
  Chart.PointSize = 3
  Chart.PointStyle = 1

  '最后图片以GIF格式发送到浏览器
  Response.ContentType = "image/gif"
  Response.BinaryWrite Chart.GIFLine
  Response.End
%>