📄 operatorcalculations.aspx
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<%@ Import Namespace="System.Drawing" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Page Language="C#" debug="true" Description="dotnetCHARTING Component" %>
<script runat="server">
SeriesCollection getRandomData()
{
SeriesCollection SC = new SeriesCollection();
Random myR = new Random();
for(int a = 0; a < 1; a++)
{
Series s = new Series();
s.Name = "GNP";
for(int b = 1; b < 5; b++)
{
Element e = new Element();
e.Name = "Country " + b;
// Load a very large value.
e.YValue = myR.Next(50000000)+myR.Next(50000000)+myR.Next(50000000)+myR.Next(50000000);
e.YValue += myR.Next(50000000)+myR.Next(50000000)+myR.Next(50000000)+myR.Next(50000000);
e.YValue += myR.Next(500000000)+myR.Next(50000000)+myR.Next(50000000)+myR.Next(500000000);
e.YValue += myR.Next(500000000)+myR.Next(50000000)+myR.Next(50000000)+myR.Next(500000000);
s.Elements.Add(e);
}
SC.Add(s);
}
return SC;
}
void Page_Load(Object sender,EventArgs e)
{
Chart.Type = ChartType.Combo;//Horizontal;
Chart.TempDirectory = "temp";
Chart.YAxis.NumberPrecision =2;
Chart.Debug=true;
// This sample demonstrates how operators can be used on series to manipulate chart data.
// Scenario:
// We are charting dollar amounts some nation's GNP. These values are very large so we will scale
// the data down and show it in billions.
// First we get our data, if you would like to get the data from a database you need to use
// the data engine. See sample: features/dataEngine.aspx.
SeriesCollection sc = getRandomData();
// We can scale the data by multiplying the series.
for(int i = 0; i < sc.Count; i ++)
sc[i] = sc[i]*.000000001;
// Now we label the axis apropriately.
Chart.YAxis.Label.Text = "(GNP in Billions)";
// Add the random data.
Chart.SeriesCollection.Add(sc);
}
</script>
<HTML>
<HEAD>
<TITLE>Operator Calculations</TITLE>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px" />
</DIV>
</BODY>
</HTML>⌨️ 快捷键说明
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