📄 iterateelements.aspx
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<%@ Page Language="C#" debug="true" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<script runat="server">
SeriesCollection getRandomData()
{
SeriesCollection SC = new SeriesCollection();
Random myR = new Random();
for(int a = 1; a < 5; a++)
{
Series s = new Series();
s.Name = "Series " + a;
for(int b = 1; b < 5; b++)
{
Element e = new Element();
e.Name = "Element " + b;
e.YValue = myR.Next(50);
s.Elements.Add(e);
}
SC.Add(s);
}
return SC;
}
void Page_Load(Object sender,EventArgs e)
{
Chart.Type = ChartType.Combo;//Horizontal;
Chart.Width = 600;
Chart.Height = 350;
Chart.TempDirectory = "temp";
// This sample demonstrates how you can iterate through elements and change their color
// based on the data.
// We'll set the default type to line so it can be viewed better.
Chart.DefaultSeries.Type = SeriesType.Line;
// We'll also make the markers bigger so they can be seen better.
Chart.DefaultSeries.DefaultElement.Marker.Size = 13;
// 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();
// The elements values are between 0 and 50 so we'll make any elements outside on 10 to 40 red and within green.
foreach(Series s in sc)
foreach(Element el in s.Elements)
if(el.YValue < 10 || el.YValue > 40)
el.Color = Color.Red;
else
el.Color = Color.Green;
// Add the random data.
Chart.SeriesCollection.Add(sc);
}
</script>
<HTML><HEAD><TITLE>Interate Elements</TITLE></HEAD>
<BODY>
<DIV align=center>
<dotnet:Chart id="Chart" runat="server"/>
</DIV>
</BODY>
</BODY>
</HTML>⌨️ 快捷键说明
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