📄 seriestrimming.aspx
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<%@ Page Language="C#" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<HTML>
<HEAD>
<TITLE>.netCHARTING Sample</TITLE>
<script runat="server">
void Page_Load(Object sender,EventArgs e)
{
Chart.Type = ChartType.ComboSideBySide;//Horizontal;
Chart.Width = 600;
Chart.Height = 350;
Chart.TempDirectory = "temp";
Chart.Debug = true;
Chart.Title = "Series.Trim() Method";
Annotation a = new Annotation();
a.Position = new Point(300,70);
a.ClearColors();
a.Label.Text = "Series 2 is trimmed to only leave elements with y values between 15 and 30";
Chart.Annotations.Add(a);
// This sample will demonstrate how to trim elements from a series.
// 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. Or the dataEngine tutorial in the help file.
SeriesCollection mySC = getRandomData();
// mySC is a series collection that contains two series
// The first series will be shown in it's entirety.
// The second is trimmed to only leave elements with y values between 20 and 30
mySC[1].Trim(15,30,ElementValue.YValue);
// Add a marker to the y axis to show the range of vales not trimmed from the second series.
AxisMarker M=new AxisMarker();
M.LegendEntry.Name = "Active zone";
M.Background = new Background(Color.FromArgb(100,Color.Red));
M.ValueHigh = 30;
M.ValueLow = 15;
Chart.YAxis.Markers.Add(M);
// Add the random data.
Chart.SeriesCollection.Add(mySC);
}
SeriesCollection getRandomData()
{
SeriesCollection SC = new SeriesCollection();
Random myR = new Random();
for(int a = 1; a < 3; a++)
{
Series s = new Series();
s.Name = "Series " + a;
for(int b = 1; b < 51; b++)
{
Element e = new Element();
e.Name = "Element " + b;
//e.YValue = -25 + myR.Next(50);
e.YValue = myR.Next(50);
s.Elements.Add(e);
}
SC.Add(s);
}
// Set Different Colors for our Series
SC[0].DefaultElement.Color = Color.FromArgb(49,255,49);
SC[1].DefaultElement.Color = Color.FromArgb(255,255,0);
return SC;
}
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px">
</dotnet:Chart>
</DIV>
</BODY>
</HTML>
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