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AreaLine Peaks

Demonstrates using multiple area line series to highlight ranges.

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<%@ Page Language="C#" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="dotnetCHARTING.Mapping" %>

<script runat="server">

void Page_Load(Object sender, EventArgs e)
{
// Demonstrates using multiple area line series to highlight ranges.

Chart.TempDirectory = "temp";
Chart.Debug = true;
Chart.Palette = new Color[] { Color.FromArgb(49, 255, 49), Color.FromArgb(255, 99, 49), Color.FromArgb(0, 156, 255) };

Chart.Type = ChartType.Combo;
Chart.Size = "600x350";
//Chart.Title = ".netCHARTING Sample";
Chart.DefaultSeries.Type = SeriesType.Line;
Chart.DefaultSeries.Line.Width = 2;
Chart.LegendBox.Visible = false;
// *DYNAMIC DATA NOTE*
// This sample uses random data to populate the chart. To populate
// a chart with database data see the following resources:
// - Use the getLiveData() method using the dataEngine to query a database.
// - Help File > Getting Started > Data Tutorials
// - DataEngine Class in the help file
// - Sample: features/DataEngine.aspx

SeriesCollection mySC = getRandomData();

Chart.YAxis.Markers.Add(new AxisMarker("", Color.FromArgb(50,Color.Blue), 0,25));

// An areaLine series is made for elements over 25.
Series s2 = new Series();
s2.Type = SeriesType.AreaLine;
s2.DefaultElement.Marker.Visible = false;
foreach (Element el in mySC[0].Elements)
{
if (el.YValue >= 25)
{
Element e1 = new Element();
e1.YValue = el.YValue;
e1.YValueStart = 25;
e1.XValue = el.XValue;
s2.Elements.Add(e1);
}
}

Chart.SeriesCollection.Add(s2);

// An areaLine series is made for elements under 0.
Series s3 = new Series();
s3.Type = SeriesType.AreaLine;
s3.DefaultElement.Marker.Visible = false;
foreach (Element el in mySC[0].Elements)
{
if (el.YValue <= 0)
{
Element e1 = new Element();
e1.YValue = el.YValue;
e1.YValueStart = 0;
e1.XValue = el.XValue;
s3.Elements.Add(e1);
}
}

Chart.SeriesCollection.Add(s3);

// Add the random data.
Chart.SeriesCollection.Add(mySC);

}

SeriesCollection getRandomData()
{
double cur = 50;
Random myR = new Random(2);
SeriesCollection SC = new SeriesCollection();
int a = 0;
int b = 0;
for (a = 1; a < 2; a++)
{
Series s = new Series("Series " + a.ToString());
for (b = 1; b < 20; b++)
{
Element e = new Element();
cur += -25 + myR.Next(50);
e.YValue = cur;
e.XValue = b;
s.Elements.Add(e);
}
s[8].YValue = 25;
s[11].YValue = 0;
SC.Add(s);
}
return SC;
}

SeriesCollection getLiveData()
{
DataEngine de = new DataEngine("ConnectionString goes here");
de.ChartObject = Chart; // Necessary to view any errors the dataEngine may throw.
de.SqlStatement = "SELECT XAxisColumn, YAxisColumn FROM ....";
return de.GetSeries();
}

</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>.netCHARTING Sample</title>
</head>
<body>
<div align="center">
<dotnet:Chart ID="Chart" runat="server" />
</div>
</body>
</html>

<%@ Page Language="vb" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="dotnetCHARTING.Mapping" %>

<script runat="server">

Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
' Demonstrates using multiple area line series to highlight ranges.

Chart.TempDirectory = "temp"
Chart.Debug = True
Chart.Palette = New Color() { Color.FromArgb(49, 255, 49), Color.FromArgb(255, 99, 49), Color.FromArgb(0, 156, 255) }

Chart.Type = ChartType.Combo
Chart.Size = "600x350"
'Chart.Title = ".netCHARTING Sample";
Chart.DefaultSeries.Type = SeriesType.Line
Chart.DefaultSeries.Line.Width = 2
Chart.LegendBox.Visible = False
' *DYNAMIC DATA NOTE*
' This sample uses random data to populate the chart. To populate
' a chart with database data see the following resources:
' - Use the getLiveData() method using the dataEngine to query a database.
' - Help File > Getting Started > Data Tutorials
' - DataEngine Class in the help file
' - Sample: features/DataEngine.aspx

Dim mySC As SeriesCollection = getRandomData()

Chart.YAxis.Markers.Add(New AxisMarker("", Color.FromArgb(50,Color.Blue), 0,25))

' An areaLine series is made for elements over 25.
Dim s2 As Series = New Series()
s2.Type = SeriesType.AreaLine
s2.DefaultElement.Marker.Visible = False
For Each el As Element In mySC(0).Elements
If el.YValue >= 25 Then
Dim e1 As Element = New Element()
e1.YValue = el.YValue
e1.YValueStart = 25
e1.XValue = el.XValue
s2.Elements.Add(e1)
End If
Next el

Chart.SeriesCollection.Add(s2)

' An areaLine series is made for elements under 0.
Dim s3 As Series = New Series()
s3.Type = SeriesType.AreaLine
s3.DefaultElement.Marker.Visible = False
For Each el As Element In mySC(0).Elements
If el.YValue <= 0 Then
Dim e1 As Element = New Element()
e1.YValue = el.YValue
e1.YValueStart = 0
e1.XValue = el.XValue
s3.Elements.Add(e1)
End If
Next el

Chart.SeriesCollection.Add(s3)

' Add the random data.
Chart.SeriesCollection.Add(mySC)

End Sub

Function getRandomData() As SeriesCollection
Dim cur As Double = 50
Dim myR As Random = New Random(2)
Dim SC As SeriesCollection = New SeriesCollection()
Dim a As Integer = 0
Dim b As Integer = 0
For a = 1 To 1
Dim s As Series = New Series("Series " & a.ToString())
For b = 1 To 19
Dim e As Element = New Element()
cur += -25 + myR.Next(50)
e.YValue = cur
e.XValue = b
s.Elements.Add(e)
Next b
s(8).YValue = 25
s(11).YValue = 0
SC.Add(s)
Next a
Return SC
End Function

Function getLiveData() As SeriesCollection
Dim de As DataEngine = New DataEngine("ConnectionString goes here")
de.ChartObject = Chart ' Necessary to view any errors the dataEngine may throw.
de.SqlStatement = "SELECT XAxisColumn, YAxisColumn FROM ...."
Return de.GetSeries()
End Function

</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>.netCHARTING Sample</title>
</head>
<body>
<div align="center">
<dotnet:Chart ID="Chart" runat="server" />
</div>
</body>
</html>

Sample FilenameAreaLinePeaks.aspx
Version5.2
Uses DatabaseNo

JS Charting

Gallery

AreaLine Peaks