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JS Axis Markers

Demonstrates using AxisMarkers drawn on top of the chart data.

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<%@ Page Language="C#" Description="dotnetCHARTING Component" %>

<%@ Register TagPrefix="dnc" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>

<script runat="server">

void Page_Load(Object sender, EventArgs e)
{
// Demonstrates using AxisMarkers drawn on top of the chart data.

Chart.TempDirectory = "temp";
Chart.Debug = false;

Chart.Type = ChartType.Combo;
Chart.Size = "600x350";
//Chart.Title = ".netCHARTING Sample";

// Enable JSCharting
Chart.JS.Enabled = true;

AxisMarker am = new AxisMarker("Axis Marker with BringToFront = true", Color.FromArgb(200,Color.Red), 40, 50);
am.Label.Alignment = StringAlignment.Near;
am.Label.LineAlignment = StringAlignment.Center;
am.LegendEntry.Name = "BringToFront";

am.Label.Font = new Font("Arial", 12);
am.BringToFront = true;

Chart.YAxis.Markers.Add(am);

Chart.YAxis.Markers.Add(new AxisMarker("value: %Value", Color.Green, 35));
Chart.XAxis.Markers.Add(new AxisMarker("Element 3-4", Color.FromArgb(200,Color.Blue), 2, 3));

// *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();

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

SeriesCollection getRandomData()
{
Random myR = new Random(1);
SeriesCollection SC = new SeriesCollection();
int a = 0;
int b = 0;
for (a = 1; a < 5; a++)
{
Series s = new Series("Series " + a.ToString());
for (b = 1; b < 5; b++)
{
Element e = new Element("Element " + b.ToString());
e.YValue = myR.Next(50);
s.Elements.Add(e);
}
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>
<style type="text/css">
div, p
{
font-family: Arial, Helvetica, sans-serif;
font-size: x-small;
}
</style>
<body>
<div align="center">
<dnc:Chart ID="Chart" runat="server" />
</div>
</body>
</html>

<%@ Page Language="vb" Description="dotnetCHARTING Component" %>

<%@ Register TagPrefix="dnc" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>

<script runat="server">

Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
' Demonstrates using AxisMarkers drawn on top of the chart data.

Chart.TempDirectory = "temp"
Chart.Debug = False

Chart.Type = ChartType.Combo
Chart.Size = "600x350"
'Chart.Title = ".netCHARTING Sample";

' Enable JSCharting
Chart.JS.Enabled = True

Dim am As AxisMarker = New AxisMarker("Axis Marker with BringToFront = true", Color.FromArgb(200,Color.Red), 40, 50)
am.Label.Alignment = StringAlignment.Near
am.Label.LineAlignment = StringAlignment.Center
am.LegendEntry.Name = "BringToFront"

am.Label.Font = New Font("Arial", 12)
am.BringToFront = True

Chart.YAxis.Markers.Add(am)

Chart.YAxis.Markers.Add(New AxisMarker("value: %Value", Color.Green, 35))
Chart.XAxis.Markers.Add(New AxisMarker("Element 3-4", Color.FromArgb(200,Color.Blue), 2, 3))

' *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()

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

Function getRandomData() As SeriesCollection
Dim myR As Random = New Random(1)
Dim SC As SeriesCollection = New SeriesCollection()
Dim a As Integer = 0
Dim b As Integer = 0
For a = 1 To 4
Dim s As Series = New Series("Series " & a.ToString())
For b = 1 To 4
Dim e As Element = New Element("Element " & b.ToString())
e.YValue = myR.Next(50)
s.Elements.Add(e)
Next b
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>
<style type="text/css">
div, p
{
font-family: Arial, Helvetica, sans-serif;
font-size: x-small;
}
</style>
<body>
<div align="center">
<dnc:Chart ID="Chart" runat="server" />
</div>
</body>
</html>

Sample FilenameJsAxisMarkers.aspx
Version7.0
Uses DatabaseNo

JS Charting

Gallery

JS Axis Markers