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Align Legend To Chart

Demonstrates how the legend box can be aligned to the chart area dynamically.

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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" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>.netCHARTING Sample</title>
<script runat="server">

void Page_Load(Object sender,EventArgs e)
{

Chart.Type = ChartType.Combo;//Horizontal;
Chart.Size = "600x350";
Chart.TempDirectory = "temp";
Chart.Debug = true;
//Chart.Title = ".netCHARTING Sample";

// Demonstrates how the legend box can be aligned to the chart area dynamically.

// First we setup the data.

// *DYNAMIC DATA NOTE*
// This sample uses random data to populate the chart. To populate
// a chart with database data see the following resources:
// - Classic samples folder
// - Help File > Data Tutorials
// - Sample: features/DataEngine.aspx
SeriesCollection mySC = getRandomData();
// Add the random data.
Chart.SeriesCollection.Add(mySC);

// These two lines will force the chart to generate so the coordinates can be determined.
// We will also get a graphics object we can draw on before we save the final image.
Bitmap bmp = Chart.GetChartBitmap();

Rectangle r = Chart.ChartArea.GetRectangle();
Chart.LegendBox.Position = new Point(r.Left+10,r.Top+10);
Chart.LegendBox.Background.Color = Color.White;
Chart.LegendBox.Line.Color = Color.LightGray;
bmp = Chart.GetChartBitmap();

// Draw an orange outline around the boxes we get coordinates for.

// Save the final image.
Chart.FileManager.SaveImage(bmp);

}

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.ToString();
for(int b = 1; b < 5; b++)
{
Element e = new Element();
e.Name = "Element " + b.ToString();
e.YValue = myR.Next(950);
s.Elements.Add(e);
}
SC.Add(s);
}

return SC;
}
</script>
</head>
<body>
<div style="text-align:center">
<dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px">
</dotnet:Chart>
</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" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>.netCHARTING Sample</title>
<script runat="server">

Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

Chart.Type = ChartType.Combo 'Horizontal;
Chart.Size = "600x350"
Chart.TempDirectory = "temp"
Chart.Debug = True
'Chart.Title = ".netCHARTING Sample";

' Demonstrates how the legend box can be aligned to the chart area dynamically.

' First we setup the data.

' *DYNAMIC DATA NOTE*
' This sample uses random data to populate the chart. To populate
' a chart with database data see the following resources:
' - Classic samples folder
' - Help File > Data Tutorials
' - Sample: features/DataEngine.aspx
Dim mySC As SeriesCollection = getRandomData()
' Add the random data.
Chart.SeriesCollection.Add(mySC)

' These two lines will force the chart to generate so the coordinates can be determined.
' We will also get a graphics object we can draw on before we save the final image.
Dim bmp As Bitmap = Chart.GetChartBitmap()

Dim r As Rectangle = Chart.ChartArea.GetRectangle()
Chart.LegendBox.Position = New Point(r.Left+10,r.Top+10)
Chart.LegendBox.Background.Color = Color.White
Chart.LegendBox.Line.Color = Color.LightGray
bmp = Chart.GetChartBitmap()

' Draw an orange outline around the boxes we get coordinates for.

' Save the final image.
Chart.FileManager.SaveImage(bmp)

End Sub

Function getRandomData() As SeriesCollection
Dim SC As SeriesCollection = New SeriesCollection()
Dim myR As Random = New Random()
For a As Integer = 1 To 4
Dim s As Series = New Series()
s.Name = "Series " & a.ToString()
For b As Integer = 1 To 4
Dim e As Element = New Element()
e.Name = "Element " & b.ToString()
e.YValue = myR.Next(950)
s.Elements.Add(e)
Next b
SC.Add(s)
Next a

Return SC
End Function
</script>
</head>
<body>
<div style="text-align:center">
<dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px">
</dotnet:Chart>
</div>
</body>
</html>

Sample FilenameAlignLegendToChart.aspx
Version3.4
Uses DatabaseNo

JS Charting

Gallery

Align Legend To Chart