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Label Image

Demonstrates using an image within a label.

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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 an image within a label.

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

Chart.Type = ChartType.Combo;
Chart.Size = "550x500";
//Chart.Title = ".netCHARTING Sample";
Chart.DefaultSeries.Type = SeriesType.Bar;
Chart.DefaultElement.ShowValue = true;
//Chart.LegendBox.Visible = false;
Chart.LegendBox.Template = "%Name%Chart%Value";
Chart.LegendBox.Orientation = dotnetCHARTING.Orientation.Bottom;
// *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();

string path = "";
for (int i = 0; i < mySC.Count; i++)
{
mySC[i].DefaultElement.Color = Chart.Palette[i];
path = getSmallChart(mySC[i]);
mySC[i].LegendEntry.CustomAttributes.Add("Chart", "<img:" + path + ">"); ;
}

// 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 < 3; 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();
}

string getSmallChart(Series s)
{
Chart c = new Chart();
c.SmallChartMode = true;
c.ChartArea.ClearColors();
c.DefaultElement.Marker.Size = 2;
c.Size = "100,30";
c.Background.Color = Color.Transparent;
c.DefaultAxis.Line.Color = Color.Empty;
c.DefaultSeries.Type = SeriesType.Line;
c.SeriesCollection.Add(s);
c.TempDirectory = "temp";
c.DefaultAxis.ClearValues = true;
return c.FileManager.SaveImage();
}

</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 an image within a label.

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

Chart.Type = ChartType.Combo
Chart.Size = "550x500"
'Chart.Title = ".netCHARTING Sample";
Chart.DefaultSeries.Type = SeriesType.Bar
Chart.DefaultElement.ShowValue = True
'Chart.LegendBox.Visible = false;
Chart.LegendBox.Template = "%Name%Chart%Value"
Chart.LegendBox.Orientation = dotnetCHARTING.Orientation.Bottom
' *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()

Dim path As String = ""
For i As Integer = 0 To mySC.Count - 1
mySC(i).DefaultElement.Color = Chart.Palette(i)
path = getSmallChart(mySC(i))
mySC(i).LegendEntry.CustomAttributes.Add("Chart", "<img:" & path & ">")

Next i

' 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 2
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

Function getSmallChart(ByVal s As Series) As String
Dim c As Chart = New Chart()
c.SmallChartMode = True
c.ChartArea.ClearColors()
c.DefaultElement.Marker.Size = 2
c.Size = "100,30"
c.Background.Color = Color.Transparent
c.DefaultAxis.Line.Color = Color.Empty
c.DefaultSeries.Type = SeriesType.Line
c.SeriesCollection.Add(s)
c.TempDirectory = "temp"
c.DefaultAxis.ClearValues = True
Return c.FileManager.SaveImage()
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 FilenameLabelImage.aspx
Version5.0
Uses DatabaseNo

JS Charting

Gallery

Label Image