JS Background Styling
Demonstrates using complex background fills on the chart.
<%@ Page Language="C#" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dnc" 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 complex background fills on the chart.
Chart.Size = "600x350";
//Chart.Title = ".netCHARTING Sample";
Chart.TempDirectory = "temp";
Chart.Debug = false;
// Enable JSCharting
Chart.JS.Enabled = true;
// Specify solid color chart background.
Chart.Background = new Background(Color.Lavender);//DeepSkyBlue);
// Multi-Color gradient background for the chart area.
Chart.ChartArea.Background= new Background(new Color[] { Color.FromArgb(226, 238, 255), Color.FromArgb(192, 219, 255), Color.FromArgb(126, 238, 255) }, new float[] { 0, .4f, 1 }, 90);
Annotation an = new Annotation("Gradient Fill");
an.Position = new Point(140, 50);
an.Size = new Size(100, 70);
an.Background = new Background(new Color[] { Color.FromArgb(226, 238, 255), Color.FromArgb(192, 219, 255), Color.FromArgb(126, 238, 255) }, new float[] { 0, .4f, 1 }, 45);
Chart.Annotations.Add(an);
//Chart.ChartArea.Background = new Background(new Color[] { Color.FromArgb(226, 238, 255), Color.FromArgb(192, 219, 255), Color.FromArgb(226, 238, 255) }, new float[] { 0, .4f, 1 }, 90);
// *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();
for (int a = 1; a < 5; a++)
{
Series s = new Series("Series " + a.ToString());
for (int 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(ConfigurationManager.AppSettings["DNCConnectionString"]);
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">
<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" %>
<%@ Import Namespace="dotnetCHARTING.Mapping" %>
<script runat="server">
Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
' Demonstrates using complex background fills on the chart.
Chart.Size = "600x350"
'Chart.Title = ".netCHARTING Sample";
Chart.TempDirectory = "temp"
Chart.Debug = False
' Enable JSCharting
Chart.JS.Enabled = True
' Specify solid color chart background.
Chart.Background = New Background(Color.Lavender) 'DeepSkyBlue);
' Multi-Color gradient background for the chart area.
Chart.ChartArea.Background= New Background(New Color() { Color.FromArgb(226, 238, 255), Color.FromArgb(192, 219, 255), Color.FromArgb(126, 238, 255) }, New Single() { 0,.4f, 1 }, 90)
Dim an As Annotation = New Annotation("Gradient Fill")
an.Position = New Point(140, 50)
an.Size = New Size(100, 70)
an.Background = New Background(New Color() { Color.FromArgb(226, 238, 255), Color.FromArgb(192, 219, 255), Color.FromArgb(126, 238, 255) }, New Single() { 0,.4f, 1 }, 45)
Chart.Annotations.Add(an)
'Chart.ChartArea.Background = new Background(new Color[] { Color.FromArgb(226, 238, 255), Color.FromArgb(192, 219, 255), Color.FromArgb(226, 238, 255) }, new float[] { 0, .4f, 1 }, 90);
' *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()
For a As Integer = 1 To 4
Dim s As Series = New Series("Series " & a.ToString())
For b As Integer = 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(ConfigurationManager.AppSettings("DNCConnectionString"))
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">
<dnc:Chart ID="Chart" runat="server" />
</div>
</body>
</html>
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