📄 gaugebackground.aspx
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<%@ Page Language="VB" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<HTML>
<HEAD>
<TITLE>.netCHARTING Sample</TITLE>
<script runat="server">
Sub Page_Load(sender As [Object], e As EventArgs)
Chart.Type = ChartType.Gauges
Chart.Size = "600X400"
Chart.TempDirectory = "temp"
Chart.Debug = True
Chart.ChartArea.ClearColors()
Chart.LegendBox.Position = LegendBoxPosition.None
' This sample will demonstrate how Gauge backgrounds can be used.
' First create a series, if you would like to get the data from a database you need to use
' the data engine. See sample: features/dataEngine.aspx. Or the dataEngine tutorial in the help file.
Dim s As New Series()
' Turn off gauge clipping so the gauge is a complete circle to match our image.
Chart.ClipGauges = False
' Set the background for the series.
s.Background = New Background("gauge.gif")
' Add an element
s.Elements.Add(New Element("", 55))
' Update the main y axis settings to match the ticks in our image.
Dim a As Axis = Chart.YAxis
a.RangeAngle = 242
a.Maximum = 150
a.Minimum = 10
a.Interval = 10
' Make the axis invisible.
a.Clear()
' Add the random data.
Chart.SeriesCollection.Add(s)
End Sub 'Page_Load
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px">
</dotnet:Chart>
</DIV>
</BODY>
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