📄 multicolorarea.aspx
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<%@ Page Language="VB" debug="true" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<HTML><HEAD><TITLE>Multi Color Area</TITLE>
<script runat="server">
Sub Page_Load(sender As [Object], e As EventArgs)
Chart.Type = ChartType.Combo 'Horizontal;
Chart.Width = Unit.Parse(600)
Chart.Height = Unit.Parse(350)
Chart.Use3D = True
Chart.TempDirectory = "temp"
' This sample wil demonstrate how you can color an element in each series so you can do without the x axis.
' First we get our data, if you would like to get the data from a database you need to use
' the data engine. See sample: features/dataEngine.aspx.
Dim mySeries As Series = getRandomData()
' By setting a palette to this series it will instruct the chart engine to color each of it's elements
' and place each element into the legend and remove the series.
mySeries.PaletteName = Palette.Three
' We can also mark any element with any color.
mySeries.Elements(3).Color = Color.Red
mySeries.Elements(3).Name = "Red One"
' Set the default series type to area line.
Chart.DefaultSeries.Type = SeriesType.AreaLine
' A bit transparency almost always makes the chart look better so we add some here.
Chart.DefaultSeries.DefaultElement.Transparency = 25
' Add the random data.
Chart.SeriesCollection.Add(mySeries)
End Sub 'Page_Load
Function getRandomData() As Series
Dim myR As New Random()
Dim s As New Series()
s.Name = "Clicks"
Dim b As Integer
For b = 1 To 7
Dim e As New Element()
e.Name = "Element " + b.ToString()
e.YValue = myR.Next(50)
s.Elements.Add(e)
Next b
Return s
End Function 'getRandomData
</script>
</HEAD>
<BODY>
<DIV align=center>
<dotnet:Chart id="Chart" runat="server"/>
</DIV>
</BODY>
</BODY>
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