📄 legendboxelement2.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.Combo
Chart.Width = Unit.Parse(600)
Chart.Height = Unit.Parse(350)
Chart.TempDirectory = "temp"
Chart.Debug = True
Chart.Title = "Sales for 2002"
Chart.DefaultSeries.DefaultElement.ShowValue = True
'This sample will demonstrate how to use the legend box to describe the 'other' element of a limited series.
'Setup the data engine
Dim de As New DataEngine("../../database/chartsample.mdb")
de.StartDate = New System.DateTime(2002, 1, 1, 0, 0, 0)
de.EndDate = New System.DateTime(2002, 12, 31, 23, 59, 59)
de.SqlStatement = "SELECT Name,Sum(Quantity) FROM Orders WHERE OrderDate >= #STARTDATE# AND OrderDate <= #ENDDATE# GROUP BY Orders.Name ORDER BY Sum(Quantity) DESC"
' Limit to 5 elements
de.Limit = "5"
' Add the series the the chart
Chart.SeriesCollection.Add(de.GetSeries())
' Update the dataEngine to get only the excluded part.
de.LimitMode = LimitMode.ExcludeTop
de.ShowOther = False
' Get the new series.
Dim mySC2 As SeriesCollection = de.GetSeries()
' Create a legend box to hold the new series
Dim lb As New LegendBox()
lb.Template = "%Value %Name"
lb.HeaderEntry.Visible = True
lb.HeaderEntry.Value = "Other"
lb.Position = New Point(427, 105)
lb.HeaderEntry.Name = ""
' Specify the data source.
lb.DataSource = DataSource.FromSeriesCollection(mySC2, DataSourceType.Element)
' Add the new legend to the chart.
Chart.ExtraLegendBoxes.Add(lb)
' So the column differences are more apparent, smart scale break will be activated.
Chart.YAxis.SmartScaleBreak = True
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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