📄 legendboxcustom.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 'Horizontal;
Chart.Width = Unit.Parse(600)
Chart.Height = Unit.Parse(350)
Chart.TempDirectory = "temp"
Chart.Debug = True
' This sample will demonstrates using a custom legend entry with additional custom columns.
' First we create the new box.
Dim newLegend As New LegendBox()
' Now we'll set the columns for the box to use. The first 3 columns refer to legend entry properties
' LegendEntry.Name, LegendEntry.Marker, and LegendEntry.Value. The 4th column is a custom attribute column.
newLegend.Template = "%Name %Icon %Value %customToken"
' instantiate the legend entries with a name, value, and background color (LegendEntry.Marker will use this background).
Dim entry1 As New LegendEntry("Entry 1", "No Value", New Background(Color.Orange))
Dim entry2 As New LegendEntry("Entry 2", "No Value", New Background(Color.Purple))
' Dim entry3 As New LegendEntry("Entry 3", "No Value", New Background(Color.LightBlue))
' Now we'll add custom attributes to populate the customToken column of the legend box by adding custom attributes.
entry1.CustomAttributes.Add("customToken", "custom string 1")
entry2.CustomAttributes.Add("customToken", "custom string 2")
newLegend.ExtraEntries.Add(entry1)
newLegend.ExtraEntries.Add(entry2)
' Set an orientation for the custom legend.
newLegend.Orientation = dotnetCHARTING.Orientation.Top
' The the new legend to the chart.
Chart.ExtraLegendBoxes.Add(newLegend)
' Add some data.
' *DYNAMIC DATA NOTE*
' This sample uses random data to populate the chart. To populate
' a chart with database data see the following resources:
' - Classic samples folder
' - Help File > Data Tutorials
' - Sample: features/DataEngine.aspx
Chart.SeriesCollection.Add(getRandomData())
End Sub 'Page_Load
Function getRandomData() As SeriesCollection
Dim SC As New SeriesCollection()
Dim myR As New Random()
Dim a As Integer
For a = 0 To 3
Dim s As New Series()
s.Name = "Series " & a
Dim b As Integer
For b = 0 To 3
Dim e As New Element()
e.Name = "Element " & b
'e.YValue = -25 + myR.Next(50);
e.YValue = myR.Next(50)
s.Elements.Add(e)
Next b
SC.Add(s)
Next a
' Set Different Colors for our Series
SC(0).DefaultElement.Color = Color.FromArgb(49, 255, 49)
SC(1).DefaultElement.Color = Color.FromArgb(255, 255, 0)
SC(2).DefaultElement.Color = Color.FromArgb(255, 99, 49)
SC(3).DefaultElement.Color = Color.FromArgb(0, 156, 255)
Return SC
End Function 'getRandomData
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="Chart" runat="server" Width="519px" Height="400px"></dotnet:Chart>
</DIV>
</BODY>
</HTML>
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