📄 padding.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.Pies 'Horizontal;
Chart.Width = Unit.Parse(700)
Chart.Height = Unit.Parse(550)
Chart.TempDirectory = "temp"
Chart.Debug = True
Chart.Title = "Padding chart elements"
' This sample will demonstrate how to pad different parts of the chart.
' *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
Dim mySC As SeriesCollection = getRandomData()
' 1. PADDING THE CHART IMAGE
Chart.Margin = "50"
' 2. PADDING THE TITLE BOX
Chart.TitleBox.Position = TitleBoxPosition.FullWithLegend
Chart.TitleBox.Padding = 20
' 3. PADDING LEGEND BOXES IN TITLES
' This shows how padding of legendboxes works independently of the title boxes they are in.
' If a chart area is new with the legend in title and doesnt have a legend box instantiated
' you must do so before you can modify it's properties.
Chart.LegendBox.Padding = 8
' 4. PADDING LEGEND BOXES
' We'll create another legend box to show the padding functionality
Dim lb As New LegendBox()
lb.HeaderEntry.Visible = True
lb.HeaderEntry.Name = "New Box"
lb.HeaderEntry.Value = ""
lb.HeaderEntry.CustomAttributes.Clear()
lb.HeaderEntry.CustomAttributes.Add("Icon","")
' Legend entries can also add padding at the top which is useful with when used as headers.
lb.HeaderEntry.PaddingTop = 25
lb.Padding = 10
lb.DataSource = DataSource.FromSeriesCollection(mySC)
' Add the new legend box.
Chart.ExtraLegendBoxes.Add(lb)
' 5. PADDING BETWEEN PIES AND LABELS
' This works also with radar and gauge charts.
Chart.XAxis.TickLabelPadding = 15
' 6. PADDING OF CHART BOXES
' This includes chart areas, legend boxes etc.
Chart.ChartAreaSpacing = 20
' 7. PADDING BETWEEN PIES
' This works also with radar and gauge charts.
Chart.ChartArea.Padding = 50
' 8. PADDING ANNOTATIONS
Dim an As New Annotation("Padded " + ControlChars.Lf + "annotation")
an.Position = New Point(15, 250)
' Specify the annotaiton padding.
an.Padding = 25
' Add the annotation.
Chart.Annotations.Add(an)
' NOTE: If you would like to control column width please see sample features/BarFixedSize.aspx
' Add the random data.
Chart.SeriesCollection.Add(mySC)
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
Return SC
End Function 'getRandomData
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px">
</dotnet:Chart>
</DIV>
</BODY>
</HTML>
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