📄 calculatedtimeaxis.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 demonstrate how to use calculated time axes.
Chart.DefaultLegendBox.Orientation = dotnetCHARTING.Orientation.Bottom
' *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()
' Set some properties for the main x axis.
Chart.XAxis.TimeInterval = TimeInterval.Days
Chart.XAxis.Label.Text = "Days"
' Calculate an axis from the x axis and add it with 'weeks' intervals.
Chart.AxisCollection.Add(Chart.XAxis.Calculate("Weeks", TimeInterval.Weeks))
' Calculate an axis from the x axis and add it with an advanced time interval (3 Days) intervals.
Dim tia As TimeIntervalAdvanced = TimeIntervalAdvanced.Days
tia.Multiplier = 3
Dim calculatedXAxis As Axis = Chart.XAxis.Calculate("TimeIntervalAdvanced: Every 3 Days", tia)
calculatedXAxis.Orientation = dotnetCHARTING.Orientation.Top
Chart.AxisCollection.Add(calculatedXAxis)
' 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 dt As New DateTime(2005, 1, 1)
Dim a As Integer
For a = 0 To 0
Dim s As New Series()
s.Name = "Series " + a.ToString()
Dim b As Integer
For b = 0 To 22
dt = dt.AddDays(1)
Dim e As New Element()
'e.Name = "Element " + b.ToString()
e.XDateTime = dt
'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)
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>
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