📄 oscillators.aspx
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<%@ Page Language="vb" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<HTML>
<HEAD>
<TITLE>.netCHARTING Sample</TITLE>
<script runat="server">
Sub Page_Load(sender As [Object], e As EventArgs)
' This sample demonstrates the use of financial indicators : Momentum and MoneyFlowIndexOverPeriod
' The Financial Chart
FinancialChart.Title = "Financial Chart"
FinancialChart.TempDirectory = "temp"
FinancialChart.Debug = True
FinancialChart.ShadingEffect = True
FinancialChart.LegendBox.Template = "%icon %name"
FinancialChart.Size = "800X600"
FinancialChart.TitleBox.Position = TitleBoxPosition.FullWithLegend
FinancialChart.DefaultElement.Marker.Visible = False
' For financial indicators the time scale is inverted (i.e. the first element of the series is the newest)
FinancialChart.XAxis.InvertScale = True
FinancialChart.YAxis.Label.Text = "Price (USD)"
FinancialChart.YAxis.FormatString = "currency"
FinancialChart.YAxis.Scale = Scale.Range
' Modify the x axis labels.
FinancialChart.XAxis.Scale = Scale.Time
FinancialChart.XAxis.TimeInterval = TimeInterval.Day
FinancialChart.XAxis.TimeScaleLabels.DayFormatString = "o"
FinancialChart.XAxis.TimeScaleLabels.RangeIntervals.Add(TimeInterval.Month)
FinancialChart.XAxis.TimeScaleLabels.MonthFormatString = "MMM"
Dim priceDataEngine As New DataEngine()
priceDataEngine.ChartObject = FinancialChart
priceDataEngine.ChartType = ChartType.Financial
priceDataEngine.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;data source=" + Server.MapPath("../../database/chartsample.mdb")
priceDataEngine.DateGrouping = TimeInterval.Day
priceDataEngine.StartDate = New DateTime(2001, 6, 1)
priceDataEngine.EndDate = New DateTime(2001, 7, 30)
' Here we import data from the FinancialIBM table from within chartsample.mdb
priceDataEngine.SqlStatement = "SELECT [Date], [High], [Low],[Close],[Volume],[Open] FROM FinancialIBM WHERE Date >= #STARTDATE# AND Date <= #ENDDATE# ORDER BY Date Desc"
priceDataEngine.DataFields = "xAxis=Date,High=High,Low=Low,Close=Close,Volume=Volume,Open=Open"
Dim sc As SeriesCollection = priceDataEngine.GetSeries()
Dim prices As Series = Nothing
If sc.Count > 0 Then
prices = sc(0)
Else
Return
End If
prices.Name = "Prices"
prices.DefaultElement.ToolTip = "L:%Low | H:%High"
prices.Type = SeriesTypeFinancial.CandleStick
Dim cp As New CalendarPattern(TimeInterval.Day, TimeInterval.Week, "0000001")
prices.Trim(cp, ElementValue.XDateTime)
FinancialChart.SeriesCollection.Add(prices)
' Take off the marker
' Money flow chart area
Dim moneyFlowChartArea As New ChartArea()
moneyFlowChartArea.HeightPercentage = 20
moneyFlowChartArea.YAxis.Label.Text = "Money Flow"
FinancialChart.ExtraChartAreas.Add(moneyFlowChartArea)
' MoneyFlowIndexOverPeriod - <P>Evaluates the Money Flow Index (MFI) measures the strength of money flowing
' in and out of a security over a given period.
Dim moneyFlowOverPeriod As Series = FinancialEngine.MoneyFlowIdxOverPeriod(prices, 10)
moneyFlowOverPeriod.Type = SeriesType.Spline
moneyFlowOverPeriod.DefaultElement.Color = Color.FromArgb(150, Color.Red)
moneyFlowChartArea.SeriesCollection.Add(moneyFlowOverPeriod)
' Momentum chart area
Dim momentumChartArea As New ChartArea()
momentumChartArea.HeightPercentage = 20
momentumChartArea.YAxis.Label.Text = "Momentum"
FinancialChart.ExtraChartAreas.Add(momentumChartArea)
' Momentum - We evaluate the 10-day momentum which is simply the difference between today's
' closing price and the close price 10 days ago.
Dim momentum As Series = FinancialEngine.Momentum(prices, 10)
momentum.Type = SeriesType.Spline
momentum.DefaultElement.Color = Color.FromArgb(200, Color.Blue)
momentumChartArea.SeriesCollection.Add(momentum)
End Sub 'Page_Load
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="FinancialChart" runat="server"/>
</dotnet:Chart>
</DIV>
</BODY>
</HTML>
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