📄 volumeindicators.aspx
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<%@ Page Language="C#" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="dotnetCHARTING"%>
<HTML>
<HEAD>
<TITLE>.netCHARTING Financial Volume Indicators Sample</TITLE>
<script runat="server">
void Page_Load(Object sender,EventArgs e)
{
// This sample demonstrates the use of the Volume indicators
string connection = @"Provider=Microsoft.Jet.OLEDB.4.0;data source=" + Server.MapPath("../../database/chartsample.mdb");
// First we declare a chart of type FinancialChart
// The Financial Chart
FinancialChart.Title="Financial Chart";
FinancialChart.TempDirectory="temp";
FinancialChart.Debug=true;
FinancialChart.ShadingEffect = true;
FinancialChart.LegendBox.Template ="%icon %name";
FinancialChart.Size="900X800";
FinancialChart.XAxis.Scale = Scale.Time;
FinancialChart.XAxis.FormatString = "MMM d";
FinancialChart.XAxis.TimeInterval = TimeInterval.Day;
// 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.ScaleRange.ValueLow = 40;
// Here we load data samples from the FinancialMicrosoft table from within chartsample.mdb
DataEngine priceDataEngine = new DataEngine ();
priceDataEngine.ChartType = ChartType.Financial;
priceDataEngine.ConnectionString = connection;
priceDataEngine.DateGrouping = TimeInterval.Day;
priceDataEngine.StartDate = new DateTime (2001,2,1);
priceDataEngine.EndDate = new DateTime (2001,9,30);
priceDataEngine.SqlStatement = @"SELECT [Date], [High], [Low],[Open],[Close],[Volume] FROM FinancialMicrosoft WHERE Date >= #STARTDATE# AND Date <= #ENDDATE# ORDER BY Date DESC ";
priceDataEngine.DataFields = "xAxis=Date,High=High,Low=Low,Open=Open,Close=Close, Volume=Volume";
SeriesCollection sc = priceDataEngine.GetSeries ();
Series prices = null;
if(sc.Count>0)
prices = sc[0];
else
return;
prices.DefaultElement.ToolTip="L:%Low-H:%High";
prices.DefaultElement.SmartLabel.Font = new Font("Arial", 6);
prices.DefaultElement.SmartLabel.Text="O:%Open-C:%Close";
prices.Type = SeriesTypeFinancial.CandleStick;
CalendarPattern cp = new CalendarPattern (TimeInterval.Day, TimeInterval.Week, "0000001");
cp.AdjustmentUnit = TimeInterval.Day;
prices.Trim (cp, ElementValue.XDateTime);
prices.Name = "Prices";
FinancialChart.SeriesCollection.Add (prices);
// Create the second chart area
ChartArea volumeChartArea = new ChartArea();
volumeChartArea.Label.Text = "Stock Volume";
volumeChartArea.YAxis.Label.Text = "Volumes";
volumeChartArea.Series.Name="Stock Volume";
volumeChartArea.HeightPercentage = 17;
volumeChartArea.Series.DefaultElement.ToolTip="%YValue";
FinancialChart.ExtraChartAreas.Add(volumeChartArea);
// Add a volume series to the chart area
DataEngine volumeDataEngine = new DataEngine ();
volumeDataEngine.ConnectionString = connection;
volumeDataEngine.DateGrouping = TimeInterval.Days;
volumeDataEngine.StartDate=new DateTime (2001,2,1);
volumeDataEngine.EndDate = new DateTime (2001,9,30);
volumeDataEngine.SqlStatement= @"SELECT [date],[volume] FROM FinancialMicrosoft WHERE date >= #STARTDATE# AND date <= #ENDDATE# ORDER BY Date DESC";
volumeDataEngine.DataFields="xAxis=date,yAxis=volume";
Series volumes = volumeDataEngine.GetSeries () [0];
volumes.Trim (cp, ElementValue.XDateTime);
volumes.Name = "Volumes";
volumes.Type = SeriesType.Bar;
volumeChartArea.SeriesCollection.Add (volumes);
// Financial Volume Indicators
FinancialChart.DefaultSeries.DefaultElement.Marker = new ElementMarker (ElementMarkerType.None);
FinancialChart.ChartAreaLayout.Mode = ChartAreaLayoutMode.Vertical;
FinancialChart.DefaultSeries.Type = SeriesType.Spline;
// Negative Volume Index
Series negativeVolume = FinancialEngine.NegativeVolumeIndex(prices);
negativeVolume.Type = SeriesType.Spline;
negativeVolume.DefaultElement.Color = Color.FromArgb(122,255,45);
volumeChartArea.SeriesCollection.Add(negativeVolume);
// Positive Volume Index
Series positiveVolume = FinancialEngine.PositiveVolumeIndex(prices);
positiveVolume.Type = SeriesType.Spline;
positiveVolume.DefaultElement.Color = Color.FromArgb(255,125,45);
volumeChartArea.SeriesCollection.Add(positiveVolume);
// Create a new char area for the indicator OnBalanceVolume
ChartArea balanceChartArea = new ChartArea();
balanceChartArea.Label.Text = "On Balance Volume";
balanceChartArea.YAxis.Label.Text = "Volumes";
balanceChartArea.HeightPercentage = 17;
FinancialChart.ExtraChartAreas.Add(balanceChartArea);
// On Balance Volume indicator
Series onBalanceVolume = FinancialEngine.OnBalanceVolume(prices);
onBalanceVolume.Type = SeriesType.Spline;
onBalanceVolume.DefaultElement.Color = Color.FromArgb(45,125,255);
balanceChartArea.SeriesCollection.Add(onBalanceVolume);
}
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="FinancialChart" runat="server"/>
</dotnet:Chart>
</DIV>
</BODY>
</HTML>
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