// Demonstrates how to use a legend box to refer to particular elements.
// *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 SeriesCollection mySC = getRandomData();
// First we make the marker appear on the column and set larger size. mySC[3].Elements[1].ForceMarker = true; mySC[3].Elements[1].Marker.Size = 10;
// Initialize the new legend box and make it only show the marker and name. LegendBox newLegend = new LegendBox(); newLegend.Template = "%Icon%Name";
// Initialize the new legend entry. LegendEntry newEntry = new LegendEntry(); newEntry.Name = "Important \nElement";
// Setup the marker for the legend entry newEntry.Marker.Type = ElementMarkerType.FivePointStar; newEntry.Marker.Size = 10; newEntry.SeriesType = SeriesType.Marker; // Ensure the same color is used for the marker as the element. newEntry.Marker.Color = palette[3];
// Add the entry to the legend and the legend to the chart. newLegend.ExtraEntries.Add(newEntry); Chart.ExtraLegendBoxes.Add(newLegend);
// Add the random data. Chart.SeriesCollection.Add(mySC);
}
SeriesCollection getRandomData() { SeriesCollection SC = new SeriesCollection(); Random myR = new Random(); for(int a = 1; a < 5; a++) { Series s = new Series(); s.Name = "Series " + a; for(int b = 1; b < 5; b++) { Element e = new Element(); e.Name = "Element " + b; e.YValue = myR.Next(50); s.Elements.Add(e); } SC.Add(s); }
<%@ Page Language="vb" Description="dotnetCHARTING Component" %> <%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%> <%@ Import Namespace="System.Drawing" %> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>.netCHARTING Sample</title> <script runat="server"> Dim palette As Color() = ChartPalettes.GetPalette(dotnetCHARTING.Palette.Default) Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Chart.Type = ChartType.Combo 'Horizontal; Chart.Width = 600 Chart.Height = 350 Chart.TempDirectory = "temp" Chart.Debug = True
' Demonstrates how to use a legend box to refer to particular elements.
' *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()
' First we make the marker appear on the column and set larger size. mySC(3).Elements(1).ForceMarker = True mySC(3).Elements(1).Marker.Size = 10
' Initialize the new legend box and make it only show the marker and name. Dim newLegend As LegendBox = New LegendBox() newLegend.Template = "%Icon%Name"
' Initialize the new legend entry. Dim newEntry As LegendEntry = New LegendEntry() newEntry.Name = "Important " & Constants.vbLf & "Element"
' Setup the marker for the legend entry newEntry.Marker.Type = ElementMarkerType.FivePointStar newEntry.Marker.Size = 10 newEntry.SeriesType = SeriesType.Marker ' Ensure the same color is used for the marker as the element. newEntry.Marker.Color = palette(3)
' Add the entry to the legend and the legend to the chart. newLegend.ExtraEntries.Add(newEntry) Chart.ExtraLegendBoxes.Add(newLegend)
' Add the random data. Chart.SeriesCollection.Add(mySC)
End Sub
Function getRandomData() As SeriesCollection Dim SC As SeriesCollection = New SeriesCollection() Dim myR As Random = New Random() For a As Integer = 1 To 4 Dim s As Series = New Series() s.Name = "Series " & a For b As Integer = 1 To 4 Dim e As Element = New Element() e.Name = "Element " & b e.YValue = myR.Next(50) s.Elements.Add(e) Next b SC.Add(s) Next a
Return SC End Function </script> </head> <body> <div style="text-align:center"> <dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px"> </dotnet:Chart> </div> </body> </html>
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