📄 invisiblelegendentry.aspx
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<%@ Page Language="C#" debug="true" Description="dotnetCHARTING Component"%>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<script runat="server">
void Page_Load(Object sender,EventArgs e)
{
//set global properties
Chart.Title="Item sales";
Chart.XAxis.Label.Text ="months";
Chart.YAxis.FormatString="currency";
Chart.TempDirectory="temp";
Chart.Debug=true;
Chart.Size="800X500";
Chart.TitleBox.Position = TitleBoxPosition.FullWithLegend;
//Make series legend entries invisible and add 3 custom legend entries
Chart.DefaultSeries.LegendEntry.Visible=false;
LegendEntry singleLegendEntry = new LegendEntry();
singleLegendEntry.Name="Sales < $3500";
singleLegendEntry.Background.Color=Color.Red;
Chart.ExtraLegendEntries.Add(singleLegendEntry);
singleLegendEntry = new LegendEntry();
singleLegendEntry.Name="$3500 < Sales < $5000";
singleLegendEntry.Background.Color=Color.Yellow;
Chart.ExtraLegendEntries.Add(singleLegendEntry);
singleLegendEntry = new LegendEntry();
singleLegendEntry.Name="$5000 < Sales ";
singleLegendEntry.Background.Color=Color.Green;
Chart.ExtraLegendEntries.Add(singleLegendEntry);
//Add a series
DataEngine de = new DataEngine();
de.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;data source=" + Server.MapPath("../../database/chartsample.mdb");
de.StartDate=new DateTime (2002,1,1,0,0,0);
de.EndDate = new DateTime (2002,12,31,23,59,59);
de.DateGrouping = TimeInterval.Year;
de.SqlStatement= @"SELECT OrderDate,Total, Name FROM Orders WHERE OrderDate >= #STARTDATE# AND OrderDate <= #ENDDATE# ORDER BY OrderDate";
SeriesCollection sc = de.GetSeries();
// customize element settings
//set the color for different customers in each month based on their total sale.
foreach(dotnetCHARTING.Series sr in sc)
{
foreach(dotnetCHARTING.Element el in sr.Elements)
{
if (el.YValue < 3500)
el.Color = Color.Red;
else if (el.YValue < 5000)
el.Color = Color.Yellow;
else
el.Color = Color.Green;
}
}
Chart.SeriesCollection.Add(sc);
}
</script>
<HTML><HEAD><TITLE>Invisible Legend Entry</TITLE></HEAD>
<BODY>
<DIV align=center>
<dotnet:Chart id="Chart" runat="server"/>
</DIV>
</BODY>
</BODY>
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