// Demonstrates how a step line can be created from a normal line.
// *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();
// Add the random data. Chart.SeriesCollection.Add(mySC); Chart.SeriesCollection.Add(makeDateTimeStepSeries(mySC[0]));
SeriesCollection getRandomData() { SeriesCollection SC = new SeriesCollection(); Random myR = new Random(1); DateTime dt = new DateTime(2006,1,1); for(int a = 1; a < 2; a++) { Series s = new Series(); s.Name = "Series " + a.ToString(); for(int b = 1; b < 10; b++) { Element e = new Element(); //e.Name = "Element " + b.ToString(); e.XDateTime = dt = dt.AddDays(1); e.YValue = myR.Next(50); s.Elements.Add(e); } SC.Add(s); }
return SC; }
Series makeDateTimeStepSeries(Series s) { // This method creates a series with an additional element for each original element which creates steps. Series ns = new Series(); for(int i = 0; i < s.Elements.Count;i++) { if(i > 0) ns.Elements.Add(new Element(s.Elements[i-1].Name,s.Elements[i-1].XDateTime.AddSeconds(1),s.Elements[i].YValue)); ns.Elements.Add(new Element(s.Elements[i].Name,s.Elements[i].XDateTime,s.Elements[i].YValue)); } return ns; } </script> </head> <body> <div style="text-align:center"> <dotnet:Chart id="Chart" runat="server" > </dotnet:Chart> </div> </body> </html>
' Demonstrates how a step line can be created from a normal line.
' *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()
' Add the random data. Chart.SeriesCollection.Add(mySC) Chart.SeriesCollection.Add(makeDateTimeStepSeries(mySC(0)))
Function getRandomData() As SeriesCollection Dim SC As SeriesCollection = New SeriesCollection() Dim myR As Random = New Random(1) Dim dt As DateTime = New DateTime(2006,1,1) For a As Integer = 1 To 1 Dim s As Series = New Series() s.Name = "Series " & a.ToString() For b As Integer = 1 To 9 Dim e As Element = New Element() 'e.Name = "Element " + b.ToString(); dt = dt.AddDays(1) e.XDateTime = dt e.YValue = myR.Next(50) s.Elements.Add(e) Next b SC.Add(s) Next a
Return SC End Function
Function makeDateTimeStepSeries(ByVal s As Series) As Series ' This method creates a series with an additional element for each original element which creates steps. Dim ns As Series = New Series() For i As Integer = 0 To s.Elements.Count - 1 If i > 0 Then ns.Elements.Add(New Element(s.Elements(i-1).Name,s.Elements(i-1).XDateTime.AddSeconds(1),s.Elements(i).YValue)) End If ns.Elements.Add(New Element(s.Elements(i).Name,s.Elements(i).XDateTime,s.Elements(i).YValue)) Next i Return ns End Function </script> </head> <body> <div style="text-align:center"> <dotnet:Chart id="Chart" runat="server" > </dotnet:Chart> </div> </body> </html>
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