📄 gradientspline.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" %>
<HTML>
<HEAD>
<TITLE>.netCHARTING Sample</TITLE>
<script runat="server">
void Page_Load(Object sender,EventArgs e)
{
Chart.Type = ChartType.Combo;//Horizontal;
Chart.Size = "600x350";
Chart.TempDirectory = "temp";
Chart.Debug = true;
Chart.Title = ".netCHARTING Sample";
// This sample demonstrates using a multi-color 2D spline.
// Set some chart properties.
Chart.ChartArea.Label.Text = "Notice the spline color change between points of different colors.";
Chart.DefaultSeries.Type = SeriesType.Spline;
Chart.TitleBox.Position = TitleBoxPosition.FullWithLegend;
// *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();
// Iterate the elements and set the color to red if an elements YValue is outside the 20-40 range.
foreach(Element myE in mySC[0].Elements)
if(myE.YValue > 40 || myE.YValue < 20) myE.Color = Color.Red;
// Add a couple axis markers.
Chart.YAxis.Markers.Add(new AxisMarker("",Color.FromArgb(50,Color.Red),40,100));
Chart.YAxis.Markers.Add(new AxisMarker("",Color.FromArgb(50,Color.Red),0,20));
Chart.YAxis.Markers[0].LegendEntry.Visible = false;
Chart.YAxis.Markers[1].LegendEntry.Visible = false;
// Add the random data.
Chart.SeriesCollection.Add(mySC);
}
SeriesCollection getRandomData()
{
SeriesCollection SC = new SeriesCollection();
Random myR = new Random(1);
for(int a = 1; a < 2; a++)
{
Series s = new Series();
s.Name = "Sample Data " + a.ToString();
for(int b = 1; b < 15; b++)
{
Element e = new Element();
e.Name = "Element " + b.ToString();
e.YValue = myR.Next(50);
s.Elements.Add(e);
}
SC.Add(s);
}
// Set Different Colors for our Series
//SC[0].DefaultElement.Color = Color.FromArgb(49,255,49);
//SC[1].DefaultElement.Color = Color.FromArgb(255,255,0);
//SC[2].DefaultElement.Color = Color.FromArgb(255,99,49);
//SC[3].DefaultElement.Color = Color.FromArgb(0,156,255);
return SC;
}
</script>
</HEAD>
<BODY>
<DIV align="center">
<dotnet:Chart id="Chart" runat="server" Width="568px" Height="344px">
</dotnet:Chart>
</DIV>
</BODY>
</HTML>
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