📄 dynamicticks.aspx
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<%@ Page Language="C#" debug="true" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet" Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>
<HTML>
<HEAD>
<TITLE>Dynamic Ticks</TITLE>
<script runat="server">
void Page_Load(Object sender,EventArgs e)
{
Chart.Type = ChartType.Combo;//Horizontal;
Chart.Width = 600;
Chart.Height = 350;
Chart.TempDirectory = "temp";
Chart.Debug = true;
// This sample will demonstrate how to create dynamic tick labels based on chart data.
// First we get our data, if you would like to get the data from a database you need to use
// the data engine. See sample: features/dataEngine.aspx. Or the dataEngine tutorial in the help file.
SeriesCollection sc = getRandomData();
// Pass a simple string manipulation funtion to the x axis.
Chart.XAxis = Chart.XAxis.Calculate("XAxis", new ChangeValueDelegate(MyFunction));
// Have the tick mark labels be the total value of the each ticks group of elements.
Chart.XAxis.TickLabel.Text = "%Value";
// Each tick label will first become a value, then our function below will change the tick label based
// the ticks value.
// To expand on this we'll use an annotation to show how many tick groups are over and under 100.
// We have initialized an annotation and 2 counters below.
// Zero out the counters.
underCount = 0;
overCount = 0;
// Add the annotation to our chart.
Chart.Annotations.Add(ann);
// Add the random data.
Chart.SeriesCollection.Add(sc);
}
public static Annotation ann = new Annotation();
public static int underCount = 0;
public static int overCount = 0;
public static string MyFunction(string value)
{
int num = int.Parse(value);
string newLabel = "";
// Modify the string and increment counters.
if(num > 100)
{
newLabel = " Over 100 (" + value + ")";
overCount++;
}
else
{
newLabel = " Under 100 (" + value + ")";
underCount++;
}
// Update the annotation with the new count.
ann.Label.Text = overCount + " group(s) are over, and " + underCount + " are under 100.";
ann.Position = new Point(100,0);
return newLabel;
}
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 = -25 + myR.Next(50);
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>
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