📄 dynamicaxismarkers.aspx

📁 掌握学习.net开发的非常好的资料
💻 ASPX
字号:
<%@ Page Language="C#"  debug="true" Description="dotnetCHARTING Component" %>
<%@ Register TagPrefix="dotnet"  Namespace="dotnetCHARTING" Assembly="dotnetCHARTING"%>
<%@ Import Namespace="System.Drawing" %>


<script runat="server">

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);
	}

	
	return SC;
}


void Page_Load(Object sender,EventArgs e)
{

	Chart.Type = ChartType.Combo;//Horizontal;
	Chart.TempDirectory = "temp";
	Chart.Debug=true;
	
	
	// This sample demonstrates how you can create dynamic axis markers based on the data.
	
	// We'll set the default type to line so it can be viewed better.
	Chart.DefaultSeries.Type = SeriesType.Line;
	
	
	// 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.
	
	SeriesCollection sc = getRandomData();
	
	// We now calculate and add the axis markers to the y axis.
	
	// First we'll get single series calculations the highs and lows from the series collection.
	Series highS = sc.Calculate("",Calculation.Maximum);
	Series lowS = sc.Calculate("",Calculation.Minimum);
	
	
	//Now from each series we can calculate high and low values as single elements.
	// Because series.Calculate returns an element we use the yValue of the result
	double high = highS.Calculate("",Calculation.Maximum).YValue;
	double low = lowS.Calculate("",Calculation.Minimum).YValue;
	
	
	// Add the markers to the y axis.
	Chart.YAxis.Markers.Add(new AxisMarker("Low",new Line(Color.Red,4), low));
	Chart.YAxis.Markers.Add(new AxisMarker("High",new Line(Color.Green,4), high));
	Chart.YAxis.Markers[0].Label.Alignment = StringAlignment.Near;
	Chart.YAxis.Markers[0].Label.LineAlignment = StringAlignment.Far;
	
	
	// This code will add a range marker
	Chart.YAxis.Markers.Add(new AxisMarker("Range", new Background(Color.Orange),low,high));
	
	
	// Add the random data.
	Chart.SeriesCollection.Add(sc);
    
    
}
</script>
<HTML><HEAD><TITLE>Dynamic Axis Marker</TITLE></HEAD>
<BODY>
<DIV align=center>
 <dotnet:Chart id="Chart"  runat="server"/>
</DIV>
</BODY>
</BODY>
</HTML>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -