ASP.NET MVC Range Area Charts & Graphs

Download ASP.NET Chart Samples

Range Area Charts are rendered by shading the area between a range of values (LOW & HIGH) and enveloping it with straight line segments. The given example shows ASP.NET MVC Range Area Chart along with source code that you can try running locally.

@{
	Layout = null;
}

<!DOCTYPE HTML>
<html>
<head>
<script>
window.onload = function () {

var chart = new CanvasJS.Chart("chartContainer", {
	animationEnabled: true,
	exportEnabled: true,
	title: {
		text: "Average High/Low Tempaerature - Paris, 2017"
	},
	axisY: {
		includeZero: false,
		title: "Temperature (°C)",
		suffix: " °C"
	},
	axisX: {
		valueFormatString: "MMM",
		intervalType: "month",
		interval: 1
	},
	data: [
		{
			type: "rangeArea",
			xValueFormatString: "MMMM",
			yValueFormatString: "#,##0.## °C",
			toolTipContent: " <span style=\"color:#4F81BC\">{x}</span><br><b>Min:</b> {y[0]}<br><b>Max:</b> {y[1]}",
			xValueType: "dateTime",
			dataPoints:  @Html.Raw(ViewBag.DataPoints)
		}]
});
chart.render();

}
</script>
</head>
<body>
<div id="chartContainer" style="height: 370px; width: 100%;"></div>
<script type="text/javascript" src="https://cdn.canvasjs.com/canvasjs.min.js"></script>
</body>
</html>                              
using ASPNET_MVC_ChartsDemo.Models;
using Newtonsoft.Json;
using System.Collections.Generic;
using System.Web.Mvc;

namespace ASPNET_MVC_ChartsDemo.Controllers
{
	public class HomeController : Controller
	{
		// GET: Home
		public ActionResult Index()
		{
			List<DataPoint> dataPoints = new List<DataPoint>();

			dataPoints.Add(new DataPoint(1483209000000, new double[] { 3, 7 }));
			dataPoints.Add(new DataPoint(1485887400000, new double[] { 3, 8 }));
			dataPoints.Add(new DataPoint(1488306600000, new double[] { 5, 12 }));
			dataPoints.Add(new DataPoint(1490985000000, new double[] { 7, 16 }));
			dataPoints.Add(new DataPoint(1493577000000, new double[] { 11, 20 }));
			dataPoints.Add(new DataPoint(1496255400000, new double[] { 14, 23 }));
			dataPoints.Add(new DataPoint(1498847400000, new double[] { 16, 25 }));
			dataPoints.Add(new DataPoint(1501525800000, new double[] { 16, 25 }));
			dataPoints.Add(new DataPoint(1504204200000, new double[] { 13, 21 }));
			dataPoints.Add(new DataPoint(1506796200000, new double[] { 10, 16 }));
			dataPoints.Add(new DataPoint(1509474600000, new double[] { 6, 11 }));
			dataPoints.Add(new DataPoint(1512066600000, new double[] { 3, 8 }));

			ViewBag.DataPoints = JsonConvert.SerializeObject(dataPoints);

			return View();
		}
	}
}                        
using System;
using System.Runtime.Serialization;

namespace ASPNET_MVC_ChartsDemo.Models
{
	//DataContract for Serializing Data - required to serve in JSON format
	[DataContract]
	public class DataPoint
	{
		public DataPoint(double x, double[] y)
		{
			this.X = x;
			this.Y = y;
		}

		//Explicitly setting the name to be used while serializing to JSON.
		[DataMember(Name = "x")]
		public Nullable<double> X = null;

		//Explicitly setting the name to be used while serializing to JSON.
		[DataMember(Name = "y")]
		public double[] Y = null;
	}
}

Chart Customizations

The text shown in the toolTip can be customized using toolTipContent property. Some other commonly used customization options are showInLegend, color, fillOpacity, etc.

Note   For step by step instructions, follow our ASP.NET MVC Integration Tutorial