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Charts - Strips

DevExtreme Chart can display background strips to better highlight a range of values.

To configure strips, declare an array of objects in the argumentAxis.strips[] or valueAxis.strips[] property. Each object in this array configures an individual strip. The startValue and endValue properties define the highlighted range.

This demo shows two value axis strips. The code configures label text and font.color properties for each strip.

Backend API
<script> var highAverage = 60.8, lowAverage = 53, highAverageColor = "#ff9b52", lowAverageColor = "#6199e6"; function getLabelsSettings(backgroundColor) { return { visible: true, backgroundColor: backgroundColor, customizeText: customizeText }; } function customizeText() { return this.valueText + "&#176F"; } function customizePoint() { if (this.value > highAverage) { return { color: highAverageColor }; } else if (this.value < lowAverage) { return { color: lowAverageColor }; } } function customizeLabel () { if (this.value > highAverage) { return getLabelsSettings(highAverageColor); } else if (this.value < lowAverage) { return getLabelsSettings(lowAverageColor); } } </script> @(Html.DevExtreme().Chart() .ID("chart") .ValueAxis(a => a .Add() .Label(l => l.CustomizeText("customizeText")) .Strips(s => { s.Add() .StartValue(new JS("highAverage")) .Color("rgba(255,155,85,0.15)") .Label(l => l .Text("Above average high") .Font(f => f.Color(new JS("highAverageColor"))) ); s.Add() .EndValue(new JS("lowAverage")) .Color("rgba(97,153,230,0.10)") .Label(l => l .Text("Below average low") .Font(f => f.Color(new JS("lowAverageColor"))) ); }) .StripStyle(s => s. Label(l => l.Font(f => f.Weight(500).Size(14))) ) ) .Series(s => s.Add() .ArgumentField("Day") .ValueField("Temperature") .Type(SeriesType.Spline) .Color("#a3aaaa") ) .CustomizePoint("customizePoint") .CustomizeLabel("customizeLabel") .Title("Temperature (high) in September, &#176;F") .Legend(l => l.Visible(false)) .Export(e => e.Enabled(true)) .DataSource(new[] { new { Temperature = 52, Day = "1" }, new { Temperature = 57, Day = "2" }, new { Temperature = 58, Day = "3" }, new { Temperature = 56, Day = "4" }, new { Temperature = 59, Day = "5" }, new { Temperature = 59, Day = "6" }, new { Temperature = 56, Day = "7" }, new { Temperature = 62, Day = "8" }, new { Temperature = 57, Day = "9" }, new { Temperature = 54, Day = "10" }, new { Temperature = 52, Day = "11" }, new { Temperature = 58, Day = "12" }, new { Temperature = 53, Day = "13" }, new { Temperature = 54, Day = "14" }, new { Temperature = 57, Day = "15" }, new { Temperature = 61, Day = "16" }, new { Temperature = 58, Day = "17" }, new { Temperature = 63, Day = "18" }, new { Temperature = 64, Day = "19" }, new { Temperature = 52, Day = "20" } }) )
using DevExtreme.AspNet.Data; using DevExtreme.AspNet.Mvc; using DevExtreme.NETCore.Demos.Models; using DevExtreme.NETCore.Demos.Models.SampleData; using Microsoft.AspNetCore.Mvc; using Newtonsoft.Json; using System; using System.Collections.Generic; using System.Linq; namespace DevExtreme.NETCore.Demos.Controllers { public class ChartsController : Controller { public ActionResult Strips() { return View(); } } }
#chart { height: 440px; }

You can specify the same appearance for all strips on a specific axis or in the Chart. To specify the same appearance, declare the stripStyle object in the valueAxis, argumentAxis, or commonAxisSettings object. Individual settings override common settings. In this example, we used the stripStyle object to specify the font weight and size for all strip labels on the value axis.