Charts - Pie with Small Values Grouped

In this example, the PieChart component combines all values below the threshold property in one category called «others».

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Backend API

@(Html.DevExtreme().PieChart() .ID("pie") .Palette(VizPalette.Bright) .Title("Top internet languages") .Legend(l => l .HorizontalAlignment(HorizontalAlignment.Center) .VerticalAlignment(VerticalEdge.Bottom) ) .Export(e => e.Enabled(true)) .Series(s => s .Add() .ArgumentField("Language") .ValueField("Percent") .Label(l => l .Visible(true) .Connector(c => c .Visible(true) .Width(0.5) ) .Format(Format.FixedPoint) .CustomizeText(@<text> function (point) { return point.argumentText + ": " + point.valueText + "%"; } </text>) ) .SmallValuesGrouping(g => g .Mode(SmallValuesGroupingMode.SmallValueThreshold) .Threshold(4.5) ) ) .DataSource(Model) )

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 PieWithSmallValuesGrouped() { return View(SampleData.LanguagesPercentage); } } }

using System.Collections.Generic; namespace DevExtreme.NETCore.Demos.Models.SampleData { public partial class SampleData { public static readonly IEnumerable<object> LanguagesPercentage = new[] { new { Language = "English", Percent = 55.5 }, new { Language = "Chinese", Percent = 2.8 }, new { Language = "Spanish", Percent = 4.6 }, new { Language = "Japanese", Percent = 5.0 }, new { Language = "Portuguese", Percent = 2.5 }, new { Language = "German", Percent = 5.8 }, new { Language = "French", Percent = 4.0 }, new { Language = "Russian", Percent = 5.9 }, new { Language = "Italian", Percent = 1.9 }, new { Language = "Polish", Percent = 1.7 }, new { Language = "Turkish", Percent = 1.5 }, new { Language = "Dutch", Percent = 1.3 }, new { Language = "Persian", Percent = 0.9 }, new { Language = "Arabic", Percent = 0.8 }, new { Language = "Korean", Percent = 0.7 }, new { Language = "Czech", Percent = 0.7 }, new { Language = "Swedish", Percent = 0.5 }, new { Language = "Vietnamese", Percent = 0.4 }, new { Language = "Indonesian", Percent = 0.4 }, new { Language = "Greek", Percent = 0.4 }, new { Language = "Romanian", Percent = 0.4 }, new { Language = "Hungarian", Percent = 0.3 }, new { Language = "Danish", Percent = 0.3 }, new { Language = "Thai", Percent = 0.3 }, new { Language = "Finnish", Percent = 0.2 }, new { Language = "Slovak", Percent = 0.2 }, new { Language = "Bulgarian", Percent = 0.2 }, new { Language = "Norwegian", Percent = 0.2 }, new { Language = "Hebrew", Percent = 0.1 }, new { Language = "Lithuanian", Percent = 0.1 }, new { Language = "Croatian", Percent = 0.1 }, new { Language = "Ukrainian", Percent = 0.1 }, new { Language = "Norwegian Bokmål", Percent = 0.1 }, new { Language = "Serbian", Percent = 0.1 }, new { Language = "Catalan", Percent = 0.1 }, new { Language = "Slovenian", Percent = 0.1 }, new { Language = "Latvian", Percent = 0.1 }, new { Language = "Estonian", Percent = 0.1 } }; } }

#pie { height: 440px; }