Doughnut

Documentation

This demo illustrates the PieChart widget with the doughnut series type, which is often used when comparing the percentage values of different point arguments within a series.

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ASP.NET Core

@model IEnumerable<object> @(Html.DevExtreme().PieChart() .ID("pie") .Palette(VizPalette.SoftPastel) .Type(PieChartType.Doughnut) .Title("The Population of Continents and Regions") .Tooltip(t => t .Enabled(true) .Format(Format.Millions) .CustomizeTooltip(@<text> function(arg) { var percentText = Globalize.formatNumber(arg.percent, { style: "percent", minimumFractionDigits: 2, maximumFractionDigits: 2 }); return { text: arg.valueText + " - " + percentText }; } </text>) ) .Legend(l => l .HorizontalAlignment(HorizontalAlignment.Right) .VerticalAlignment(VerticalEdge.Top) .Margin(0) ) .Export(e => e.Enabled(true)) .Series(s => s .Add() .ArgumentField("Region") .ValueField("Val") .Label(l => l .Visible(true) .Format(Format.Millions) .Connector(c => c.Visible(true)) ) ) .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 Doughnut() { return View(SampleData.PopulationData); } } }

#pie { height: 440px; }

Doughnut

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ASP.NET MVC