PieChart
The PieChart is a widget that visualizes data as a circle divided into sectors that each represents a portion of the whole.
You can create the widget using one of the following approaches.
jQuery
var fruits = [ { fruit: 'Oranges', yield: 10, consumed: 7 }, { fruit: 'Apples', yield: 15, consumed: 14 }, { fruit: 'Bananas', yield: 9, consumed: 9 } ]; $(function() { $("#pieChart").dxPieChart({ dataSource: fruits, commonSeriesSettings: { argumentField: "fruit" }, series: [ { valueField: "yield" }, { valueField: "consumed" } ] }); });
<div id="pieChart"></div>
Angular
<dx-pie-chart [dataSource]="fruits"> <dxo-common-series-settings argumentField="fruit"></dxo-common-series-settings> <dxi-series valueField="yield"></dxi-series> <dxi-series valueField="consumed"></dxi-series> </dx-pie-chart>
export class AppComponent { fruits = [ // ... ]; }
AngularJS
<div ng-controller="DemoController"> <div dx-pie-chart="{ dataSource: fruits, commonSeriesSettings: { argumentField: 'fruit' }, series: [ { valueField: 'yield' }, { valueField: 'consumed' } ] }"></div> </div>
angular.module('DemoApp', ['dx']) .controller("DemoController", function ($scope) { $scope.fruits = [ { fruit: 'Oranges', yield: 10, consumed: 7 }, { fruit: 'Apples', yield: 15, consumed: 14 }, { fruit: 'Bananas', yield: 9, consumed: 9 } ]; });
Knockout
<div data-bind="dxPieChart: { dataSource: fruits, commonSeriesSettings: { argumentField: 'fruit' }, series: [ { valueField: 'yield' }, { valueField: 'consumed' } ] }"></div>
var viewModel = { fruits: [ { fruit: 'Oranges', yield: 10, consumed: 7 }, { fruit: 'Apples', yield: 15, consumed: 14 }, { fruit: 'Bananas', yield: 9, consumed: 9 } ] }; ko.applyBindings(viewModel);
ASP.NET MVC Controls
@(Html.DevExtreme().PieChart() .ID("pieChart") .DataSource(Fruits) .CommonSeriesSettings(c => c .ArgumentField("fruit") ) .Series(series => { series.Add().ValueField("yield"); series.Add().ValueField("consumed"); }) )
@(Html.DevExtreme().PieChart() _ .ID("pieChart") _ .DataSource(Fruits) _ .CommonSeriesSettings(Sub(c) c.ArgumentField("fruit") End Sub) _ .Series(Sub(series) series.Add().ValueField("yield") series.Add().ValueField("consumed") End Sub)
Note that DevExtreme widgets require you to link the jQuery library to your application. If you use the Knockout or AngularJS approach, the Knockout or AngularJS library is also required. For detailed information on linking these libraries to your project, refer to the topics in the Installation section.
See Also
Configuration
An object that defines configuration options for the PieChart widget.
Name | Description |
---|---|
adaptiveLayout | Specifies adaptive layout options. |
animation | Specifies animation options. |
commonSeriesSettings | An object defining the configuration options that are common for all series of the PieChart widget. |
customizeLabel | Customizes the appearance of an individual point label. |
customizePoint | Customizes the appearance of an individual series point. |
dataSource | Specifies the origin of data for the widget. |
diameter | Specifies the diameter of the pie. |
elementAttr | Specifies the attributes to be attached to the widget's root element. |
export | Configures the exporting and printing features. |
innerRadius | Specifies the fraction of the inner radius relative to the total radius in the series of the 'doughnut' type. The value should be between 0 and 1. |
legend | Specifies PieChart legend options. |
loadingIndicator | Configures the loading indicator. |
margin | Generates space around the widget. |
minDiameter | Specifies the minimum diameter of the pie. |
onDisposing | A handler for the disposing event. Executed when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only. |
onDone | A handler for the done event. |
onDrawn | A handler for the drawn event. |
onExported | A handler for the exported event. |
onExporting | A handler for the exporting event. |
onFileSaving | A handler for the fileSaving event. |
onIncidentOccurred | A handler for the incidentOccurred event. |
onInitialized | A handler for the initialized event. Executed only once, after the widget is initialized. |
onLegendClick | A handler for the legendClick event. |
onOptionChanged | A handler for the optionChanged event. Executed after an option of the widget is changed. |
onPointClick | A handler for the pointClick event. |
onPointHoverChanged | A handler for the pointHoverChanged event. |
onPointSelectionChanged | A handler for the pointSelectionChanged event. |
onTooltipHidden | A handler for the tooltipHidden event. |
onTooltipShown | A handler for the tooltipShown event. |
palette | Sets the name of the palette to be used in the chart. Alternatively, an array of colors can be set as a custom palette to be used within this chart. |
pathModified | Notifies the widget that it is embedded into an HTML page that uses a tag modifying the path. |
pointSelectionMode | Specifies whether a single point or multiple points can be selected in the chart. |
redrawOnResize | Specifies whether to redraw the widget when the size of the parent browser window changes or a mobile device rotates. |
resolveLabelOverlapping | Specifies how a chart must behave when point labels overlap. |
rtlEnabled | Specifies whether or not the widget supports right-to-left representation. |
segmentsDirection | Specifies the direction that the pie chart segments will occupy. |
series | Specifies options for the series of the PieChart widget. |
seriesTemplate | Defines options for the series template. |
size | Specifies the size of the widget in pixels. |
sizeGroup | Allows you to display several adjoining pies in the same size. |
startAngle | Specifies the angle in arc degrees from which the first segment of a pie chart should start. |
theme | Sets the name of the theme to be used in the widget. |
title | Specifies the widget title. |
tooltip | Configures tooltips. |
type | Specifies the type of the pie chart series. |
Methods
This section describes the methods that can be used in code to manipulate the PieChart widget.
Name | Description |
---|---|
beginUpdate() | Prevents the widget from refreshing until the endUpdate() method is called. |
clearSelection() | Deselects the chart's selected series. The series is displayed in an initial style. |
element() | Gets the root element of the widget. |
endUpdate() | Refreshes the widget after a call of the beginUpdate() method. |
exportTo(fileName, format) | Exports the widget into a document with a specified name and format. |
getAllSeries() | Returns an array of all series in the chart. |
getDataSource() | Returns the DataSource instance. |
getSeriesByName(seriesName) | Gets a series within the chart's series collection by the specified name (see the name option). |
getSeriesByPos(seriesIndex) | Gets a series within the chart's series collection by its position number. |
getSize() | Gets the current size of the widget. |
hideLoadingIndicator() | Conceals the loading indicator. |
hideTooltip() | Hides all widget tooltips. |
instance() | Returns this widget's instance. Use it to access other methods of the widget. |
off(eventName) | Detaches all event handlers from the specified event. |
off(eventName, eventHandler) | Detaches a particular event handler from the specified event. |
on(eventName, eventHandler) | Subscribes to a specified event. |
on(events) | Subscribes to the specified events. |
option() | Gets the widget's options. |
option(optionName) | Gets a specific option value. |
option(optionName, optionValue) | Assigns a new value to a specific option. |
option(options) | Sets one or more options. |
print() | Opens the browser's print window. |
render() | Redraws the widget. |
render(renderOptions) | Redraws a widget. |
showLoadingIndicator() | Displays the loading indicator. |
svg() | Returns the widget's SVG markup. |
Use the dxPieChart
registered method to access the PieChart widget, as demonstrated in the code below.
var pieChart = $("#pieChartContainer").dxPieChart("instance");
Events
This section describes events fired by this widget.
Name | Description |
---|---|
disposing | Raised when the widget is removed from the DOM using the remove(), empty(), or html() jQuery methods only. |
done | Fires when the Series and Point chart elements are ready to be accessed. |
drawn | Fires when the widget has finished drawing itself. |
exported | Fires after data from the widget is exported. |
exporting | Fires before data from the widget is exported. |
fileSaving | Fires before a file with exported data is saved on the user's local storage. |
incidentOccurred | Fires when an error or warning appears in a widget. |
initialized | Raised only once, after the widget is initialized. |
legendClick | Fires when an item on the chart legend is clicked. |
optionChanged | Raised after an option of the widget is changed. |
pointClick | Fires when a user clicks a series point. |
pointHoverChanged | Fires when the hover state of a series point has been changed. |
pointSelectionChanged | Fires when the selection state of a series point has been changed. |
tooltipHidden | Fires when a point's tooltip becomes hidden. |
tooltipShown | Fires when a point's tooltip appears. |
See Also
- Handle Events: jQuery | Angular | AngularJS | Knockout | ASP.NET MVC
Series Types
This section lists the objects that define options to be used to configure series of particular types.
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