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Showing content from https://js.devexpress.com/Vue/Documentation/ApiReference/UI_Components/dxPieChart/Methods/ below:

Vue PieChart Methods | Vue Documentation

Postpones rendering that can negatively affect performance until the endUpdate() method is called.

The beginUpdate() and endUpdate() methods reduce the number of renders in cases where extra rendering can negatively affect performance.

Deselects the chart's selected series. The series is displayed in an initial style.

Disposes of all the resources allocated to the PieChart instance.

After calling this method, remove the DOM element associated with the UI component:

$("#myPieChart").dxPieChart("dispose");
$("#myPieChart").remove();

Use conditional rendering instead of this method:

<dx-pie-chart ...
    *ngIf="condition">
</dx-pie-chart>

Use conditional rendering instead of this method:

<template>
    <DxPieChart ...
        v-if="condition">
    </DxPieChart>
</template>

<script>
import DxPieChart from 'devextreme-vue/pie-chart';

export default {
    components: {
        DxPieChart
    }
}
</script>

Use conditional rendering instead of this method:

import React from 'react';

import PieChart from 'devextreme-react/pie-chart';

function DxPieChart(props) {
    if (!props.shouldRender) {
        return null;
    }

    return (
        <PieChart ... >    
        </PieChart>
    );
}

class App extends React.Component {
    render() {
        return (
            <DxPieChart shouldRender="condition" />
        );
    }
}
export default App;

Gets the root UI component element.

Refreshes the UI component after a call of the beginUpdate() method.

The beginUpdate() and endUpdate() methods reduce the number of renders in cases where extra rendering can negatively affect performance.

Exports the UI component.

The name of the file to which the UI component is about to be exported.

The file's format. One of 'PNG', 'PDF', 'JPEG', 'SVG' and 'GIF'.
PNG is used if the browser does not support exporting to the specified format.

Gets the radius of the doughnut hole in pixels. Applies only when the type is "doughnut" or "donut".

The radius of the doughnut hole.

Gets the instance of a UI component found using its DOM node.

The UI component's container.

The UI component's instance.

getInstance is a static method that the UI component class supports. The following code demonstrates how to get the PieChart instance found in an element with the myPieChart ID:

// Modular approach
import PieChart from "devextreme/viz/pie_chart";
...
let element = document.getElementById("myPieChart");
let instance = PieChart.getInstance(element) as PieChart;

// Non-modular approach
let element = document.getElementById("myPieChart");
let instance = DevExpress.viz.dxPieChart.getInstance(element);

• 3rd-Party Frameworks Integration API

Gets a series with a specific name.

seriesName: any

The series' name.

The Series object; null if nothing is found.

Gets a series with a specific index.

Gets the current UI component size.

The current UI component size.

Returns an object with the following fields.

• width
  The width of the UI component in pixels.
• height
  The height of the UI component in pixels.

Hides the loading indicator.

Although the loading indicator hides automatically once the UI component is ready, you can hide it from code at the required moment using this method.

• showLoadingIndicator()

Hides all UI component tooltips.

Use this method to hide all UI component tooltips programmatically.

Gets the UI component's instance. Use it to access other methods of the UI component.

This UI component's instance.

Detaches all event handlers from a single event.

The object for which this method is called.

Detaches a particular event handler from a single event.

The event's name.

The event's handler.

The object for which this method is called.

Subscribes to an event.

The event's name.

The event's handler.

The object for which this method is called.

Use this method to subscribe to one of the events listed in the Events section.

Subscribes to events.

Events with their handlers: { "eventName1": handler1, "eventName2": handler2, ...}

The object for which this method is called.

Use this method to subscribe to several events with one method call. Available events are listed in the Events section.

Gets the value of a single property.

The property's name or full path.

Return Value: any

This property's value.

Updates the value of a single property.

The property's name or full path.

optionValue: any

This property's new value.

Updates the values of several properties.

Options with their new values.

Opens the browser's print window.

Reloads data and repaints the UI component.

The UI component cannot track changes a third party makes in the data source. Call this method to update data in the UI component in this case.

Redraws the UI component.

Normally, the UI component redraws itself automatically after the browser window is resized. But on rare occasions, you may need to request the redrawing, for example, after the UI component's container is resized. For this purpose, call the render() method.

View on GitHub

Redraws the UI component.

You can call the render method without parameters after the size or visibility of the UI component container is changed. Alternatively, call the render method passing an object as the parameter. This object must contain the force field set to 'true'. In addition, you can use this object to specify whether or not to perform animation on redrawing with the animate field.

The following code sample illustrates the example of the object that can be passed to the render method.

var renderOptions = {
    force: true, // forces redrawing
    animate: false // redraws the UI component without animation
}

Resets a property to its default value.

Shows the loading indicator.

Gets the UI component's SVG markup.

The UI component's SVG markup.

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