This section describes the methods that can be used in code to manipulate the UI component.
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.
See AlsoDeselects the chart's selected series. The series is displayed in an initial style.
Disposes of all the resources allocated to the Chart instance.
jQueryAfter calling this method, remove the DOM element associated with the UI component:
$("#myChart").dxChart("dispose"); $("#myChart").remove();Angular
Use conditional rendering instead of this method:
<dx-chart ... *ngIf="condition"> </dx-chart>Vue
Use conditional rendering instead of this method:
<template> <DxChart ... v-if="condition"> </DxChart> </template> <script> import DxChart from 'devextreme-vue/chart'; export default { components: { DxChart } } </script>React
Use conditional rendering instead of this method:
import React from 'react'; import Chart from 'devextreme-react/chart'; function DxChart(props) { if (!props.shouldRender) { return null; } return ( <Chart ... > </Chart> ); } class App extends React.Component { render() { return ( <DxChart 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.
See AlsoExports the UI component.
Parameters: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 instance of a UI component found using its DOM node.
Parameters: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 Chart instance found in an element with the myChart
ID:
// Modular approach import Chart from "devextreme/viz/chart"; ... let element = document.getElementById("myChart"); let instance = Chart.getInstance(element) as Chart; // Non-modular approach let element = document.getElementById("myChart"); let instance = DevExpress.viz.dxChart.getInstance(element);See Also
Gets a series with a specific name.
Parameters: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.
Gets a value axis with the specified name.
A value axis with the specified name.
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.
See AlsoHides all UI component tooltips.
Use this method to hide all UI component tooltips programmatically.
See AlsoGets 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.
Parameters:The event's name.
The event's handler.
The object for which this method is called.
Subscribes to an event.
Parameters: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.
See AlsoSubscribes to events.
Parameters: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.
See AlsoGets the value of a single property.
Parameters:The property's name or full path.
Return Value: any
This property's value.
Updates the value of a single property.
Parameters:The property's name or full path.
optionValue: any
This property's new value.
Updates the values of several properties.
Parameters: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.
See AlsoRedraws 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.
See AlsoRedraws 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 }See Also
Resets a property to its default value.
Resets the visual ranges of both axes to the data range or the whole range if it is within the data range.
Shows the loading indicator.
Gets the UI component's SVG markup.
The UI component's SVG markup.
Sets the argument axis' start and end values.
Parameters:A new start value.
A new end value.
This method is kept for backward compatibility and its use is not recommended. Use the
Axisobject's
visualRange(visualRange)method instead.
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