React TreeMap Methods
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- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
beginUpdate()
Prevents the widget from refreshing until the endUpdate() method is called.
The beginUpdate() and endUpdate() methods prevent the widget from excessive updates when you are changing multiple widget settings at once. After the beginUpdate() method is called, the widget does not update its UI until the endUpdate() method is called.
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- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
dispose()
After calling this method, remove the DOM element associated with the widget:
jQuery
$("#myTreeMap").dxTreeMap("dispose"); $("#myTreeMap").remove();
Angular
<dx-tree-map #treeMapVar id="myTreeMap"></dx-tree-map>
import { ..., ViewChild } from "@angular/core"; import { DxTreeMapComponent } from "devextreme-angular"; // ... export class AppComponent { @ViewChild("treeMapVar", { static: false }) treeMap: DxTreeMapComponent; // Prior to Angular 8 // @ViewChild("treeMapVar") treeMap: DxTreeMapComponent; removeTreeMap (e) { this.treeMap.instance.dispose(); document.getElementById("myTreeMap").remove(); } }
drillUp()
To learn how to implement the drill down functionality, see the drillDown() method description.
element()
An HTML element or a jQuery element when you use jQuery.
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endUpdate()
Refreshes the widget after a call of the beginUpdate() method.
Main article: beginUpdate()
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exportTo(fileName, format)
See Also
- DevExpress.viz.exportWidgets(widgetInstances, options)
- export
- print()
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
getCurrentNode()
The Node object.
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getDataSource()
Gets the DataSource instance.
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
- Data Layer - Overview
- Data Layer - DataSource Examples
getInstance(element)
getInstance is a static method that the widget class supports. The following code demonstrates how to get the TreeMap instance found in an element with the myTreeMap
ID:
// Modular approach import TreeMap from "devextreme/viz/tree_map"; ... let element = document.getElementById("myTreeMap"); let instance = TreeMap.getInstance(element) as TreeMap; // Non-modular approach let element = document.getElementById("myTreeMap"); let instance = DevExpress.viz.dxTreeMap.getInstance(element);
See Also
getRootNode()
The root node; described in the Node section.
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getSize()
Returns an object with the following fields.
- width
The width of the widget in pixels. - height
The height of the widget in pixels.
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- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
hideLoadingIndicator()
Although the loading indicator hides automatically once the widget is ready, you can hide it from code at the required moment using this method.
See Also
- showLoadingIndicator()
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
hideTooltip()
Hides the tooltip.
Use this and showTooltip() methods to change the visibility of the tooltip programmatically.
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instance()
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off(eventName)
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
off(eventName, eventHandler)
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
on(eventName, eventHandler)
Use this method to subscribe to one of the events listed in the Events section.
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- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
on(events)
Use this method to subscribe to several events with one method call. Available events are listed in the Events section.
See Also
- Handle Events: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option()
Gets all widget options.
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option(optionName)
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option(optionName, optionValue)
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
option(options)
See Also
- Get and Set Options
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
print()
See Also
- exportTo(fileName, format)
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
render()
Normally, the widget redraws itself automatically after the browser window is resized. But on rare occasions, you may need to request the redrawing, for example, after the widget's container is resized. For this purpose, call the render() method.
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resetDrillDown()
Calling this method makes the root level the current one. If you need to drill one level up or down, use the drillUp() method of the widget or the drillDown() method of a node.
See Also
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
showLoadingIndicator()
See Also
- hideLoadingIndicator()
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
svg()
See Also
- DevExpress.viz.getMarkup(widgetInstances)
- Call Methods: Angular | Vue | React | jQuery | AngularJS | Knockout | ASP.NET MVC 5 | ASP.NET Core
If you have technical questions, please create a support ticket in the DevExpress Support Center.