Angular LinearGauge API

The LinearGauge is a widget that indicates values on a linear numeric scale.

import { DxLinearGaugeModule } from "devextreme-angular"

DevExtreme widgets are integrated with many popular libraries and frameworks. See the Installation section (for JavaScript libraries) or the Prerequisites and Installation section (for ASP.NET MVC framework) to find details on setting up DevExtreme with a particular library or framework.

The following code shows how to create the LinearGauge widget using every supported library and framework. For more details on working with widgets in these libraries and frameworks, see the Widget Basics topic for jQuery, Angular, AngularJS, Knockout or ASP.NET MVC.

jQuery

JavaScript

HTML

$(function () {
    $("#linearGauge").dxLinearGauge({
        scale: {
            startValue: 50,
            endValue: 150
        },    
        rangeContainer: {
            ranges: [
                { startValue: 50, endValue: 90 },
                { startValue: 90, endValue: 130 },
                { startValue: 130, endValue: 150 }
            ]
        },
        value: 105
    });
});

<div id="linearGauge"></div>

Angular

HTML

TypeScript

<dx-linear-gauge [value]="105">
    <dxo-scale
        [startValue]="50"
        [endValue]="150">
    </dxo-scale>
    <dxo-range-container>
        <dxi-range 
            [startValue]="50"
            [endValue]="90">
        </dxi-range>
        <dxi-range 
            [startValue]="90"
            [endValue]="130">
        </dxi-range>
        <dxi-range 
            [startValue]="130"
            [endValue]="150">
        </dxi-range>
    </dxo-range-container>
</dx-linear-gauge>

import { DxLinearGaugeModule } from 'devextreme-angular';
// ...
export class AppComponent {
    // ...
}
@NgModule({
    imports: [
        // ...
        DxLinearGaugeModule
    ],
    // ...
})

AngularJS

HTML

<div dx-linear-gauge="{
    scale: {
        startValue: 50,
        endValue: 150
    },    
    rangeContainer: {
        ranges: [
            { startValue: 50, endValue: 90 },
            { startValue: 90, endValue: 130 },
            { startValue: 130, endValue: 150 }
        ]
    },
    value: 105
}"></div>

Knockout

HTML

<div data-bind="dxLinearGauge: {
    scale: {
        startValue: 50,
        endValue: 150
    },    
    rangeContainer: {
        ranges: [
            { startValue: 50, endValue: 90 },
            { startValue: 90, endValue: 130 },
            { startValue: 130, endValue: 150 }
        ]
    },
    value: 105
}"></div>

ASP.NET MVC Controls

Razor C#

Razor VB

@(Html.DevExtreme().LinearGauge()
    .ID("linearGauge")
    .Scale(scale => scale
        .StartValue(50)
        .EndValue(50)
    )
    .RangeContainer(rc => rc
        .Ranges(ranges => {
            ranges.Add().StartValue(50).EndValue(90);
            ranges.Add().StartValue(90).EndValue(130);
            ranges.Add().StartValue(130).EndValue(150);
        })
    )
)

@(Html.DevExtreme().LinearGauge() _
    .ID("linearGauge") _
    .Scale(Sub(scale)
        scale.StartValue(50) _
                .EndValue(50)
    End Sub) _
    .RangeContainer(Sub(rc)
        rc.Ranges(Sub(ranges)
            ranges.Add().StartValue(50).EndValue(90)
            ranges.Add().StartValue(90).EndValue(130)
            ranges.Add().StartValue(130).EndValue(150)
        End Sub)
    End Sub)
)

View Demo Watch Video

Configuration

An object that defines configuration options for the LinearGauge widget.

Name	Description
animation	Specifies animation options.
containerBackgroundColor	Specifies the color of the parent page element.
elementAttr	Specifies the attributes to be attached to the widget's root element.
export	Configures the exporting and printing features.
geometry	Specifies the options required to set the geometry of the LinearGauge widget.
loadingIndicator	Configures the loading indicator.
margin	Generates space around the widget.
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.
onDrawn	A function that is executed when the widget's rendering has finished.
onExported	A handler for the exported event. Executed after data from the widget is exported.
onExporting	A handler for the exporting event. Executed before data from the widget is exported.
onFileSaving	A handler for the fileSaving event. Executed before a file with exported data is saved on the user's local storage.
onIncidentOccurred	A handler for the incidentOccurred event. Executed when an error or warning appears in the widget.
onInitialized	A handler for the initialized event. Executed only once, after the widget is initialized.
onOptionChanged	A handler for the optionChanged event. Executed after an option of the widget is changed.
onTooltipHidden	A handler for the tooltipHidden event.
onTooltipShown	A handler for the tooltipShown event.
pathModified	Notifies the widget that it is embedded into an HTML page that uses a tag modifying the path.
rangeContainer	Specifies gauge range container options.
redrawOnResize	Specifies whether to redraw the widget when the size of the parent browser window changes or a mobile device rotates.
rtlEnabled	Switches the widget to a right-to-left representation.
scale	Specifies the gauge's scale options.
size	Specifies the widget's size in pixels.
subvalueIndicator	Specifies the appearance options of subvalue indicators.
subvalues	Specifies a set of subvalues to be designated by the subvalue indicators.
theme	Sets the name of the theme the widget uses.
title	Configures the widget's title.
tooltip	Configures tooltips.
value	Specifies the main value on a gauge.
valueIndicator	Specifies the appearance options of the value indicator.

Methods

This section describes methods that can be used to manipulate the widget.

Name	Description
beginUpdate()	Prevents the widget from refreshing until the endUpdate() method is called.
dispose()	Disposes of all the resources allocated to the LinearGauge instance.
element()	Gets the root widget element.
endUpdate()	Refreshes the widget after a call of the beginUpdate() method.
exportTo(fileName, format)	Exports the widget.
getInstance(element)	Gets the instance of a widget found using its DOM node.
getSize()	Gets the current widget size.
hideLoadingIndicator()	Hides the loading indicator.
instance()	Gets the widget's instance. Use it to access other methods of the widget.
off(eventName)	Detaches all event handlers from a single event.
off(eventName, eventHandler)	Detaches a particular event handler from a single event.
on(eventName, eventHandler)	Subscribes to an event.
on(events)	Subscribes to events.
option()	Gets all widget options.
option(optionName)	Gets the value of a single option.
option(optionName, optionValue)	Updates the value of a single option.
option(options)	Updates the values of several options.
print()	Opens the browser's print window.
render()	Redraws the widget.
showLoadingIndicator()	Shows the loading indicator.
subvalues()	Gets subvalues.
subvalues(subvalues)	Updates subvalues.
svg()	Gets the widget's SVG markup.
value()	Gets the main value.
value(value)	Updates the main value.

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.
drawn	Raised when the widget's rendering has finished.
exported	Raised after data from the widget is exported.
exporting	Raised before data from the widget is exported.
fileSaving	Raised before a file with exported data is saved on the user's local storage.
incidentOccurred	Raised when an error or warning appears in the widget.
initialized	Raised only once, after the widget is initialized.
optionChanged	Raised after a widget option is changed.
tooltipHidden	Fires when an indicator's tooltip becomes hidden.
tooltipShown	Fires when an indicator's tooltip appears.

Indicator Types

This section lists objects that define options used to configure value and subvalue indicators of specific types.

Name	Description
Circle	An object that defines a gauge indicator of the circle type.
RangeBar	An object that defines a gauge indicator of the rangeBar type.
Rectangle	An object defining a gauge indicator of the rectangle type.
Rhombus	An object defining a gauge indicator of the rhombus type.
TextCloud	An object that defines a gauge indicator of the textCloud type.
TriangleMarker	An object that defines a gauge indicator of the triangleMarker type.

View Demo

Angular LinearGauge API

jQuery

Angular

AngularJS

Knockout

ASP.NET MVC Controls

See Also

Configuration

Methods

Events

See Also

Indicator Types