Configuration

An object that specifies configuration options for the Bullet widget.

color

Specifies a color for the bullet bar.

Type:

String

Default Value: '#e8c267'

This option supports the following colors.

To specify a color for the target and zero level lines, use the targetColor option.

Show Example:
jQuery

In this example, the bullet bar color is changed to powderblue using the color option.


                                    

                                    

elementAttr

Specifies the attributes to be attached to the widget's root element.

Type:

Object

Default Value: {}

You can configure this option in an ASP.NET MVC Control as follows:

Razor C#
Razor VB
@(Html.DevExtreme().WidgetName()
    .ElementAttr("class", "class-name")
    // ===== or =====
    .ElementAttr(new {
        @id = "elementId",
        @class = "class-name"
    })
    // ===== or =====
    .ElementAttr(new Dictionary<string, object>() {
        { "id", "elementId" },
        { "class", "class-name" }
    })

)
@(Html.DevExtreme().WidgetName() _
    .ElementAttr("class", "class-name")
    ' ===== or =====
    .ElementAttr(New With {
        .id = "elementId",
        .class = "class-name"
    })
    ' ===== or =====
    .ElementAttr(New Dictionary(Of String, Object) From {
        { "id", "elementId" },
        { "class", "class-name" }
    })
)

endScaleValue

Specifies an end value for the invisible scale.

Type:

Number

Default Value: undefined
Cannot be used in themes.

The primary, target and zero values of the Bullet widget are held within a range. This range is represented by an invisible scale. To specify the boundary values of this scale, set the startScaleValue and endScaleValue options.

Specify the same start and end scale values for several bullets when you display them in a column so that they can be compared visually.

Show Example:
jQuery

In this example, the scale is defined using the startScaleValue and endScaleValue options.


                                    

                                    

margin

Generates space around the widget.

Type:

Object

WidgetMargin DevExtreme ChartJS

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.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null

onDrawn

A handler for the drawn event. Executed when the widget has finished drawing itself.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null
Cannot be used in themes.

onExported

A handler for the exported event. Executed after data from the widget is exported.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null

onExporting

A handler for the exporting event. Executed before data from the widget is exported.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

fileName:

String

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

cancel:

Boolean

Assign true to this field if you need to prevent exporting.

format:

String

The resulting file format. One of PNG, PDF, JPEG, SVG and GIF.

Default Value: null

onFileSaving

A handler for the fileSaving event. Executed before a file with exported data is saved on the user's local storage.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

fileName:

String

The name of the file to be saved.

format:

String

The format of the file to be saved.
Possible Values: 'PNG' | 'PDF' | 'JPEG' | 'SVG' | 'GIF'

data:

BLOB

Exported data as a BLOB.

cancel:

Boolean

Assign true to this field if you need to prevent the file from being saved.

Default Value: null

onIncidentOccurred

A handler for the incidentOccurred event. Executed when an error or warning appears in the widget.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

target: any

Information about the occurred incident.

Default Value: null

When an error or warning appears, the widget notifies you by passing a message to the browser console. This message contains the ID of the incident, a brief description, and a link to the Errors and Warnings section where further information about this incident can be found. However, you can handle errors and warnings in the way that you require. To do this, implement a callback function performing the required actions and assign it to the onIncidentOccurred option. Within this function, you can use information about the incident that occurred. This information can be accessed from the target field of the object passed to the callback function as a parameter. This information includes the following.

  • id
    Contains the ID of the incident. The full list of IDs can be found in the Errors and Warnings section.
  • type
    Contains the type of the incident. This field equals "error" for errors or "warning" for warnings.
  • args
    Contains the argument of the incident's message. The content of this field varies greatly, depending on the incident. For example, it may contain the name of the data source field that was not specified correctly, or the name of the option that was not set properly.
  • text
    Contains the text passed to the browser console. This text includes the content of the args field, if there are any.
  • widget
    Contains the name of the widget that produced the error or warning.
  • version
    Contains the currently used version of the DevExtreme library.

onInitialized

A handler for the initialized event. Executed only once, after the widget is initialized.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

Default Value: null

You cannot access elements in the widget because this handler is executed before they are ready. Use the onContentReady handler instead.

onOptionChanged

A handler for the optionChanged event. Executed after an option of the widget is changed.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

name:

String

The option's short name.

fullName:

String

The option's full name.

value: any

The option's new value.

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null

onTooltipHidden

A handler for the tooltipHidden event.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null
Cannot be used in themes.

The sparkline's tooltip becomes invisible when a user moves the mouse cursor outside of the widget.

When a tooltip is made hidden, you can perform specific actions by handling the tooltipHidden event. To do this, implement a handling function and assign it to this option. When implementing a handling function, use the object passed to it as its parameter. This object will provide you with the widget instance and its container.

onTooltipShown

A handler for the tooltipShown event.

Type:

function

Function parameters:
e:

Object

Information about the event.

Object structure:
component:

Object

element:

Element (jQuery or HTML)

The widget's container.

model:

Object

The model data. Available only if you use Knockout.

Default Value: null
Cannot be used in themes.

The sparkline's tooltip appears when a user hovers the mouse cursor over it.

When a tooltip appears, you can perform specific actions by handling the tooltipShown event. To do this, implement a handling function and assign it to this option. When implementing this function, use the object passed to it as its parameter. This object will provide you with the widget instance and its container.

pathModified

Notifies the widget that it is embedded into an HTML page that uses a tag modifying the path.

Type:

Boolean

Default Value: false
Cannot be used in themes.

If you place the widget on a page that uses a tag modifying the path (<base>, <iframe>, etc.), some of the widget elements may get mixed up or disappear. To solve this problem, set the pathModified option to true.

See Also

rtlEnabled

Switches the widget to a right-to-left representation.

Type:

Boolean

Default Value: false
Cannot be used in themes.

When this option is set to true, the widget text flows from right to left, and the layout of elements is reversed. To switch the entire application/site to the right-to-left representation, assign true to the rtlEnabled field of the object passed to the DevExpress.config(config) method.

JavaScript
DevExpress.config({
    rtlEnabled: true
});

showTarget

Specifies whether or not to show the target line.

Type:

Boolean

Default Value: true
Show Example:
jQuery

Toggle the check box below to show/hide the bullet target line.


                                    

                                    

showZeroLevel

Specifies whether or not to show the line indicating zero on the invisible scale.

Type:

Boolean

Default Value: true
Show Example:
jQuery

Toggle the check box below to show/hide the bullet zero level line.


                                    

                                    

size

Specifies the widget's size in pixels.

Type:

Object

Default Value: undefined

By default, the widget occupies the entire area of the container. If you need to set a particular size for the widget, different from the container's size, assign a height and width in pixels to height and width properties of the size object.

Using the size object, you can hide the widget. For this purpose, simply assign 0 to both the height and width of the widget.

NOTE
The size configuration object reserves space for the main widget elements, while displaying a tooltip may require extra space. To reserve the area around the widget for the tooltip, you can apply a margin to the widget's container.
Show Example:
jQuery

In this example, the size of the widget differs from the container size.


                                    

                                    

startScaleValue

Specifies a start value for the invisible scale.

Type:

Number

Default Value: 0
Cannot be used in themes.

The main, target and zero values of the Bullet widget are contained within a range. This range is represented by an invisible scale. To specify the boundary values of this scale, set the startScaleValue and endScaleValue options.

Specify the same start and end scale values for several bullets when you display them in a column so that they can be comparable visually.

Show Example:
jQuery

In this example, the scale is defined using the startScaleValue and endScaleValue options.


                                    

                                    

target

Specifies the value indicated by the target line.

Type:

Number

Default Value: 0
Cannot be used in themes.
Show Example:
jQuery

In this example, the target value is specified using the target option.


                                    

                                    

targetColor

Specifies a color for both the target and zero level lines.

Type:

String

Default Value: '#666666'

This option supports the following colors.

To specify a color for the bullet bar, use the color option.

Show Example:
jQuery

In this example, the color of the target and zero lines is changed to firebrick using the targetColor option.


                                    

                                    

targetWidth

Specifies the width of the target line.

Type:

Number

Default Value: 4

Show Example:
jQuery

In this example, the target line width is changed using the targetWidth option.


                                    

                                    

theme

Sets the name of the theme the widget uses.

Type:

String

Default Value: 'generic.light'
Accepted Values: 'generic.light' | 'generic.dark' | 'generic.contrast' | 'generic.carmine' | 'generic.darkmoon' | 'generic.softblue' | 'generic.darkviolet' | 'generic.greenmist' | 'android5.light' | 'ios7.default'

A theme is a widget configuration that gives the widget a distinctive appearance. Use can use one of the predefined themes or create a custom one. Changing the option values in the widget's configuration object overrides the theme's corresponding values.

NOTE
The following themes were deprecated or renamed: 'desktop', 'desktop-dark', 'android', 'android-holo-light', 'ios', 'win8', 'win8-white', 'win8.white', 'win8.black'. In new applications, use themes listed in the accepted values.

When using the widget as an ASP.NET MVC Control, specify this option using the VizTheme enum. This enum accepts the following values: GenericLight, GenericDark, GenericContrast, GenericCarmine, GenericDarkMoon, GenericSoftBlue, GenericDarkViolet, GenericGreenMist, Android5Light, IOS7Default, Win10Black and Win10White.

Show Example:
jQuery

In this example, a green theme is implemented on the base of the default theme. This theme is applied to the Bullet widget using the theme option.


                                    

                                    

tooltip

Configures the tooltip.

Type:

Object

A tooltip is a miniature rectangle displaying widget data. The tooltip appears when the end-user hovers the cursor over the widget. You can enable/disable the tooltip, change its appearance and format its text using fields of the tooltip configuration object.

NOTE
The tooltip is displayed outside the widget's container. If you plan to use the tooltip, make sure there is enough space around your widget to display it. For example, you can apply a margin to the widget's container to reserve the area around the widget for the tooltip.
Show Example:
jQuery

In this example, several tooltip options are altered. The tooltip is colored in 'seashell' using the color option. The main and target values are displayed in the 'fixedPoint' format with a precision of 2. In addition, tooltip font options are changed.


                                    

                                    

value

Specifies the primary value indicated by the bullet bar.

Type:

Number

Default Value: 0
Cannot be used in themes.
Show Example:
jQuery

In this example, you can change the value indicated by the bullet bar using the button below. If this value is greater than the target value, the bullet bar becomes red. Otherwise, it is colored in blue.