Blazor Badge

The Blazor Bootstrap Badge component shows the small count and labels.

Parameters

Name	Type	Default	Required	Description	Added Version
ChildContent	RenderFragment	null	✔️	Gets or sets the content to be rendered within the component.	1.7.0
Color	BadgeColor	BadgeColor.Secondary		Gets or sets the badge color.	1.7.0
IndicatorType	BadgeIndicatorType	BadgeIndicatorType.None		Gets or sets the badge indicator.	1.7.0
Placement	BadgePlacement	BadgePlacement.None		Gets or sets the badge placement.	1.7.0
Position	Position	Position.None		Gets or sets the badge position.	1.7.0
VisuallyHiddenText	string	null		Gets or sets the visually hidden text.	1.7.0

Examples

Basic usage

Badges scale to match the size of the immediate parent element by using relative font sizing and em units. As of now, badges no longer have focus or hover styles for links.

<h1>Example heading <Badge>New</Badge></h1>
<h2>Example heading <Badge>New</Badge></h2>
<h3>Example heading <Badge>New</Badge></h3>
<h4>Example heading <Badge>New</Badge></h4>
<h5>Example heading <Badge>New</Badge></h5>
<h6>Example heading <Badge>New</Badge></h6>

See demo here

Background colors

<Badge Color="BadgeColor.Primary" VisuallyHiddenText="Visually hidden text for Primary">Primary</Badge>
<Badge Color="BadgeColor.Secondary" VisuallyHiddenText="Visually hidden text for Secondary">Secondary</Badge>
<Badge Color="BadgeColor.Success" VisuallyHiddenText="Visually hidden text for Success">Success</Badge>
<Badge Color="BadgeColor.Danger" VisuallyHiddenText="Visually hidden text for Danger">Danger</Badge>
<Badge Color="BadgeColor.Warning" VisuallyHiddenText="Visually hidden text for Warning">Warning</Badge>
<Badge Color="BadgeColor.Info" VisuallyHiddenText="Visually hidden text for Info">Info</Badge>
<Badge Color="BadgeColor.Light" VisuallyHiddenText="Visually hidden text for Light">Light</Badge>
<Badge Color="BadgeColor.Dark" VisuallyHiddenText="Visually hidden text for Dark">Dark</Badge>

Conveying meaning to assistive technologies

Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g., the visible text) or is included through alternative means, such as additional text hidden with the VisuallyHiddenText parameter.

See demo here

Pill badges

Use the IndicatorType parameter to make badges more rounded with a larger border-radius.

<Badge Color="BadgeColor.Primary" IndicatorType="BadgeIndicatorType.RoundedPill">Primary</Badge>
<Badge Color="BadgeColor.Secondary" IndicatorType="BadgeIndicatorType.RoundedPill">Secondary</Badge>
<Badge Color="BadgeColor.Success" IndicatorType="BadgeIndicatorType.RoundedPill">Success</Badge>
<Badge Color="BadgeColor.Danger" IndicatorType="BadgeIndicatorType.RoundedPill">Danger</Badge>
<Badge Color="BadgeColor.Warning" IndicatorType="BadgeIndicatorType.RoundedPill">Warning</Badge>
<Badge Color="BadgeColor.Info" IndicatorType="BadgeIndicatorType.RoundedPill">Info</Badge>
<Badge Color="BadgeColor.Light" IndicatorType="BadgeIndicatorType.RoundedPill">Light</Badge>
<Badge Color="BadgeColor.Dark" IndicatorType="BadgeIndicatorType.RoundedPill">Dark</Badge>

See demo here

Buttons

Badges can be used as part of links or buttons to provide a counter.

<div class="mb-3">
    <Button Type="ButtonType.Button" Color="ButtonColor.Primary">
        Announcement <Badge Color="BadgeColor.Danger">2</Badge>
    </Button>
    <Button Type="ButtonType.Button" Color="ButtonColor.Primary">
        Notifications <Badge> 4</Badge>
    </Button>
</div>
<div class="mb-3">
    <Button Type="ButtonType.Button" Color="ButtonColor.Primary">
        Announcement <Badge Color="BadgeColor.Danger"><Icon Name="IconName.MegaphoneFill" /> 2</Badge>
    </Button>
    <Button Type="ButtonType.Button" Color="ButtonColor.Primary">
        Notifications <Badge><Icon Name="IconName.BellFill" /> 4</Badge>
    </Button>
</div>

See demo here

Positioned

Use Position and Placement parameters to position it in the corner of a link or button.

<div class="mb-3">
    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.TopLeft"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>

    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.TopCenter"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>

    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.TopRight"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>
</div>
<div class="mb-3">
    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.MiddleLeft"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>

    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.MiddleCenter"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>

    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.MiddleRight"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>
</div>
<div class="mb-3">
    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.BottomLeft"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>

    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.BottomCenter"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>

    <Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
        Inbox
        <Badge Color="BadgeColor.Danger"
               Position="Position.Absolute"
               Placement="BadgePlacement.BottomRight"
               IndicatorType="BadgeIndicatorType.RoundedPill"
               VisuallyHiddenText="unread messages">99+</Badge>
    </Button>
</div>

See demo here

Generic indicator

You can also replace the badge with a generic indicator without the count.

<Button Type="ButtonType.Button" Color="ButtonColor.Primary" Position="Position.Relative">
    Inbox
    <Badge Color="BadgeColor.Danger"
           Position="Position.Absolute"
           Placement="BadgePlacement.TopRight"
           IndicatorType="BadgeIndicatorType.RoundedPill"
           VisuallyHiddenText="unread messages"></Badge>
</Button>

See demo here