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Adrien Clerbois c824a3c8b6 Add fluentui-blazor skill

Add a new skill for using the Microsoft Fluent UI Blazor component library (Microsoft.FluentUI.AspNetCore.Components v4) in Blazor applications. Includes guidance on setup, component usage, theming, data grids, layout and navigation.

2026-02-16 22:43:41 +01:00

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Setup and Configuration

NuGet Packages

Package	Purpose
`Microsoft.FluentUI.AspNetCore.Components`	Core component library (required)
`Microsoft.FluentUI.AspNetCore.Components.Icons`	Icon package (optional, recommended)
`Microsoft.FluentUI.AspNetCore.Components.Emojis`	Emoji package (optional)
`Microsoft.FluentUI.AspNetCore.Components.DataGrid.EntityFrameworkAdapter`	EF Core adapter for DataGrid (optional)
`Microsoft.FluentUI.AspNetCore.Components.DataGrid.ODataAdapter`	OData adapter for DataGrid (optional)

Program.cs Registration

builder.Services.AddFluentUIComponents();

Configuration Options (LibraryConfiguration)

Property	Type	Default	Notes
`UseTooltipServiceProvider`	`bool`	`true`	Registers `ITooltipService`. If true, you MUST add `<FluentTooltipProvider>` to layout
`RequiredLabel`	`MarkupString`	Red `*`	Custom markup for required field indicators
`HideTooltipOnCursorLeave`	`bool`	`false`	Close tooltip when cursor leaves both anchor and tooltip
`ServiceLifetime`	`ServiceLifetime`	`Scoped`	Only `Scoped` or `Singleton`. `Transient` throws!
`ValidateClassNames`	`bool`	`true`	Validates CSS class names against `^-?[_a-zA-Z]+[_a-zA-Z0-9-]*$`
`CollocatedJavaScriptQueryString`	`Func<string, string>?`	`v={version}`	Cache-busting for JS files

ServiceLifetime by hosting model

Hosting model	ServiceLifetime
Blazor Server	`Scoped` (default)
Blazor WebAssembly Standalone	`Singleton`
Blazor Web App (Interactive)	`Scoped` (default)
Blazor Hybrid (MAUI)	`Singleton`

MainLayout.razor Template

@inherits LayoutComponentBase

<FluentLayout>
    <FluentHeader Height="50">
        My App
    </FluentHeader>

    <FluentStack Orientation="Orientation.Horizontal" HorizontalGap="0" Style="height: 100%;">
        <FluentNavMenu Width="250" Collapsible="true" Title="Navigation">
            <FluentNavLink Href="/" Icon="@(Icons.Regular.Size20.Home)" Match="NavLinkMatch.All">Home</FluentNavLink>
            <FluentNavLink Href="/counter" Icon="@(Icons.Regular.Size20.NumberSymbol)">Counter</FluentNavLink>
            <FluentNavGroup Title="Settings" Icon="@(Icons.Regular.Size20.Settings)">
                <FluentNavLink Href="/settings/general">General</FluentNavLink>
                <FluentNavLink Href="/settings/profile">Profile</FluentNavLink>
            </FluentNavGroup>
        </FluentNavMenu>

        <FluentBodyContent>
            <FluentStack Orientation="Orientation.Vertical" Style="padding: 1rem;">
                @Body
            </FluentStack>
        </FluentBodyContent>
    </FluentStack>
</FluentLayout>

@* Required providers — place after FluentLayout *@
<FluentToastProvider />
<FluentDialogProvider />
<FluentMessageBarProvider />
<FluentTooltipProvider />
<FluentKeyCodeProvider />

@* Theme — place at root *@
<FluentDesignTheme Mode="DesignThemeModes.System"
                   OfficeColor="OfficeColor.Teams"
                   StorageName="mytheme" />

Or use the convenience component:

<FluentMainLayout Header="@header"
                  NavMenuContent="@navMenu"
                  Body="@body"
                  HeaderHeight="50"
                  NavMenuWidth="250"
                  NavMenuTitle="Navigation" />

@code {
    private RenderFragment header = @<span>My App</span>;
    private RenderFragment navMenu = @<div>
        <FluentNavLink Href="/">Home</FluentNavLink>
    </div>;
    private RenderFragment body = @<div>@Body</div>;
}

_Imports.razor

Add this to your _Imports.razor:

@using Microsoft.FluentUI.AspNetCore.Components
@using Icons = Microsoft.FluentUI.AspNetCore.Components.Icons

Static Web Assets

No manual <link> or <script> tags are needed. The library uses:

CSS: reboot.css (normalization) + component-scoped CSS — auto-loaded via static web assets
JS: lib.module.js — auto-loaded via Blazor's JS initializer system
Component-specific JS (e.g. DataGrid, Autocomplete) — lazy-loaded on demand

All served from _content/Microsoft.FluentUI.AspNetCore.Components/.

Services Registered

Services automatically registered by AddFluentUIComponents():

Service	Implementation	Purpose
`GlobalState`	`GlobalState`	Shared application state
`IToastService`	`ToastService`	Toast notifications (needs `FluentToastProvider`)
`IDialogService`	`DialogService`	Dialogs and panels (needs `FluentDialogProvider`)
`IMessageService`	`MessageService`	Message bars (needs `FluentMessageBarProvider`)
`IKeyCodeService`	`KeyCodeService`	Keyboard shortcuts (needs `FluentKeyCodeProvider`)
`IMenuService`	`MenuService`	Context menus
`ITooltipService`	`TooltipService`	Tooltips (needs `FluentTooltipProvider`, opt-in via `UseTooltipServiceProvider`)

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