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Blazor Custom Route Constraints

affected-fewThis issue impacts only small number of customersThis issue impacts only small number of customers

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-builtin-componentsFeatures related to the built in components we ship or could ship in the futureFeatures related to the built in components we ship or could ship in the future

feature-routing

Pillar: Complete Blazor Web

severity-minorThis label is used by an internal toolThis label is used by an internal tool

Status: Open.

Feature

#28938 In dotnet/aspnetcore;

· GravlLift opened on Dec 30, 2020

Nested Routing In Blazor

affected-mediumThis issue impacts approximately half of our customersThis issue impacts approximately half of our customers

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-builtin-componentsFeatures related to the built in components we ship or could ship in the futureFeatures related to the built in components we ship or could ship in the future

needs-prototype

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

severity-majorThis label is used by an internal toolThis label is used by an internal tool

Status: Open.

Feature

#11212 In dotnet/aspnetcore;

· AmarjeetBanwait opened on Jun 14, 2019

[Blazor] Support serializing render fragments from SSR

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

feature-blazor-ssr

Pillar: Complete Blazor Web

Priority:1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

triaged

Status: Open.

#52768 In dotnet/aspnetcore;

· javiercn opened on Dec 12, 2023

[Blazor] Framework support for per-page JavaScript logic

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-jsinteropThis issue is related to JSInterop in BlazorThis issue is related to JSInterop in Blazor

Pillar: Complete Blazor Web

Priority:1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

Status: Open.

Feature

#52273 In dotnet/aspnetcore;

· MackinnonBuck opened on Nov 22, 2023

[Blazor] Built-in components improvements

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

Pillar: Dev Experience

Status: Open.

#58819 In dotnet/aspnetcore;

· javiercn opened on Nov 6, 2024

QuickGrid support for static server-side rendering (static SSR)

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-component-modelAny feature that affects the component model for Blazor (Parameters, Rendering, Lifecycle, etc)Any feature that affects the component model for Blazor (Parameters, Rendering, Lifecycle, etc)

feature-blazor-quickgrid

Pillar: Complete Blazor Web

Priority:1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

Status: Open.

Feature

#51249 In dotnet/aspnetcore;

· danroth27 opened on Oct 10, 2023

[Blazor] Cascading Parameter that transfers across render boundaries

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

copilot-candidate

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

Pillar: Complete Blazor Web

Priority:1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

Status: Open.

Feature

#51969 In dotnet/aspnetcore;

· javiercn opened on Nov 9, 2023

Introduce the concept of state transitions in Blazor to allow for e.g. animations

affected-fewThis issue impacts only small number of customersThis issue impacts only small number of customers

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-builtin-componentsFeatures related to the built in components we ship or could ship in the futureFeatures related to the built in components we ship or could ship in the future

needs-prototype

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

severity-majorThis label is used by an internal toolThis label is used by an internal tool

Status: Open.

Feature

#10389 In dotnet/aspnetcore;

· tomRedox opened on May 20, 2019

ScrollToItemAsync(int itemIndex) design for Virtualization

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

design-proposalThis issue represents a design proposal for a different issue, linked in the descriptionThis issue represents a design proposal for a different issue, linked in the description

feature-blazor-virtualizationThis issue is related to the Blazor Virtualize componentThis issue is related to the Blazor Virtualize component

feature-request

Status: Open.

Feature

#66328 In dotnet/aspnetcore;

· ilonatommy opened on Apr 15, 2026

[API Proposal] Async form validation support in Blazor

api-proposal

api-ready-for-reviewAPI is ready for formal API review - https://github.com/dotnet/apireviewsAPI is ready for formal API review - https://github.com/dotnet/apireviews

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

feature-validationIssues related to model validation in minimal and controller-based APIsIssues related to model validation in minimal and controller-based APIs

Status: Open.

#66381 In dotnet/aspnetcore;

· oroztocil opened on Apr 20, 2026

[API Proposal] Localization support for Microsoft.Extensions.Validation

api-proposal

api-ready-for-reviewAPI is ready for formal API review - https://github.com/dotnet/apireviewsAPI is ready for formal API review - https://github.com/dotnet/apireviews

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

area-minimalIncludes minimal APIs, endpoint filters, parameter binding, request delegate generator etcIncludes minimal APIs, endpoint filters, parameter binding, request delegate generator etc

feature-validationIssues related to model validation in minimal and controller-based APIsIssues related to model validation in minimal and controller-based APIs

Status: Open.

#66392 In dotnet/aspnetcore;

· oroztocil opened on Apr 20, 2026

Add a Blazor Cache component

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

Status: Open.

Feature

#55520 In dotnet/aspnetcore;

· danroth27 opened on May 3, 2024

Blazor SessionData

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

Status: Open.

#64422 In dotnet/aspnetcore;

· javiercn opened on Nov 18, 2025

Incomplete display name resolution in Microsoft.Extensions.Validation

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

area-minimalIncludes minimal APIs, endpoint filters, parameter binding, request delegate generator etcIncludes minimal APIs, endpoint filters, parameter binding, request delegate generator etc

feature-validationIssues related to model validation in minimal and controller-based APIsIssues related to model validation in minimal and controller-based APIs

Status: Open.

Feature

#65647 In dotnet/aspnetcore;

· oroztocil opened on Mar 4, 2026

[aspnetcore 10] minimal api validation - localization

area-minimalIncludes minimal APIs, endpoint filters, parameter binding, request delegate generator etcIncludes minimal APIs, endpoint filters, parameter binding, request delegate generator etc

feature-validationIssues related to model validation in minimal and controller-based APIsIssues related to model validation in minimal and controller-based APIs

Status: Open.

#64626 In dotnet/aspnetcore;

· mkalinski93 opened on Dec 3, 2025

[Blazor] Data annotations localization support

affected-fewThis issue impacts only small number of customersThis issue impacts only small number of customers

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-server

feature-localization

feature-validationIssues related to model validation in minimal and controller-based APIsIssues related to model validation in minimal and controller-based APIs

Pillar: Technical Debt

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

severity-majorThis label is used by an internal toolThis label is used by an internal tool

triaged

Status: Open.

Feature

#12158 In dotnet/aspnetcore;

· qw-34 opened on Jul 14, 2019

Blazor Form Validation Enhancements

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

Status: Open.

Epic

#64892 In dotnet/aspnetcore;

· javiercn opened on Dec 29, 2025

Blazor form async validation enhancements

affected-mediumThis issue impacts approximately half of our customersThis issue impacts approximately half of our customers

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-builtin-componentsFeatures related to the built in components we ship or could ship in the futureFeatures related to the built in components we ship or could ship in the future

feature-blazor-form-validationThis issue is related to forms validation in BlazorThis issue is related to forms validation in Blazor

Pillar: Complete Blazor Web

severity-minorThis label is used by an internal toolThis label is used by an internal tool

Status: Open.

Feature

#7680 In dotnet/aspnetcore;

· SteveSandersonMS opened on Feb 18, 2019

Create server rendered forms with client validation using Blazor without a circuit

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-form-validationThis issue is related to forms validation in BlazorThis issue is related to forms validation in Blazor

Pillar: Complete Blazor Web

Status: Open.

Feature

#51040 In dotnet/aspnetcore;

· danroth27 opened on Sep 30, 2023

SupplyParameterFromSession support for Blazor

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

Status: Open (in progress).

dotnet/aspnetcorenumber 65184

#65184 In dotnet/aspnetcore;

· dariatiurina opened on Jan 22, 2026

Automatically pause circuit on inactivity

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

Status: Open.

#64886 In dotnet/aspnetcore;

· javiercn opened on Dec 29, 2025

Virtualize component Row Index Enhancements (API to scroll to item)

affected-fewThis issue impacts only small number of customersThis issue impacts only small number of customers

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-virtualizationThis issue is related to the Blazor Virtualize componentThis issue is related to the Blazor Virtualize component

Pillar: Complete Blazor Web

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

severity-blockingThis label is used by an internal toolThis label is used by an internal tool

Status: Open.

Feature

#26943 In dotnet/aspnetcore;

· bancroftway opened on Oct 15, 2020

Virtualize support for controlling scroll position

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

feature-blazor-virtualizationThis issue is related to the Blazor Virtualize componentThis issue is related to the Blazor Virtualize component

Status: Open.

#64889 In dotnet/aspnetcore;

· javiercn opened on Dec 29, 2025

Blazor: bind-value-oninput or bind does not work with contenteditable divs

affected-fewThis issue impacts only small number of customersThis issue impacts only small number of customers

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-blazor-component-modelAny feature that affects the component model for Blazor (Parameters, Rendering, Lifecycle, etc)Any feature that affects the component model for Blazor (Parameters, Rendering, Lifecycle, etc)

feature-razor.language

help wantedUp for grabs. We would accept a PR to help resolve this issueUp for grabs. We would accept a PR to help resolve this issue

Pillar: Complete Blazor Web

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

severity-nice-to-haveThis label is used by an internal toolThis label is used by an internal tool

Status: Open.

Feature

#9974 In dotnet/aspnetcore;

· PirasannaRavi opened on May 4, 2019

Revisit hot reload browser refresh script injection

area-blazorIncludes: Blazor, Razor ComponentsIncludes: Blazor, Razor Components

enhancementThis issue represents an ask for new feature or an enhancement to an existing oneThis issue represents an ask for new feature or an enhancement to an existing one

feature-hot-reloadThis issue is related to the Hot Reload feaatureThis issue is related to the Hot Reload feaature

Pillar: Dev Experience

Priority:1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

triaged

Status: Open.

Feature

#45213 In dotnet/aspnetcore;

· MackinnonBuck opened on Nov 21, 2022