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guardrex merged 3 commits into from
Sep 22, 2026
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Hold XREF links for GA #37728

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Hold XREF links for GA
guardrex Sep 22, 2026
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guardrex Sep 22, 2026
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guardrex Sep 22, 2026
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7 changes: 6 additions & 1 deletion aspnetcore/blazor/forms/validation-advanced.md
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Expand Up @@ -138,8 +138,13 @@ To implement a business rule inside the validator component instead of accepting

The same component pattern supports asynchronous work:

<!-- UPDATE 11.0 - API Browser cross-ref

<xref:Microsoft.AspNetCore.Components.Forms.EditContext.RegisterAsyncFieldValidator%2A>
-->

* In an `OnValidationRequested` handler, call `e.AddAsyncValidator` to register form-level work. `EditForm` awaits it before invoking `OnValidSubmit` or `OnInvalidSubmit`.
* In an `OnFieldChanged` handler, call <xref:Microsoft.AspNetCore.Components.Forms.EditContext.RegisterAsyncFieldValidator%2A> to start validation for that field. Starting another validation for the same field supersedes and cancels the previous operation.
* In an `OnFieldChanged` handler, call `EditContext.RegisterAsyncFieldValidator` to start validation for that field. Starting another validation for the same field supersedes and cancels the previous operation.

For form-level asynchronous validation:

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7 changes: 6 additions & 1 deletion aspnetcore/blazor/forms/validation.md
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Expand Up @@ -337,7 +337,12 @@ Static SSR doesn't provide live .NET field validation between requests.

:::moniker range=">= aspnetcore-11.0"

For asynchronous full-form validation, call `e.AddAsyncValidator` from an `OnValidationRequested` handler. For asynchronous field validation in an interactive form, call <xref:Microsoft.AspNetCore.Components.Forms.EditContext.RegisterAsyncFieldValidator%2A> from an `OnFieldChanged` handler. A new asynchronous validation for the same field supersedes and cancels the previous one.
<!-- UPDATE 11.0 - API Browser cross-ref

<xref:Microsoft.AspNetCore.Components.Forms.EditContext.RegisterAsyncFieldValidator%2A>
-->

For asynchronous full-form validation, call `e.AddAsyncValidator` from an `OnValidationRequested` handler. For asynchronous field validation in an interactive form, call `EditContext.RegisterAsyncFieldValidator` from an `OnFieldChanged` handler. A new asynchronous validation for the same field supersedes and cancels the previous one.

For model-based asynchronous validation attributes, see <xref:fundamentals/validation#asynchronous-validation-support>. For a complete reusable validator component, see <xref:blazor/forms/validation-advanced>.

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