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Remove extra moniker-range (#21409)

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Luke Latham 2021-02-02 07:22:25 -06:00 committed by GitHub
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aspnetcore/mvc/models/validation.md
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@ -8,7 +8,6 @@ ms.date: 12/15/2019
no-loc: [appsettings.json, "ASP.NET Core Identity", cookie, Cookie, Blazor, "Blazor Server", "Blazor WebAssembly", "Identity", "Let's Encrypt", Razor, SignalR]
uid: mvc/models/validation
---
# Model validation in ASP.NET Core MVC and Razor Pages
::: moniker range=">= aspnetcore-3.0"
@ -76,8 +75,6 @@ When applied to a `Name` property, the error message created by the preceding co
To find out which parameters are passed to `String.Format` for a particular attribute's error message, see the [DataAnnotations source code](https://github.com/dotnet/runtime/tree/master/src/libraries/System.ComponentModel.Annotations/src/System/ComponentModel/DataAnnotations).
::: moniker range=">= aspnetcore-3.0"
## Non-nullable reference types and [Required] attribute
The validation system treats non-nullable parameters or bound properties as if they had a `[Required]` attribute. By [enabling `Nullable` contexts](/dotnet/csharp/nullable-references#nullable-contexts), MVC implicitly starts validating non-nullable properties or parameters as if they had been attributed with the `[Required]` attribute. Consider the following code:
@ -361,7 +358,7 @@ As noted earlier, [Tag Helpers](xref:mvc/views/tag-helpers/intro) and [HTML help
This method of rendering `data-` attributes in HTML is used by the `ClassicMovie` attribute in the sample app. To add client validation by using this method:
1. Create an attribute adapter class for the custom validation attribute. Derive the class from [AttributeAdapterBase\<T>](/dotnet/api/microsoft.aspnetcore.mvc.dataannotations.attributeadapterbase-1?view=aspnetcore-2.2). Create an `AddValidation` method that adds `data-` attributes to the rendered output, as shown in this example:
1. Create an attribute adapter class for the custom validation attribute. Derive the class from <xref:Microsoft.AspNetCore.Mvc.DataAnnotations.AttributeAdapterBase%601>. Create an `AddValidation` method that adds `data-` attributes to the rendered output, as shown in this example:
[!code-csharp[](validation/samples/3.x/ValidationSample/Validation/ClassicMovieAttributeAdapter.cs?name=snippet_Class)]
@ -732,7 +729,7 @@ As noted earlier, [Tag Helpers](xref:mvc/views/tag-helpers/intro) and [HTML help
This method of rendering `data-` attributes in HTML is used by the `ClassicMovie` attribute in the sample app. To add client validation by using this method:
1. Create an attribute adapter class for the custom validation attribute. Derive the class from [AttributeAdapterBase\<T>](/dotnet/api/microsoft.aspnetcore.mvc.dataannotations.attributeadapterbase-1?view=aspnetcore-2.2). Create an `AddValidation` method that adds `data-` attributes to the rendered output, as shown in this example:
1. Create an attribute adapter class for the custom validation attribute. Derive the class from <xref:Microsoft.AspNetCore.Mvc.DataAnnotations.AttributeAdapterBase%601>. Create an `AddValidation` method that adds `data-` attributes to the rendered output, as shown in this example:
[!code-csharp[](validation/samples/2.x/ValidationSample/Attributes/ClassicMovieAttributeAdapter.cs?name=snippet_ClassicMovieAttributeAdapter)]