|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
#nullable enable
using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
using Microsoft.AspNetCore.Mvc.Routing;
using Microsoft.Extensions.DependencyInjection;
using Resources = Microsoft.AspNetCore.Mvc.ViewFeatures.Resources;
namespace Microsoft.AspNetCore.Mvc;
/// <summary>
/// A <see cref="RemoteAttributeBase"/> for razor page handler which configures Unobtrusive validation
/// to send an Ajax request to the web site. The invoked handler should return JSON indicating
/// whether the value is valid.
/// </summary>
/// <remarks>Does no server-side validation of the final form submission.</remarks>
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
public class PageRemoteAttribute : RemoteAttributeBase
{
/// <summary>
/// The handler name used when generating the URL where client should send a validation request.
/// </summary>
/// <remarks>
/// If not set the ambient value will be used when generating the URL.
/// </remarks>
public string? PageHandler { get; set; }
/// <summary>
/// The page name used when generating the URL where client should send a validation request.
/// </summary>
/// <remarks>
/// If not set the ambient value will be used when generating the URL.
/// </remarks>
public string? PageName { get; set; }
/// <inheritdoc />
protected override string GetUrl(ClientModelValidationContext context)
{
ArgumentNullException.ThrowIfNull(context);
var services = context.ActionContext.HttpContext.RequestServices;
var factory = services.GetRequiredService<IUrlHelperFactory>();
var urlHelper = factory.GetUrlHelper(context.ActionContext);
var url = urlHelper.Page(PageName, PageHandler, RouteData);
if (url == null)
{
throw new InvalidOperationException(Resources.RemoteAttribute_NoUrlFound);
}
return url;
}
}
|