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// 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.Controllers;
using Microsoft.AspNetCore.Mvc.Infrastructure;
using Microsoft.AspNetCore.Mvc.ViewEngines;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
using Microsoft.Extensions.DependencyInjection;
namespace Microsoft.AspNetCore.Mvc;
/// <summary>
/// Represents an <see cref="ActionResult"/> that renders a view to the response.
/// </summary>
public class ViewResult : ActionResult, IStatusCodeActionResult
{
/// <summary>
/// Gets or sets the HTTP status code.
/// </summary>
public int? StatusCode { get; set; }
/// <summary>
/// Gets or sets the name or path of the view that is rendered to the response.
/// </summary>
/// <remarks>
/// When <c>null</c>, defaults to <see cref="ControllerActionDescriptor.ActionName"/>.
/// </remarks>
public string? ViewName { get; set; }
/// <summary>
/// Gets the view data model.
/// </summary>
public object? Model => ViewData?.Model;
/// <summary>
/// Gets or sets the <see cref="ViewDataDictionary"/> for this result.
/// </summary>
public ViewDataDictionary ViewData { get; set; } = default!;
/// <summary>
/// Gets or sets the <see cref="ITempDataDictionary"/> for this result.
/// </summary>
public ITempDataDictionary TempData { get; set; } = default!;
/// <summary>
/// Gets or sets the <see cref="IViewEngine"/> used to locate views.
/// </summary>
/// <remarks>When <c>null</c>, an instance of <see cref="ICompositeViewEngine"/> from
/// <c>ActionContext.HttpContext.RequestServices</c> is used.</remarks>
public IViewEngine? ViewEngine { get; set; }
/// <summary>
/// Gets or sets the Content-Type header for the response.
/// </summary>
public string? ContentType { get; set; }
/// <inheritdoc />
public override async Task ExecuteResultAsync(ActionContext context)
{
ArgumentNullException.ThrowIfNull(context);
var executor = context.HttpContext.RequestServices.GetService<IActionResultExecutor<ViewResult>>();
if (executor == null)
{
throw new InvalidOperationException(Mvc.Core.Resources.FormatUnableToFindServices(
nameof(IServiceCollection),
"AddControllersWithViews()",
"ConfigureServices(...)"));
}
await executor.ExecuteAsync(context, this);
}
}
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