如何在 ASP.NET Core MVC 中将视图转换为 PDF

namespace ViewToPdfMVCCoreSample.Models
{
    public class Person
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Title { get; set; }
        public string Description { get; set; }
    }
}

Namespace ViewToPdfMVCCoreSample.Models
	Public Class Person
		Public Property Id() As Integer
		Public Property Name() As String
		Public Property Title() As String
		Public Property Description() As String
	End Class
End Namespace

using IronPdf.Extensions.Mvc.Core;
using Microsoft.AspNetCore.Mvc;
using System.Diagnostics;
using ViewToPdfMVCCoreSample.Models;

namespace ViewToPdfMVCCoreSample.Controllers
{
    public class HomeController : Controller
    {
        private readonly ILogger<HomeController> _logger;
        private readonly IRazorViewRenderer _viewRenderService;
        private readonly IHttpContextAccessor _httpContextAccessor;
        public HomeController(ILogger<HomeController> logger, IRazorViewRenderer viewRenderService, IHttpContextAccessor httpContextAccessor)
        {
            _logger = logger;
            _viewRenderService = viewRenderService;
            _httpContextAccessor = httpContextAccessor;
        }

        public IActionResult Index()
        {
            return View();
        }

        public async Task<IActionResult> Persons()
        {

            var persons = new List<Person>
            {
            new Person { Name = "Alice", Title = "Mrs.", Description = "Software Engineer" },
            new Person { Name = "Bob", Title = "Mr.", Description = "Software Engineer" },
            new Person { Name = "Charlie", Title = "Mr.", Description = "Software Engineer" }
            };

            if (_httpContextAccessor.HttpContext.Request.Method == HttpMethod.Post.Method)
            {

                ChromePdfRenderer renderer = new ChromePdfRenderer();

                // Render View to PDF document
                PdfDocument pdf = renderer.RenderRazorViewToPdf(_viewRenderService, "Views/Home/Persons.cshtml", persons);

                Response.Headers.Add("Content-Disposition", "inline");

                // Output PDF document
                return File(pdf.BinaryData, "application/pdf", "viewToPdfMVCCore.pdf");
            }
            return View(persons);
        }

        public IActionResult Privacy()
        {
            return View();
        }

        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
        }
    }
}

Imports IronPdf.Extensions.Mvc.Core
Imports Microsoft.AspNetCore.Mvc
Imports System.Diagnostics
Imports ViewToPdfMVCCoreSample.Models

Namespace ViewToPdfMVCCoreSample.Controllers
	Public Class HomeController
		Inherits Controller

		Private ReadOnly _logger As ILogger(Of HomeController)
		Private ReadOnly _viewRenderService As IRazorViewRenderer
		Private ReadOnly _httpContextAccessor As IHttpContextAccessor
		Public Sub New(ByVal logger As ILogger(Of HomeController), ByVal viewRenderService As IRazorViewRenderer, ByVal httpContextAccessor As IHttpContextAccessor)
			_logger = logger
			_viewRenderService = viewRenderService
			_httpContextAccessor = httpContextAccessor
		End Sub

		Public Function Index() As IActionResult
			Return View()
		End Function

		Public Async Function Persons() As Task(Of IActionResult)

'INSTANT VB NOTE: The local variable persons was renamed since Visual Basic will not allow local variables with the same name as their enclosing function or property:
			Dim persons_Conflict = New List(Of Person) From {
				New Person With {
					.Name = "Alice",
					.Title = "Mrs.",
					.Description = "Software Engineer"
				},
				New Person With {
					.Name = "Bob",
					.Title = "Mr.",
					.Description = "Software Engineer"
				},
				New Person With {
					.Name = "Charlie",
					.Title = "Mr.",
					.Description = "Software Engineer"
				}
			}

			If _httpContextAccessor.HttpContext.Request.Method = HttpMethod.Post.Method Then

				Dim renderer As New ChromePdfRenderer()

				' Render View to PDF document
				Dim pdf As PdfDocument = renderer.RenderRazorViewToPdf(_viewRenderService, "Views/Home/Persons.cshtml", persons_Conflict)

				Response.Headers.Add("Content-Disposition", "inline")

				' Output PDF document
				Return File(pdf.BinaryData, "application/pdf", "viewToPdfMVCCore.pdf")
			End If
			Return View(persons_Conflict)
		End Function

		Public Function Privacy() As IActionResult
			Return View()
		End Function

		<ResponseCache(Duration := 0, Location := ResponseCacheLocation.None, NoStore := True)>
		Public Function [Error]() As IActionResult
			Return View(New ErrorViewModel With {.RequestId = If(Activity.Current?.Id, HttpContext.TraceIdentifier)})
		End Function
	End Class
End Namespace

@using (Html.BeginForm("Persons", "Home", FormMethod.Post))
{
    <input type="submit" value="Print Person" />
}

<header>
    <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
        <div class="container-fluid">
            <a class="navbar-brand" asp-area="" asp-controller="Home" asp-action="Index">ViewToPdfMVCCoreSample</a>
            <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target=".navbar-collapse" aria-controls="navbarSupportedContent"
                    aria-expanded="false" aria-label="Toggle navigation">
                <span class="navbar-toggler-icon"></span>
            </button>
            <div class="navbar-collapse collapse d-sm-inline-flex justify-content-between">
                <ul class="navbar-nav flex-grow-1">
                    <li class="nav-item">
                        <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Index">Home</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Persons">Person</a>
                    </li>
                    <li class="nav-item">
                        <a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
                    </li>
                </ul>
            </div>
        </div>
    </nav>
</header>

using IronPdf.Extensions.Mvc.Core;
using Microsoft.AspNetCore.Mvc.ViewFeatures;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddControllersWithViews();

builder.Services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();
builder.Services.AddSingleton<ITempDataProvider, CookieTempDataProvider>();

// Register IRazorViewRenderer here
builder.Services.AddSingleton<IRazorViewRenderer, RazorViewRenderer>();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Home/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.MapControllerRoute(
    name: "default",
    pattern: "{controller=Home}/{action=Index}/{id?}");

app.Run();

Imports IronPdf.Extensions.Mvc.Core
Imports Microsoft.AspNetCore.Mvc.ViewFeatures

Private builder = WebApplication.CreateBuilder(args)

' Add services to the container.
builder.Services.AddControllersWithViews()

builder.Services.AddSingleton(Of IHttpContextAccessor, HttpContextAccessor)()
builder.Services.AddSingleton(Of ITempDataProvider, CookieTempDataProvider)()

' Register IRazorViewRenderer here
builder.Services.AddSingleton(Of IRazorViewRenderer, RazorViewRenderer)()

Dim app = builder.Build()

' Configure the HTTP request pipeline.
If Not app.Environment.IsDevelopment() Then
	app.UseExceptionHandler("/Home/Error")
	' The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
	app.UseHsts()
End If

app.UseHttpsRedirection()
app.UseStaticFiles()

app.UseRouting()

app.UseAuthorization()

app.MapControllerRoute(name:= "default", pattern:= "{controller=Home}/{action=Index}/{id?}")

app.Run()