如何在 C## 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()
        {
            // Example list of 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" }
            };

            // Check if the request method is POST
            if (_httpContextAccessor.HttpContext.Request.Method == HttpMethod.Post.Method)
            {
                // Create a new PDF renderer
                ChromePdfRenderer renderer = new ChromePdfRenderer();

                // Configure rendering options for better output
                renderer.RenderingOptions.MarginTop = 40;
                renderer.RenderingOptions.MarginBottom = 40;
                renderer.RenderingOptions.PaperOrientation = IronPdf.Rendering.PdfPaperOrientation.Portrait;
                renderer.RenderingOptions.Title = "Persons Report";

                // 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(logger As ILogger(Of HomeController), viewRenderService As IRazorViewRenderer, 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)
            ' Example list of persons
            Dim persons = 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"}
            }

            ' Check if the request method is POST
            If _httpContextAccessor.HttpContext.Request.Method = HttpMethod.Post.Method Then
                ' Create a new PDF renderer
                Dim renderer As New ChromePdfRenderer()

                ' Configure rendering options for better output
                renderer.RenderingOptions.MarginTop = 40
                renderer.RenderingOptions.MarginBottom = 40
                renderer.RenderingOptions.PaperOrientation = IronPdf.Rendering.PdfPaperOrientation.Portrait
                renderer.RenderingOptions.Title = "Persons Report"

                ' Render View to PDF document
                Dim pdf As PdfDocument = 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")
            End If

            Return View(persons)
        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>();

// Optional: Configure IronPDF license if you have one
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY-HERE";

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

Dim 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)()

' Optional: Configure IronPDF license if you have one
IronPdf.License.LicenseKey = "YOUR-LICENSE-KEY-HERE"

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()