How to Convert Razor to PDF in Blazor Server

添加模型类

添加一个标准的C#类，并命名为PersonInfo。 此类将作为存储人员信息的模型。 插入以下代码：

:path=/static-assets/pdf/content-code-examples/how-to/razor-to-pdf-blazor-server-model.cs

namespace BlazorSample.Data
{
    public class PersonInfo
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Title { get; set; }
        public string Description { get; set; }
    }
}

Namespace BlazorSample.Data
	Public Class PersonInfo
		Public Property Id() As Integer
		Public Property Name() As String
		Public Property Title() As String
		Public Property Description() As String
	End Class
End Namespace

添加Razor组件

使用RenderRazorComponentToPdf方法将Razor组件转换为PDF。 通过实例化ChromePdfRenderer类来访问该方法。 该方法返回一个PdfDocument对象，可用于导出PDF文档或进一步修改它。

The returned PdfDocument can undergo additional modifications, such as conversion to PDF/A or PDF/UA formats. You can also merge or split the PDF document, rotate its pages, and add annotations or bookmarks. 自定义水印也可以盖在您的PDF上。

添加一个Razor组件并命名为Person.razor。 输入以下代码：

@page "/Person"
@using BlazorSample.Data;
@using IronPdf;
@using IronPdf.Extensions.Blazor;

<h3>Person</h3>

@code {
    // A parameter to receive a list of persons from the parent component.
    [Parameter]
    public IEnumerable<PersonInfo> persons { get; set; }

    // Dictionary to hold parameters that will be passed to the PDF renderer.
    public Dictionary<string, object> Parameters { get; set; } = new Dictionary<string, object>();

    protected override async Task OnInitializedAsync()
    {
        // Initialize the persons list with some sample data.
        persons = new List<PersonInfo>
        {
            new PersonInfo { Name = "Alice", Title = "Mrs.", Description = "Software Engineer" },
            new PersonInfo { Name = "Bob", Title = "Mr.", Description = "Software Engineer" },
            new PersonInfo { Name = "Charlie", Title = "Mr.", Description = "Software Engineer" }
        };
    }

    private async void PrintToPdf()
    {
        ChromePdfRenderer renderer = new ChromePdfRenderer();

        // Apply text footer to the PDF pages.
        renderer.RenderingOptions.TextFooter = new TextHeaderFooter()
        {
            LeftText = "{date} - {time}",
            DrawDividerLine = true,
            RightText = "Page {page} of {total-pages}",
            Font = IronSoftware.Drawing.FontTypes.Arial,
            FontSize = 11
        };

        Parameters.Add("persons", persons);

        // Render Razor component to PDF and save it.
        PdfDocument pdf = renderer.RenderRazorComponentToPdf<Person>(Parameters);
        File.WriteAllBytes("razorComponentToPdf.pdf", pdf.BinaryData);
    }
}

<table class="table">
    <tr>
        <th>Name</th>
        <th>Title</th>
        <th>Description</th>
    </tr>
    @foreach (var person in persons)
    {
        <tr>
            <td>@person.Name</td>
            <td>@person.Title</td>
            <td>@person.Description</td>
        </tr>
    }
</table>

<button class="btn btn-primary" @onclick="PrintToPdf">Print to Pdf</button>

此外，使用这种方法生成PDF可让您完全访问RenderingOptions中的所有功能。 这包括能够插入文本，以及HTML页眉和页脚。 另外，您可以添加页码，并调整页面的尺寸和布局以符合您的喜好。

在左侧菜单中添加一个部分

• 导航到“Shared文件夹”并打开NavMenu.razor。
• 添加一个部分来打开我们的Razor组件，Person。 我们的Person组件将是第二个选项。

<div class="@NavMenuCssClass" @onclick="ToggleNavMenu">
    <nav class="flex-column">
        <div class="nav-item px-3">
            <NavLink class="nav-link" href="" Match="NavLinkMatch.All">
                <span class="oi oi-home" aria-hidden="true"></span> Home
            </NavLink>
        </div>
        <div class="nav-item px-3">
            <NavLink class="nav-link" href="Person">
                <span class="oi oi-list-rich" aria-hidden="true"></span> Person
            </NavLink>
        </div>
        <div class="nav-item px-3">
            <NavLink class="nav-link" href="counter">
                <span class="oi oi-plus" aria-hidden="true"></span> Counter
            </NavLink>
        </div>
        <div class="nav-item px-3">
            <NavLink class="nav-link" href="fetchdata">
                <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data
            </NavLink>
        </div>
    </nav>
</div>

运行项目

这将向您展示如何运行项目并生成 PDF 文档。