TableExport Issue: 無法匯出PDF

[james-chao]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

TableExport 在Excel File 部分可正常匯出，但無法正常匯出PDF file
BB 8.5.5 TableExport 8.1.0

Expected Behavior

能正常匯出EXCEL 和 PDF file

Steps To Reproduce

https://github.com/james-chao/FileViewerIssue.git

Exceptions (if any)

No response

.NET Version

8.0.204

Anything else?

VS2022

[bb-auto[bot]]

@james-chao Thank you for reporting. We will give triage later.

[ArgoZhang]

@james-chao 这种问题不要第一时间就来发 Issue 正确解决问题办法

1. 去官网查看导出 PDF 是否正常
2. 如果官网不正常，创建 Issue
3. 如果官网正常，请查看相关文档

解决办法

https://www.blazor.zone/html2pdf

https://www.blazor.zone/export-pdf-button

增加包 BootstrapBlazor.Html2Pdf

请点击下方按钮 Make as answer

[james-chao]

@ArgoZhang 增加包 BootstrapBlazor.Html2Pdf 依然不行，請問單純設定 ShowExportButton="true" ShowExportPdfButton="true" ShowExportCsvButton="true" 匯出Csv和 Excel 都OK 只有 Pdf 不行，是因為Pdf 匯出還要參考 html2pdf 組件的寫法嗎?我在https://www.blazor.zone/table/export 上看导出 Pdf是可以的，但沒有特別寫Code啊，我的TableDemo 匯出如下
EXCEL:

PDF:


https://github.com/james-chao/FileViewerIssue.git

[ArgoZhang]

请点击下方按钮 Make as answer

[james-chao]

@ArgoZhang OK 了，感謝!

[ArgoZhang]

@james-chao 点一下按钮啊。不停的提醒，你也不点。

[james-chao]

@ArgoZhang 想再請問一下，我上到Server 後碰到以下的錯誤，也將builder.Services.Configure(option => option.MaximumReceiveMessageSize = null); 設定了，call PuppeteerSharp 會出現超過30 秒的錯誤訊息，我要如何取消限制
類似await page.setDefaultNavigationTimeout(0); 這樣的設定，感謝!

1) Exception Information
  ---------------------------------------------
  Exception Type: System.TimeoutException
  TargetSite: System.Threading.Tasks.Task <WithTimeout>b__0()
  Message: Timeout of 30000 ms exceeded
  Data: System.Collections.ListDictionaryInternal
  HelpLink: 
  Source: PuppeteerSharp
  HResult: -2146233083

[james-chao]

The issue was due to the fact that the server being deployed to did not have internet access and PuppeteerSharp was looking to download Chromium resolved by specifying a local execution path.

ExecutablePath = "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"

Revised code below

var url = ConfigurationManager.AppSettings["EnrolmentFormUrl"] + "?code=" + code;

var fileName = "enrolment" + $"{DateTime.Now:__ddMMyyyyhhmmssfff}" + ".pdf";

var output = Config.attachmentPath + fileName;

var browser = await Puppeteer.LaunchAsync(new LaunchOptions
{
Headless = true,
TransportFactory = AspNetWebSocketTransport.AspNetTransportFactory,
ExecutablePath = "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"
}).ConfigureAwait(false);

var pdfOptions = new PdfOptions
{
Format = PaperFormat.A4,
PreferCSSPageSize = true
};

var page = await browser.NewPageAsync();
await page.GoToAsync(url).ConfigureAwait(false);
await page.PdfAsync(output, pdfOptions).ConfigureAwait(false);

[densen2014]

@ArgoZhang 是依赖chrome.exe吗?