HTMLExport.SaveAsXhtml() hangs

[Gyorgy Gorog]

Hi there, using the latest DocIO (20.3.0.47) under .NET 4.8, C#8.0, HTMLExport.SaveAsXhtml() hangs when trying to save the attached document. Memory consumption varies periodically forever:

As this process is sync, how can I timeout it?

Please advise.  Thanks.

Code is nothing special:

WordDocument document = new WordDocument( rtfStream, FormatType.Rtf );

                HTMLExport export = new HTMLExport();

                //The headers and footers in the input are exported

                document.SaveOptions.HtmlExportHeadersFooters = false;

                //Exports the text form fields as editable

                document.SaveOptions.HtmlExportTextInputFormFieldAsText = false;

                //Sets the style sheet type

                document.SaveOptions.HtmlExportCssStyleSheetType = CssStyleSheetType.Internal;

                //Export the Word document image as Base-64 embedded image

                document.SaveOptions.HTMLExportImageAsBase64 = true;

                //Saves the document as html file

                using MemoryStream htmlStream = new MemoryStream();

                export.SaveAsXhtml(document, htmlStream, Encoding.UTF8);

                document.Close();

Attachment: 82014HU2205PIJ020476_f355f3bb.ZIP

[Gyorgy Gorog]

I am unable to cancel this task properly. This helps but is not a good way, the task remains in Running state, despite the Cancel().

using MemoryStream htmlStream = new MemoryStream();

                using CancellationTokenSource tokenSource = new CancellationTokenSource(1000 * (int)Settings.Default.OcrTimeOutSecs);

                CancellationToken token = tokenSource.Token;

                Task task = Task.Run(() =>

                {

                    export.SaveAsXhtml(document, htmlStream, Encoding.UTF8);

                    return true;

                }

                , token);

                Task.Delay(100).Wait();

                if (task.Status != TaskStatus.Running)

                    task.Start();

                int secs = 0;

                while ( ++secs < Settings.Default.OcrTimeOutSecs && !task.IsCompleted)

                    Task.Delay(100).Wait();

                if (token.CanBeCanceled)

                    tokenSource.Cancel();

                document.Close();

                if (task.Status != TaskStatus.RanToCompletion ) return false;

[Anto Nihil Sahaya Raj]

Hi Gyorgy,

We have reproduced the reported issue “Hanging occurs while customizing the RTF to HTML conversion(HTMLExport.SaveAsXhtml())” in our end, and we suspect it to be a defect. We will validate this issue and update you with more details on 04^th October 2022.

Regards,
Anto Nihil S

[Gyorgy Gorog]

Anto, thanks for the update. Most worrying is that the process cannot be cancelled. Please consider an async version. Thanks.

[Akash Arul]

Hi Gyorgy,

We have confirmed that reported issue “Hanging issue occurs due to tab position while converting a RTF document to HTML” is a defect and we have logged a defect report. We will include the fix for this defect in our weekly NuGet release which is estimated to be available on 25^th October 2022.

The status of this bug can be tracked through the below link:
https://www.syncfusion.com/feedback/38175/hanging-issue-occurs-due-to-tab-position-while-converting-a-rtf-document-to-html

Disclaimer: “Inclusion of this solution in the weekly release may change due to other factors including but not limited to QA checks and works reprioritization.”

Regards,
Akash A

[Akash Arul]

Hi Gyorgy,

Due to the release holiday, we have postponed the weekly release to tomorrow. We will let you know once it is rolled out.

Regards,
Akash A.

[Akash Arul]

Hi Gyorgy,

As promised earlier, we have included the fix for the reported issue with “Hanging issue occurs due to tab position while converting a RTF document to HTML” in our latest weekly NuGet release (v20.3.0.52).

Please use the below link to download our latest weekly NuGet:
https://www.nuget.org/packages/Syncfusion.DocIO.WinForms/20.3.0.52

The status of this bug task can be tracked through the below link:
https://www.syncfusion.com/feedback/38175/hanging-issue-occurs-due-to-tab-position-while-converting-a-rtf-document-to-html

Note: We will include this fix in our 2022 Volume 3 service pack release which will be available in mid of November 2022.

Regards,
Akash A.

[Gyorgy Gorog]

Akash, thanks for fixing this. I can confirm this problem is fixed. Still, I would prefer it be cancelable. Thanks!