Error While converting Presentation slides to Image

[Akash Agarwal]

Hi,

While converting Presentation to Image using ConvertToImage(ExportImageFormat.Jpeg) , for one of the slides I am getting the following error.

System.NullReferenceException

  HResult=0x80004003

  Message=Object reference not set to an instance of an object.

  Source=Syncfusion.Presentation.Portable

  StackTrace:

   at Syncfusion.Presentation.TableImplementation.Table.UpdateHeightOfRow(Int32 rowIndex, Single height)

   at Syncfusion.Presentation.TableImplementation.Table.Layout()

   at Syncfusion.Presentation.SlideImplementation.Slide.Layout(Shape shape)

   at Syncfusion.Presentation.SlideImplementation.Slide.Layout()

   at Syncfusion.Presentation.SlideToImageConverter.SlideToImageConverter.ConvertToImage(ISlide slide, ExportImageFormat imageFormat)

   at PptToImage.Program.Main(String[] args) in C:\PptToImage\Program.cs:line 36

Note : The slide contains table with some data, When I tried removing few values from the table , then it worked fine.

Is there any limit on the size of data, allowed  on a slide that can be convert to image?

Thanks.

[Loketha Erusappan]

Hi Akash,

Thank you for contacting Syncfusion support.

We are unable to reproduce the reported issue with the given details. Could you please provide following details? It will be greatly helpful for us to reproduce and providing a prompt solution.

1. Input Presentation document
2. Syncfusion product version
3. .NET Framework version
4. Project or complete code snippet (To reproduce the issue in our end)
5. OS details
6. Visual studio version

Please let us know if you have any questions.

Regards,
Loketha E 

[Christiano Kiss]

Hi Loketha,

I can confirm that this issue is happening.

I've attached a self-contained project to reproduce the problem.

Some information:

* .NET Core 3.1

* Visual Studio 2019/2022

* Syncfusion 20.2.0.46

Attachment: SyncfusionApp_143d5bb.zip

[Anto Nihil Sahaya Raj]

Hi Christiano,

We have reproduced the reported issue “NullReferenceException throws while converting a Presentation slides to Image” in our end, and we suspect it to be a defect. We will validate this issue and update you with more details on 07^th September 2022.

Regards,
Anto Nihil S

[Anto Nihil Sahaya Raj]

Hi Christiano,

We have confirmed that reported issue “NullReferenceException throws while converting a PowerPoint slide to Image” 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 27^th September 2022.

The status of this bug can be tracked through the below link:
https://www.syncfusion.com/feedback/37592/nullreferenceexception-thrown-while-converting-a-powerpoint-slide-to-image

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,
Anto Nihil S

[Anto Nihil Sahaya Raj]

Hi Christiano,

Since our 2022 Volume 3 Main release is expected to be rolled out this week. So, there will be no weekly release this week. We will include the fix for the reported issue in our upcoming weekly NuGet release which will be expected to be available on 04^th October 2022.

The status of the issue can be tracked through below feedback link.
https://www.syncfusion.com/feedback/37592/nullreferenceexception-thrown-while-converting-a-powerpoint-slide-to-image

Regards,
Anto Nihil S

[Akash Arul]

Hi Christiano,

We have included the fix for the reported issue with “NullReferenceException throws while converting a PowerPoint slide to Image” in our upcoming weekly NuGet release which will be expected to be available on tomorrow (5th October 2022).

The status of the issue can be tracked through below feedback link.
https://www.syncfusion.com/feedback/37592/nullreferenceexception-thrown-while-converting-a-powerpoint-slide-to-image

Regards,
Akash A.

[Akash Arul]

Hi Christiano,

As promised earlier, we have included the fix for the reported issue with “NullReferenceException throws while converting a PowerPoint slide to Image” in our latest weekly NuGet release (v20.3.0.48).

Please use the below link to download our latest weekly NuGet:
https://www.nuget.org/packages/Syncfusion.PresentationRenderer.Net.Core/20.3.0.48

The status of this bug task can be tracked through the below link:
https://www.syncfusion.com/feedback/37592/nullreferenceexception-thrown-while-converting-a-powerpoint-slide-to-image

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.

[Anxhela Lakra]

Hi Akash,

The release has fixed the issue that has been sent from Christiano in the zip file, but unfortunately we found some more while trying to convert some more ppts files into images. 

I've been trying a work around, by converting them into pdf and then into images, still using syncfusion, but with no success.
Attached you can find the code & the files that are causing issues.

If this can please be looked into and advice if there is any other way in order to avoid these issues.

Looking forward to hearing from you

Thanks
Anxhela

Attachment: SyncfusionApp_19102022_e45dc045.zip

[Anto Nihil Sahaya Raj]

Hi Anxhela,

We have created a separate forum for the reported issues. Kindly use the below forum for further follow-up.

Forum- https://www.syncfusion.com/forums/178354/facing-multiple-issues-while-converting-presentation-slides-to-images-from-f150204

Now we are closing this forum.

Regards,
Anto Nihil S