PDF Viewer Unload document

[Christoph Gasser]

I have loaded a PDF successfully in the control. But when I close the application or try to unload the PDF document using "Unload" function, I get this error:

An unhandled exception of type 'System.ArgumentNullException' occurred in Syncfusion.Pdf.Base.dll

Additional information: Der Wert darf nicht NULL sein.

Any idea how to solve that?

Version: 15.1451.0.37

BR
CG

[Balasubramanian Sundararajan]

Hi Christoph, 

Thank you for using Syncfusion product. 

We are afraid that we are unable to reproduce “System.ArgumentNullException” thrown while unloading the PDF document from the PDF viewer control in Windows forms platform. We have created a simple sample to reproduce the reported exception and the sample can be downloaded from the following link, 

http://www.syncfusion.com/downloads/support/forum/131468/ze/Getting_Started-914213943  

Can you please modify the above sample or provide us the sample with which the issue could be reproduced. Also provide the following details which will help us to analyze more and assist you better on the issue. 

PDF document: 

Syncfusion Essential Studio: 

Platform: 

Visual Studio: 

System Culture information:  

Operating System: 

Please let me know if you have any queries. 

Thanks, 

Balasubramanian S 

[Giancarlo Rantes]

Hellow

I have the same problem.

I attach the example with the file that presents this problem

Attachment: Getting_Started_9bfb2e0b.rar

[Divya Dhayalan]

Hi Giancarlo, 

 

Thanks for contacting Syncfusion support. 

We were tried to reproduce the issue based on the previous update in the forum and sample code, but we are unable to reproduce the reported “PdfViewer throws when on Unload” in our side. Based on the Forum details we suspect that you are using the Syncfusion product version 15.1 or 16.4. On analyzed further, we have found that we have resolved some issues in our recent days related to the same and the reported issue might be resolved in our latest version of PDF Viewer.  

Our latest version of NuGet package has been published in the nuget.org and please find the link below: https://www.nuget.org/packages/Syncfusion.PdfViewer.Windows  

So, we request you to try our latest version of PDF Viewer and let us know whether the issue is resolved. If you still face the issue, please provide us the following details that will be helpful for us to analyze more and provide you a better solution. 

1. Replication steps to reproduce the issue 

2. Syncfusion Product version.   

3. .Net Framework / .Net Core version. 

4. Operating System. 

Regards, 

Divya