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File Manager crashes after upgrading to 19.4.0.50

Hi,

I recently tried upgrading our Syncfusion library from 19.2.0.62 to 19.4.0.50 and all the pages of our website with the File Manager component in it started to intermittently crash.

Here's the exception that it spits out after it crashed.

fail: Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost[111]
Unhandled exception in circuit 'uYSMhUkothbVzUnKqqA0SK8k5LJmG57h_daEJRPeqbc'.
System.ArgumentNullException: Value cannot be null. (Parameter 'source')
at System.Linq.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at Syncfusion.Blazor.Navigations.SfTreeView`1.OnPropertyChangeHandler_ExpandedNodes()
at Syncfusion.Blazor.Navigations.SfTreeView`1.OnPropertyChangeHandler()
at Syncfusion.Blazor.Navigations.SfTreeView`1.OnParametersSetAsync()
at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle)


Please note that the issue is not related to the controller related to the File Manager component as I have debugged the controller and the app finished executing the controller code and it still crashes.

Please get back to me as soon as possible if there is a way to resolve this.

Thanks!
Denzel


4 Replies
IL Indhumathy Loganathan Syncfusion Team February 9, 2022 12:37 PM UTC

Hi Denzel, 
 
We are unable to replicate the reported issue at our end in Blazor File Manager with the 19.4.50 package version. Please see the link below for the sample. 
 
 
We suggest you delete the bin and obj folders, then clear the browser cache and clean your solution before running the sample. If the issue persists, kindly share your dotnet version with video footage of the issue. If possible, replicate the issue in the above sample. These details would help us to assist you promptly. 
 
Please let us know if you need any further assistance. 
 
Regards, 
Indhumathy L 


RS Roy Sunga February 9, 2022 02:26 PM UTC

Hi Indumathy,


Please see attached screen capture of the current issue. To replicate accurately on your end, try creating two pages. The first page has a Gantt chart and another page has the file manager component. Add a link to the page with the Gantt chart. Now try loading as much as data as you can to the Gantt chart. Without waiting for the Gantt chart to render, click the link to the next page with the file manager component. I think that should enable the error to pop up.

Also, there's nothing special with my File Manager front end code.

 

The .NET version that we use is NET 5.0.


Attachment: 03A4SaPzuO_268078f7.zip

IL Indhumathy Loganathan Syncfusion Team February 10, 2022 03:43 PM UTC

Hi Denzel, 
 
Currently, we are validating the reported issue by preparing the File Manager sample with the mentioned configurations. We will update you with further validation details on or before February 15, 2022. We appreciate your patience. 
 
Regards, 
Indhumathy L 


IL Indhumathy Loganathan Syncfusion Team February 15, 2022 03:33 PM UTC

Hi Denzel, 
 
We have prepared a sample with the mentioned configurations but were unable to replicate the issue at our end. We have recorded the behavior in the below video footage. 
 
 
 
Please check the shared sample. Whether you have faced the same issue in the shared sample as well. If not, please help us replicate the exact issue by modifying the shared sample with your sample code. It will help us further validate this. 
 
Regards, 
Indhumathy L  


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