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SfDataGrid Master Detail Hangs/Freezes during Cell Click events

Dear Syncfusion Support Team,

I'm currently using the SfDataGrid Master Detail to bind a nested dataset (Header > Detail > SubDetail) with cell click events at Detail and SubDetail nested levels.

Attached is a simple test program to simulate the application hang/freeze-up scenario when a Detail cell is clicked after expanding the Datagrid to SubDetail level.

Please refer to the SFDataGrid Master Detail Cell Click Event Issue.docx in the zip file for more details on how to simulate this issue.

Appreciate your time on this matter and hope to hear from you soon.

Thank you.

Best Regards,
Kok Keong

Attachment: sfDatagrid_MasterDetail_Issue_7f5630ad.zip

5 Replies

GG Gowtham Gopalsamy Syncfusion Team December 16, 2019 01:45 PM UTC

Hi Kok , 
Thank you for using Syncfusion controls. 
Currently, We are analyzing your provided sample and the mentioned issue reproduced at our end. We will update more details on 18th December,2019. 
We will appreciate your patience until then. 

KK Kok Keong December 16, 2019 01:48 PM UTC

Hi Gowtham,

Thanks for your reply and update.

Do let me know if you required any further details from my end.

Kind Regards,
Kok Keong

FP Farjana Parveen Ayubb Syncfusion Team December 17, 2019 10:51 AM UTC

Hi Kok, 
Thank you for your update. 
We didn’t need any further information for analyze this issue, as we promised earlier we will provide the further details on 18th December, 2019. 
Farjana Parveen A 

SS Susmitha Sundar Syncfusion Team December 18, 2019 01:45 PM UTC

Hi Kok, 
Thank you for your patience. 
We have analyzed your reported issue “Application hang/freeze-up scenario when a Detail cell is clicked”. This issue occurs only when showing MessageBox in CellClick event of DetailViewDataGrid and works fine for parent grid. In default, when an MessageBox is shown, we can’t perform any UI action before closing the MessageBox. It seems that application hangs up due to MessageBox is shown and hidden immediately in DetailsView case, so we could not close the MessageBox to proceed further on UI. Currently, we are checking this scenario, we need one more business day to validate this issue. We will provide complete details on December 19, 2019. 
We appreciate your patience until then. 
Susmitha S 

SS Susmitha Sundar Syncfusion Team December 19, 2019 03:47 PM UTC

Hi Kok, 
Thanks for your patience. 
We have confirmed the reported issue of “Application hang/freeze-up scenario when a Detail cell is clicked” as a bug. This issue occurs due to MessageBox is hidden behind form when showing from DetailsViewDataGrid event alone. We will fix the issue and include this in our next 2019 Volume 4 Service Pack release which is expected to be release by first week of February 2020. 
You can track the status of this report through the following feedback link,   
Note: The provided feedback link is private, and you need to login to view this feedback.   
Meanwhile, please press Tab key to show the hidden message box to close it for further UI interactions. 
Susmitha S 

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