Grid throws validation error while pressing save button.

[Blazor]

Hi Great support;

My grid was working before i think its because of latest versions;

Here is my simple grid;

here is my model;

when i am clicking "save"

in Console this error comes;

I have made 100 times this type of grid i don't understand why this throws error other are not. 
I can't see any null value in my model, and there is no validetion rule in my grid.

Thanks.

[Blazor]

Ok I have just found the problem, in an other issue report;

https://www.syncfusion.com/forums/158036/grid-bug-since-18-2-0-58

[Renjith Singh Rajendran]

Hi Customer, 

 

Greetings from Syncfusion support. 

      

As updated in thread 158036, we have already logged a defect report “Exception is thrown while saving the changes in grid with CommandColumn”. Thank you for taking the time to report this issue and helping us improve our product. At Syncfusion, we are committed to fixing all validated defects (subject to technological feasibility and Product Development Life Cycle ) and including the defect fix in our upcoming  Volume 3, 2020 release which is expected to be rolled out by the end of September, 2020.     

    

You can now track the current status of your request, review the proposed resolution timeline, and contact us for any further inquiries through this link.    

https://www.syncfusion.com/feedback/18020/exception-is-thrown-while-saving-the-changes-in-grid-with-commandcolumns 

    

Until then we appreciate your patience.     

  

Regards,  

Renjith Singh Rajendran