System.InvalidOperationException at random intervals

[Maurice]

Hi,

I have a grid and sometimes at random intervals I get an error "System.InvalidOperationException: TelerikValidationComponent requires a cascading parameter of type EditContext. You can use Telerik.Blazor.Components.TelerikValidationTooltip`1[System.Object] inside a EditForm or TelerikForm".

This is during an edit/update of values.

 

I use blazor server side
net5.0
telerik ui for blazor 2.27

 

[Hristian Stefanov]

Hi Maurice,

Indeed, this seems like strange behavior. We have fixed such a bug with the Grid in our 2.24.0 release.

I tested with the Grid live demo which uses the latest version (2.27.0), and it seems the editing actions are working as expected. Can you please isolate the issue in a runnable sample project and send it to us? This will allow us to test the behavior and investigate the issue on our end.

Thank you in advance! I look forward to receiving your reply.

[Maurice]

I have found the issue.

What I have are a main grid which is updated and a loaded grid from another page

<StillToWrite Date="@DateDatePickerValue" @ref="_stillToWriteChild"/>

At the end of the upgrade process of the main grid I send a refresh to the StillToWrite page with his own grid using

if (_stillToWriteChild != null) await _stillToWriteChild.RefreshMainGridOnClickHandler();

And this refresh fails due to, what I think, a mismatch in the timing. closed connection and then the update of this subgrid,
Sometimes the closing of the connection is slower and the update  of this subgrid is fast enough.

[Hristian Stefanov]

Hi Maurice,

Thank you for sharing how things turned out.

It seems that you have found the issue. I'm glad to hear that.

If you are still facing a problem and further investigation is needed, you can isolate the issue in a runnable project and send it for review.

Regards,

Hristian Stefanov
Progress Telerik