Entity Framework core Master/Detail grid not invoking Update in detail grid

Question

Using DotNet 7 EFcore v7 Syncfusion v 23.1.41

I have server side Blazor app using a data grid with a nested grid. I am using EF v7. I am using the recommended DAL/WebAPI paradigm to access the data. I have EditMode set to normal. I have the detail toolbar set to "Add", "Edit", "Delete", "Cancel", "Update"

All works fine except I cannot update detail records (master records work fine). When I press Update no WebAPI call is fired. Add correctly generates a blank record, delete correctly fires the delete WebAPI call and cancel correctly works but Update does nothing.

What do you think I may have got wrong? How should I go about debugging this?

M

How should I go about debugging this?

M

Naveen Palanivel · Answer

Hi Martin,Before proceeding further with your requirement kindly share
the below details to validate further at our end.
 Share us the entire Grid code snippet along with mode class 
 Please ensure that Isprimarkey is defined in the detail grid
 Please set the OnActionFailure event in the
     detail grid for when the 'Update' button is clicked and share the
     OnActionFailure event args if any errors occur.
 Share us the video
     demonstration of the issue with elaborately , it will more useful to us.
 If possible share us a simple issue reproduceable sample with duplicate
     data.
The
above-requested details will be very helpful for us to validate the reported
query at our end and provide the solution as early as possible.Regards,Naveen Palanivel

Martin · Answer

I think this is actually dues to changes in Dot Net from 6 onwards.  The EF generated classes (scaffolded form the database) included non nullable virtual fields representing linked tables.  These were null when doing update/inserts in detail records which therefore failed.Adding the

SuppressImplicitRequiredAttributeForNonNullableReferenceTypes  option as below resolved the issue.builder.Services.AddControllersWithViews(options=>options.SuppressImplicitRequiredAttributeForNonNullableReferenceTypes = true)    .AddMicrosoftIdentityUI();

Monisha Saravanan · Answer

Hi Martin,Thanks for the update.We are glad to hear that you have find out the cause and
resolved the issue on your own. Kindly get back to us if you need further
assistance. As always we will be happy to assist you.Regards,Monisha