Disable Cascading delete not working

Radzen Blazor Studio
1

Hello,

If I disable Cascading delete in Code generation settings Cascading delete still is used:

image

I cannot see any difference if it is disabled or enabled in generated code:

public async Task<PDBIntern.Models.PDB.Bezirk> DeleteBezirk(int bezirkid)
        {
            var itemToDelete = Context.Bezirks
                              .Where(i => i.Bezirk_ID == bezirkid)
                              .FirstOrDefault();

            if (itemToDelete == null)
            {
               throw new Exception("Item no longer available");
            }

            OnBezirkDeleted(itemToDelete);


            Context.Bezirks.Remove(itemToDelete);

            try
            {
                Context.SaveChanges();
            }
            catch
            {
                Context.Entry(itemToDelete).State = EntityState.Unchanged;
                throw;
            }

            OnAfterBezirkDeleted(itemToDelete);

            return itemToDelete;
        }

robert

2

I think this is done in your DbContext.

Check your

protected override void OnModelCreating(ModelBuilder builder)
{
...
}

In the definition of you entities could be something like this for disabled cascading:
.OnDelete(DeleteBehavior.Restrict)

3

No, there is no difference if it is enabled/disabled and no OnDelete(DeleteBehavior.Restrict)

maybe a Bug in Balzor Studio?

robert

4

I'm seeing the same thing as far as scaffolding with or without the cascade delete flag set does not change the code at all.

5

When cascade delete is enabled the Delete method in the service in Blazor server app and the ODataController in the WebAssembly app will have Include() for related entities:

image
image1920×1080 176 KB

I double checked our template and I've noticed that there are cases where the code will not be generated - the problem is fixed immediately and the fix will be part of our next update today/tomorrow.

1 Like
6

Just FYI, confirmed it now works as expected in 1.8.0

Could you please add to the list of enhancements to save the prior setting?

I don't want cascade delete and am re-scaffolding often, every time I need to uncheck it rather that it remembering the setting from the last run.

Same for the CRUD configuration, would be great if remembered those values from the prior run.