Propagate change of tmap in a IDetailCustomization

Development Programming & Scripting C++
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1

In a DetailCustomization, i have a TMap

I would like to programmatically propagate change of a property of the struct of the edited CDO to every instances (the one in viewport in particular).
So far i tried PostEditChangeChainProperty and NotifyPostChange (on the TMap property handle) but without any success.

I présume i should get a IPropertyHandle of the struct property and use Setvalue. But the property is a FGuid, and i can’t use setvalue.

Could anyone show me the direction ?

2

Find a solution: propagate to all archetype instances. Need to press compile to see the result in viewport and level. It works, but i have a doubt as to its correctness.

TRACESTATIC("Remove weapon for %s", *HPName.ToString());

Ship->FixedHardPointsFromLibrary[HPName].WeaponId = FGuid(); // remplace par un guid invalide (0)

Ship->MarkPackageDirty();

TRACESTATIC("istemplate %i", (int32)Ship->IsTemplate());
if (Ship->IsTemplate())
{
    TArray<UObject*> ArchetypeInstances;
    Ship->GetArchetypeInstances(ArchetypeInstances);
    for (int32 InstanceIndex = 0; InstanceIndex < ArchetypeInstances.Num(); ++InstanceIndex)
   {
		ABaseShip* Instance = Cast<ABaseShip>(ArchetypeInstances[InstanceIndex]);
		if (!Instance)
		{
			TRACEWSTATIC("Instance not valid !!");
		}
		Instance->FixedHardPointsFromLibrary[HPName].WeaponId = FGuid();
		Instance->MarkPackageDirty();
	}
}