Hello.
I am trying to display custom drop down in editor. Everything is working well, but only for simple customization. I used the same pattern as in the engine to build the drop down, but I get null exception. Below is the whole function:
void FUWECustomDropDownStructureSettings::CustomizeDetails(IDetailLayoutBuilder& DetailBuilder)
{
IDetailCategoryBuilder& StructuresCategory = DetailBuilder.EditCategory("Structures", FText::FromString(TEXT("Structures")), ECategoryPriority::Important);
TSharedPtr<IPropertyHandle> StructuresProperty = DetailBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(AUWStructuresSettings, StructureNames));
TSharedRef<IPropertyHandle> StructuresPropertyRef = StructuresProperty.ToSharedRef();
TSharedPtr <IPropertyHandleArray> StructuresPropertyArray = StructuresPropertyRef->AsArray();
TSharedRef<FDetailArrayBuilder> StructuresArrayPropertyBuilder = MakeShareable(new FDetailArrayBuilder(StructuresPropertyRef));
StructuresArrayPropertyBuilder->OnGenerateArrayElementWidget(FOnGenerateArrayElementWidget::CreateSP(this, &FUWECustomDropDownStructureSettings::GenerateStructureArrayElementWidget, &DetailBuilder));
StructuresCategory.AddCustomBuilder(StructuresArrayPropertyBuilder);
}
Null exception is in that line:
TSharedRef<FDetailArrayBuilder> StructuresArrayPropertyBuilder = MakeShareable(new FDetailArrayBuilder(StructuresPropertyRef));
because StructuresPropertyArray is null. What am I missing to get this working?