Assume having these models first:
Method that has one
OriginalCode that has many
Mutant that has many
Now when querying on
Method I want the other being loaded. So I have the following:
Method targetMethod = dBContext.Methods .Include(me => me.OriginalCode) .ThenInclude(oc => oc.Mutants) .FirstOrDefault(me => me.Id == id);
and the next step is to include additionally the
ParseSubTree. But the thing is that I can't access it. See the following Image:
the problem is "mu is a list instead of being an object reference"!
Where is my mistake!
This is a known Intellisense issue with the
ThenInclude overload for collection type navigation properties, tracked by the Completion missing members of lambda parameter in fault tolerance case #8237 Roslyn GitHub issue.
Until it gets fixed, simply type the name of the property and it will compile successfully and work as expected.
.ThenInclude(mu => mu.ParseSubTrees)
Update: Now it's even specifically mentioned in the Including multiple levels section of the EF Core documentation:
Current versions of Visual Studio offer incorrect code completion options and can cause correct expressions to be flagged with syntax errors when using the
ThenIncludemethod after a collection navigation property. This is a symptom of an IntelliSense bug tracked at https://github.com/dotnet/roslyn/issues/8237. It is safe to ignore these spurious syntax errors as long as the code is correct and can be compiled successfully.