KeyNotFound Exception with [EagerLoad]

Hi guys,

I have an issue where I am receiving a KeyNotFound exception when loading an entity that has a nullable association which is marked with the [EagerLoad] attribute.

My association declaration looks something like:

When I load an entity that has a null itemCategory, I receive the KeyNotFound exception. Removing the EagerLoad attribute resolves the issue.

Cheers,

Greg

Hi Greg,

We have tried to create a simple repro based on your explanation here however we are unable to do so. Would you be able to provide a repro that we can run through and test with?

Thanks,

John-Daniel Trask 

Hi John-Daniel,

In the process of creating the requested repro I have stumbled upon an issue in my code that looks to be the root cause of the KeyNotFound exception.

For the record (and others' benefit), I had a rogue statement that was setting the itemCategoryId field to Guid.Empty instead of null.
In the general situation where an associated entity does exist, the hydration of the entity overwrites the empty guid in the itemCategoryId field before LightSpeed attempts to resolve the association, and everything works as expected. However, in the situation where there is no associated entity, the hydration does not overwrite the empty guid leaving LightSpeed attempting to resolve the empty guid - which of course results in the KeyNotFound exception.

So, clock this one up as "User Error".

Thanks for your time anyway,
Cheers,
Greg

Not a problem Greg, it's often the case that as soon as you go to show somebody else you realise the mistake.

I hope you're progressing well and enjoying LightSpeed.

Thanks,

John-Daniel