Potential issue with DepedentLookupFieldDefinition.ShowInDisplayForm

[SubPointSupport]

Hi! I ran across a "problem" today that I just want to raise here. I'm provisioning a DepedentLookupFieldDefinition using M2 1.2.40 CSOM. The field is added and so far all is good. BUT I also specified ShowInDisplayForm = false for that field, but that setting does not seem to work. Could that possible be because of lack of support using CSOM for that?

https://www.yammer.com/spmeta2feedback/#/threads/show?threadId=631884114&messageId=631884114

[SubPointSupport]

Not all the fields properties were "promoted" for the DepedentLookupFieldDefinition. ShowInXXX props are some of these, they are not included into the provision, and M2 does not do a thing with them.

More coverage/test on all field props should be added to align the depended lookup field with regular fields.

[SubPointSupport]

Implemented for SSOM/CSOM, handled by CanDeployRandom_DependentLookupFieldDefinition and changeable field (ExpectUpdate attr)

SSOM seems to support all props.
CSOM seems to not update the following props:

• AllowMultipleValues
• FieldType
• LookupField

These field are excluded from the regression test validation. For the time being that seems to be a solution, as that set of the field is not actively used in the dependent lookup field provision scenarios.

Most likely, some kind of SharePoint CSOM API limitation. Further investigation will be required as per the customers feedback and valid provision cases to changes these fields.