Field with DIESEL expression does not update

[Jacc]

Basically I want a mtext field that is linked to a attribute in an object.
Easy enough, you just take Edit Field -> Objects -> Object and select the object and the attribute you want.
The field formula looked something like this: %<\AcObjProp Object(%<\_ObjId 2130252728>%).TextString>%

Then I realized I only want part of that attribute so I used a DIESEL expression looking like this: $(substr,Hi,2) and replaced the word "Hi" with the field code. The result looked like this: $(substr,%<\AcObjProp Object(%<\_ObjId 2130252728>%).TextString>%,4)

Problem is now the field doesn't update when typing REGEN and it doesn't update when typing UPDATEFIELD. Tried with booth FIELDEVAL=16 and FIELDEVAL=31.
If I doubleklick it, right click and choose Update Field it will update but if you have a large number of fields it's no fun to use three clicks on each to update them. The whole idea with fields is kind of lost...
Any ideas about this?

 

[IFRs]

Do the fields update when you close and open the drawing?

 

[CarlB]

Do fields with only diesel expressions update?

 

[Jacc]

IFRs: No, it doesn't update the fields with DIESEL expressions when I close and open. I think your question is related to the system variable FIELDEVAL. Look up FIELDEVAL in the manual and you see what I mean.

CarlB: I assume that you mean "fields without diesel expressions". The answer is yes, fields without DIESEL expressions update on REGEN and when saving etc. (according to the FIELDEVAL variable I assume).

 

[CarlB]

Actually I said(typed) WITH ONLY diesel expressions, my point being maybe diesel expressions don't update according to Fieldeval.

 

[Jacc]

Sorry for my ignorant assumption CarlB. I haven't tried with only diesel expressions. Good point, when do diesel expressions update? Sorry about the late reply, I whish to keep the discussion going.