AutoCAD: Updating Fields Automatically

A system variable controls how fields are updated, play with it if you are having trouble.
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My post about using fields in dynamic blocks has aroused some comments (mostly on the spanish version of the post) about the fact that the field of the sample block does not update automatically. I set myself to find why was that and if there was a solution.
This is the block I am talking about.The idea is that when you stretch the dynamic block, the field that shows its width should stretch too. Unfortunately this seems to not be possible, as fields require at least a "REGEN" to be updated. The research let me to discover the FIELDEVAL system variable, that actually controls how fields are updated. This are the options on setting the value of this system variable:

• 0: Not updated
• 1: Updated on open
• 2: Updated on save
• 4: Updated on plot
• 8: Updated on use of ETRANSMIT
• 16: Updated on regeneration

At least I didn't waste my time completely...and you get to learn something new too.

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