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I need to change a column name/code of a selected column (in GUI) in an invoked user defined Form, event before Apply/OK.

Mainly, I need to keep old name/code in an extended attribute to create migration script later. Which event handler to use? (Validate event has already changed name/code, not the old one).

pascal
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Brian Wexter
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    You could use model events: `OnModelOpen` to store the name/code initial state, and `OnModelSave` to record the modifications. Or you could display calculated attributes in the form, with the appropriate Get/Set methods. – pascal Nov 17 '19 at 09:51
  • Good idea, Pascal. It means "remember column initial names" when model is opened, and evaluate/process accumulated differences on saving the model or whenever later. Viable, even though a little bit clumsy, as all columns collection has to be cycled through on opening. With a big data model (3000 tables) it may take a few seconds. If I find nothing better, I'll go this way. – Brian Wexter Nov 17 '19 at 16:55

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