The HideInsideIV Command

You may have a situation where you have conditions that depend on the value of a data element during the lifetime of the interview.  For example, the condition on an OnExitSet command, or a ReadOnly with a condition.

This would be the case, for example, with a data source which was accessed “for all templates” and which retrieved information about the user (using the WindowsLogonUser value). Suppose you have users qualified by a category, being High, Medium or Low. And a Readonly command saying:

«ReadOnly(Name,IDNumber,(UserCategory = 'Low'))»

In all likelihood you would not want the user of the interview to see the value of UserCategory, and might be tempted to use «ExcludeFromIV(UserCategory)».

This is when you would use


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