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Exclusion Groups v2.0

This is the second blog entry describing a DIY exclusion group. If you have not read part one, you should probably start there before trying to digest part two. I wanted to build on the functionality...

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Exclusion Groups v3.0

This is the third and final post describing a pattern for building your own exclusion group.  The first two posts are required reading for this entry: Build a better exclusion group   Exclusion Groups...

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Validation Patterns: Part 2

Continuing from the previous post, we are looking at the problem of validating fields without inundating the user with message boxes during their form session in Adobe Reader — and without...

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Validation Patterns: Part 3

Here is the last (for now) in the series on how to validate templates in a user-friendly manner.  I have attached a new and improved sample (with data). What is new in this version: An email submit...

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XFA 3.0: presence="inactive"

This is the first in a short series of posts to describe the new functionality found in XFA 3.0. If you have developed a form with even modest complexity, you have almost certainly manipulated the...

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XFA 3.0: Message Handling Options

Of the XFA 3.0 enhancements, it’s safe to say this one was overdue.  Today XFA processor in Acrobat/Reader notifies users about invalid fields by popping up dialog boxes.  However, form authors feel so...

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XFA 3.0: Validation State Change Event

The field, exclGroup and subform elements have a new event: validationState.  The primary use of this event is to change the appearance of fields as they become valid or invalid. Just for review —...

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Script Validation vs. Null Validation

There is one question I get asked frequently enough that it warrants its own blog entry. Someone tries a validation script that looks like this: this.rawValue !== null; But the validation never fails....

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Optional Sections of Forms

When Adobe first released Reader 9.1 I wrote a series of blog entries describing the new forms features.  But of course, at that time it would have been easy to overlook them because you didn’t have a...

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