Category Archives: Validator

Trimming strings using the Flex StringUtil class’s trim() method

The following example shows you how to use the StringUtil.trim() method in Flex to remove leading and trailing whitespace from form fields before validating user input. This allows you to make sure that user’s don’t try anything sneaky like enter spaces instead of characters to bypass any minimum length validation you may have in place when validating data.

Full code after the jump.

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Using the Validators.validateAll() method to validate a form

I recently saw this issue in FlexCoders and filed a bug for the poster. Well, it turns out the bug I filed was a duplicate of an existing bug, and that bug has been fixed (in Flex 3 — codename:Moxie). So, long story longer, here’s how you can use the Validator class’s validateAll() method to validate a form (which may or may not have enabled validators).

Full code (and workaround) after the jump.

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