Displaying the error indicator on a Spark FormItem container in Flex Hero

By Peter deHaan On August 30, 2010 · Leave a Comment

The following example shows how you can display the error indicator on a Spark FormItem container in Flex Hero by setting the errorString property or using the Flex validators.

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Using the AnimateColor effect to animate the content background color of a Spark TextInput control in Flex 4

By Peter deHaan On March 6, 2009 · 2 Comments

The following example shows how you can use the AnimateColor effect to animate the background color on a Spark TextInput control in Flex 4.

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

By Peter deHaan On September 7, 2007 · 7 Comments

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 [...]

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

By Peter deHaan On August 2, 2007 · 4 Comments

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 [...]

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