Tag Archives: .errorTip

Dynamically styling error tips in Flex

In a previous example, “Changing the background color of an error tip in Flex”, we saw how you could change the background color of a Flex error tip by setting the borderColor style on the .errorTip CSS selector.

The following example shows how you can style the Flex .errorTip style dynamically using ActionScript using the static StyleManager.getStyleDeclaration() and setStyle() methods.

Full code after the jump.

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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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