Creating a non-editable Spark NumericStepper control in Flex 4

The following example show how you can create a non-editable Spark NumericStepper control in Flex 4 by setting the Boolean editable property on the NumericStepper control’s textDisplay skin part. The user can still change the NumericStepper control’s current value using the Stepper control, but they can no longer type into the NumericStepper control’s internal TextInput control.

The following example(s) require Flash Player 10 and the Adobe Flex 4 SDK. To download the Adobe Flash Builder 4 trial, see To download the latest nightly build of the Flex 4 SDK, see

For more information on getting started with Flex 4 and Flash Builder 4, see the official Adobe Flex Team blog.

<?xml version="1.0" encoding="utf-8"?>
<!-- -->
<s:Application name="Spark_NumericStepper_textDisplay_editable_test"
        <s:CheckBox id="chckBx"
                change="init();" />
            protected function init():void {
                nmStppr.textDisplay.editable = chckBx.selected;
    <s:NumericStepper id="nmStppr"
            horizontalCenter="0" verticalCenter="0"

This entry is based on a beta version of the Flex 4 SDK and therefore is very likely to change as development of the Flex SDK continues. The API can (and will) change causing examples to possibly not compile in newer versions of the Flex 4 SDK.

Apparently this is a “Best Of” post, you can also see my other post on the same topic at “Creating a non-editable Spark NumericStepper control in Flex 4”.