frameworks/projects/framework/asdoc/en_US/mx/controls/examples/DateFieldExample.mxml

<?xml version="1.0"?>
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  this work for additional information regarding copyright ownership.
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      http://www.apache.org/licenses/LICENSE-2.0

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  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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<!-- Simple example to demonstrate the Halo DateField control. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx">

    <fx:Script>
        <![CDATA[
            // Event handler for the Halo DateField change event.
            private function dateChanged(date:Date):void {
                if (date == null) {
                    selection.text = "Date selected: ";
                } else {
                    selection.text = "Date selected: " + date.getFullYear().toString() + '/' + (date.getMonth()+1).toString() + '/' + date.getDate();
                }
            }
        ]]>
    </fx:Script>

    <fx:Declarations>
        <mx:DateFormatter id="df"/>
    </fx:Declarations>

    <s:Panel title="Halo DateField Control Example"
            width="75%" height="75%"
            horizontalCenter="0" verticalCenter="0">
        <s:VGroup left="10" right="10" top="10" bottom="10">
            <s:Label width="100%"  color="blue"
                    text="Select a date in the Halo DateField control. Select it again to clear it."/>

            <s:Label text="Basic Halo DateField:"/>
            <mx:DateField id="dateField1" yearNavigationEnabled="true" 
                change="dateChanged(DateField(event.target).selectedDate)" />
            <s:Label id="selection"  color="blue" text="Date selected:" />

            <mx:Spacer height="30" />

            <s:Label text="Disable dates on or before June 1, 2006."/>
            <mx:DateField id="dateField2" yearNavigationEnabled="true" 
                disabledRanges="{[ {rangeEnd: new Date(2006, 5, 1)} ]}" />
            <s:Label  color="blue" text="Date selected: {df.format(dateField2.selectedDate)}"/>
        </s:VGroup>
    </s:Panel>

</s:Application>