<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
    backgroundColor="#FFFFFF"
    backgroundAlpha="0"
    xmlns:custom="components.*">

    <mx:Script>
        <![CDATA[
            import mx.controls.Alert;

            private function show(event:Event):void {
                var sday:Number = sdate.daysCB.selectedIndex + 1;
                var smonth:Number = sdate.monthsCB.selectedIndex;
                var syear:Object = sdate.yearsCB.selectedItem.toString();

                var eday:Number = edate.daysCB.selectedIndex + 1;
                var emonth:Number = edate.monthsCB.selectedIndex;
                var eyear:Object = edate.yearsCB.selectedItem.toString();

                var startDate:Date = new Date(syear,smonth,sday);
                var endDate:Date = new Date(eyear,emonth,eday);

                if (endDate < startDate){
                    Alert.show("Please enter a end date greater than the start date.");
                }else{
                    Alert.show("The record search is between " + dateFormat.format(startDate)  + ' and ' +
dateFormat.format (endDate));
                }
            }
        ]]>
    </mx:Script>

    <mx:DateFormatter id="dateFormat"
        formatString="MM/DD/YYYY" />

    <mx:Form>
        <mx:FormHeading label="Record Search" />
        <mx:FormItem label="Start Date">
            <custom:ComboBoxDateEntry id="sdate" />
        </mx:FormItem>
        <mx:FormItem label="End Date">
            <custom:ComboBoxDateEntry id="edate" />
        </mx:FormItem>
        <mx:FormItem>
            <mx:Button id="myButton"
                label="Search"
                click="show(event)" />
        </mx:FormItem>
    </mx:Form>

</mx:Application>

<?xml version="1.0" encoding="utf-8"?>

<mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml"
    xmlns:custom="com.mycustom.components.*"
    creationComplete="init()">
    <mx:Script>
        <![CDATA[
            import mx.events.ListEvent;

            [Bindable]
            private var days:Array;

            [Bindable]
            private var years:Array = new Array();

            private function init():void{
                this.monthsCB.addEventListener(ListEvent.CHANGE,monthsHandler);
                var now:Date = new Date();

                setDays(now.getMonth());
                setYears(now.getFullYear());

                this.daysCB.selectedIndex = 0;
                this.yearsCB.selectedIndex = years.indexOf(now.getFullYear());
            }

            private function monthsHandler(event:ListEvent):void{
                setDays(event.currentTarget.selectedIndex);
                this.daysCB.selectedIndex = 0;
            }

            private function setDays(month:int):void{
                this.days = new Array();
                var i:int;

                if (month == 0 || month == 2 || month == 4 || month == 6 || month == 7 || month == 9 || month == 11){
                    for(i=1; i<=31; i++)
                        this.days.push(i);

                    }else if (month == 3 || month == 5 || month == 8 || month == 10){
                        for(i=1; i<=30; i++)
                            this.days.push(i);

                    }else if (month == 1){
                        if (yearsCB.selectedIndex % 4 == 0){
                            for(i=1; i<=29; i++)
                                this.days.push(i);
                        }else{
                            for(i=1; i<=28; i++)
                                this.days.push(i);
                        }
                    }
                }

            private function setYears(year:int):void{
                var j:int;
                for(j=1950; j<=year; j++){
                    this.years.push(j);
                }
            }
        ]]>
    </mx:Script>

    <custom:ComboBoxMonths id="monthsCB"/>
    <mx:ComboBox id="daysCB" dataProvider="{this.days}" width="50"/>
    <mx:ComboBox id="yearsCB" dataProvider="{this.years}" width="65"/>
</mx:HBox>