ADC/devnet/flex/fiaw/FiaW_Day2_ProjectArchive/Day2/ex2_03_solution/src/ex2_03_solution.mxml

<?xml version="1.0" encoding="utf-8"?>
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  (the "License"); you may not use this file except in compliance with
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      http://www.apache.org/licenses/LICENSE-2.0

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<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" 
			   minWidth="955" minHeight="850"
			   creationComplete="initApp()">
	
	<!-- Exercise 2.03: Using the addEventListener() method -->
	
	<!-- Styles ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<fx:Style source="Styles.css"/>
	
	<!-- Script ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<fx:Script>
		<![CDATA[
			
			// import statements ----------------------------------------
			
			import mx.controls.Alert;
			import mx.events.CalendarLayoutChangeEvent;
			
			// variable declarations ------------------------------------
			
			
			// getter/setters -------------------------------------------
			
			
			// helper methods -------------------------------------------
			
			
			// event handlers -------------------------------------------
			//The dateChangeHandler() function is the event handler for the two DateChooser instances.
			private function dateChangeHandler(event:CalendarLayoutChangeEvent):void
			{
				Alert.show('You have selected ' + event.target.selectedDate.toDateString());
				
				if ((event.target.id == "returnDate") && (pickupDate.selectedDate > returnDate.selectedDate)) 
				{
					Alert.show("Pickup date must be scheduled before return date.");
				}
				
				if ((event.target.id == "pickupDate") && (pickupDate.selectedDate > returnDate.selectedDate) && (returnDate.selectedDate != null)) 
				{
					Alert.show("Pickup date must be scheduled before return date.")
				}
				
			}
			
			private function initApp():void
			{
				employeeService.send();
				// Add the event listener using ActionScript instead of inline in the DateChooser instances
				pickupDate.addEventListener(CalendarLayoutChangeEvent.CHANGE, dateChangeHandler);
				returnDate.addEventListener(CalendarLayoutChangeEvent.CHANGE, dateChangeHandler);
			}
			
		]]>
	</fx:Script>
	
	<!-- Declarations ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<fx:Declarations>

		<s:HTTPService id="employeeService"
					   url="http://adobetes.com/f45iaw100/remoteData/employees.xml"/>
		
	</fx:Declarations>
	
	<!-- UI components ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	
	<s:Label x="10" y="34" 
			 width="690" height="40" 
			 text="Employee Portal: Vehicle Request Form"
			 styleName="titleHeader"/>
	
	<s:Form x="10" y="70">
		
		<s:FormItem label="Employee:">
			<s:DropDownList id="dropDownList"
							dataProvider="{employeeService.lastResult.employees.employee}"
							labelField="lastName"/>
		</s:FormItem>
		
		<s:FormItem label="Office Phone:">
			<s:TextInput id="phone"
						 text="{dropDownList.selectedItem.phone}"/>
		</s:FormItem>
		
		<s:FormItem label="Mobile Phone:">
			<s:TextInput id="mobilePhone"/>
		</s:FormItem>
		
		<s:FormHeading label="Dates Requested"/>
		
		<!--The two DateChooser instances call the dateChangeHandler() function when the change event is dispatched.-->
		
		<s:FormItem label="Pickup Date:">
			<mx:DateChooser id="pickupDate"/>
		</s:FormItem>
		
		<s:FormItem label="Return Date:">
			<mx:DateChooser id="returnDate"/>
		</s:FormItem>
		
		<s:FormItem>
			<s:Button id="submitButton" 
					  label="Submit Request"/>
		</s:FormItem>
		
	</s:Form>
	
</s:Application>