Implementing a ProgressBar in Flex 2 when a form is finished loaded.

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" 
				layout="absolute"  
				creationComplete="handleCreationComplete()">
	
	<mx:Script>
		<![CDATA[
			import mx.controls.ProgressBar;
			import mx.collections.ArrayCollection;
			import mx.rpc.events.FaultEvent;
			import mx.rpc.events.ResultEvent;
			import mx.controls.Alert;
			
			// Current Maintenance Owner Array Collection
			[Bindable] private var maintenanceOwnerAC:ArrayCollection;
			// Current Countries Array Collection
			[Bindable] private var countryAC:ArrayCollection;
			// Current Countries Array Collection
			[Bindable] private var naicsAC:ArrayCollection;		
			// USA states Array Collection
			[Bindable] private var usaStatesAC:ArrayCollection;
			// Functional Currency Array Collection
			[Bindable] private var currencyAC:ArrayCollection;
			
			private function handleCreationComplete():void
			{
				// Display the progress bar
				loadingbar.x = (myForm.width / 2) - (loadingbar.width / 2);
				loadingbar.y = (myForm.height / 2) - (loadingbar.height / 2);
				loadingbar.visible = true;
				
				comboBoxRO.get_current_maintenance_owners();
				comboBoxRO.get_current_countries();
				comboBoxRO.get_current_naics_codes();
				comboBoxRO.get_usa_states();
				comboBoxRO.get_functional_currencies();
				
				// Hide the progress bar 
				loadingbar.visible = false;
			}
			
			// Populate country array collection and set combox box to visible when completed
			private function maintenanceOwnerQueryResultHandler(evt:ResultEvent):void{
				maintenanceOwnerAC = evt.result as ArrayCollection;
				maintenanceOwner_cb.visible = true;
 
			}
			// Populate country array collection and set combox box to visible when completed
			private function countryQueryResultHandler(evt:ResultEvent):void{
				countryAC = evt.result as ArrayCollection;
				CountryIncorporated_cb.visible = true;
			}
			// Populate NAICS array collection and set combox box to visible when completed
			private function naicsQueryResultHandler(evt:ResultEvent):void{
				naicsAC = evt.result as ArrayCollection;
				NAICSCode_cb.visible = true;
			}
			// Populate USA states array collection and set combox box to visible when completed
			private function usaStatesQueryResultHandler(evt:ResultEvent):void{
				usaStatesAC = evt.result as ArrayCollection;
				USAStateInc_cb.visible = true;
			}
			// Populate functional currency array collection and set combox box to visible when completed
			private function currencyQueryResultHandler(evt:ResultEvent):void{
				currencyAC = evt.result as ArrayCollection;
				functionalCurrency_cb.visible = true;
			}
 
			private function faultHandler(evt:FaultEvent):void{
				mx.controls.Alert.show("The following error(s) occurred: " + evt.fault.faultDetail);
			}
			
			private function categoryChangeListener(evt: Event):void {
			   Alert.show(evt.currentTarget.selectedItem.MAINT_OWNER, "Alert Box", Alert.OK);
			} 
 
			
		]]>
	</mx:Script>
	
	<!-- Get current maintenance owners-->
	<mx:RemoteObject id="comboBoxRO"
		destination="ColdFusion"
		source="goldnet.cfc.create_new_entity.ro_combo_boxes"
		endpoint="http://My_Machine/flex2gateway/"
		showBusyCursor="false">
			<mx:method name="get_current_maintenance_owners"
				   result="maintenanceOwnerQueryResultHandler(event)" 
				   fault="faultHandler(event)" />
			
			<mx:method name="get_current_countries"
				   result="countryQueryResultHandler(event)" 
				   fault="faultHandler(event)" />	
				   
			<mx:method name="get_current_naics_codes"
				   result="naicsQueryResultHandler(event)" 
				   fault="faultHandler(event)" />  
				   
			<mx:method name="get_usa_states"
				   result="usaStatesQueryResultHandler(event)" 
				   fault="faultHandler(event)" /> 
				   
			<mx:method name="get_functional_currencies"
				   result="currencyQueryResultHandler(event)" 
				   fault="faultHandler(event)" />   
				   
	</mx:RemoteObject>
	<mx:Panel x="10" y="10" width="98%" height="95%" layout="absolute" title="Create New Legal Entity">
		<mx:ProgressBar width="200" id="loadingbar" mode="polled" visible="false" />
		
		<mx:Form x="10" id="myForm">
			<mx:FormItem label="Entity Creation Type:">
				<mx:ComboBox id="EntityCreationType_cb">
					<mx:ArrayCollection>
					        <mx:Object label="" data=""/>
					        <mx:Object label="New Incorporation" data="I"/>
					        <mx:Object label="Entity Acquisition" data="A"/>
						</mx:ArrayCollection>
				</mx:ComboBox>
			</mx:FormItem>
			
			<mx:FormItem label="Legal Entity Name:">
				<mx:TextInput id="LegalEntityName_field" width="500" maxChars="100"/>
			</mx:FormItem>
			
			
			<!--change="categoryChangeListener(event)" -->
			
			
			<mx:FormItem label="Maintenance Owner:"> 
				<mx:ComboBox id="maintenanceOwner_cb" dataProvider="{maintenanceOwnerAC}" labelField="MAINT_OWNER_DESC"  visible="false"  />
			</mx:FormItem>
			
			<mx:FormItem label="Country Incorporated:">
				<mx:ComboBox id="CountryIncorporated_cb" dataProvider="{countryAC}" labelField="COUNTRY_NAME"  visible="false" />
			</mx:FormItem>
			
			<mx:FormItem label="Legal Entity Type:">
				<mx:ComboBox id="LegalEntityType_cb">
					<mx:ArrayCollection>
					        <mx:Object label="" data=""/>
					        <mx:Object label="Corporation" data="1"/>
					        <mx:Object label="Limited Liability Company" data="2"/>
					        <mx:Object label="Partnership" data="3"/>
					        <mx:Object label="Tax Exempt" data="4"/>   
					        <mx:Object label="Trust" data="5"/> 
							</mx:ArrayCollection>
				</mx:ComboBox>
			</mx:FormItem>
			
			<mx:FormItem label="Local Tax Type:">
				<mx:ComboBox id="LocalTaxType_cb">
					<mx:ArrayCollection>
					        <mx:Object label="" data=""/>
					        <mx:Object label="Corporation" data="1"/>
					        <mx:Object label="Disregarded Entity" data="2"/>
					        <mx:Object label="Partnership" data="3"/>
					        <mx:Object label="Tax Exempt" data="4"/>   
					        <mx:Object label="Trust" data="5"/> 
							</mx:ArrayCollection>
				</mx:ComboBox>
			</mx:FormItem>
			<mx:FormItem label="US Tax Type:">
				<mx:ComboBox id="USTaxType_cb">
					<mx:ArrayCollection>
					        <mx:Object label="" data=""/>
					        <mx:Object label="Corporation" data="1"/>
					        <mx:Object label="Disregarded Entity" data="2"/>
					        <mx:Object label="Partnership" data="3"/>
					        <mx:Object label="Tax Exempt" data="4"/>   
					        <mx:Object label="Trust" data="5"/> 
							</mx:ArrayCollection>
				</mx:ComboBox>
			</mx:FormItem>
			
			<mx:FormItem label="NAICS Code:">
				<mx:ComboBox id="NAICSCode_cb" dataProvider="{naicsAC}" labelField="NAICS_DESC" data="NAICS_CODE"   visible="false" />
			</mx:FormItem>
			
			<mx:FormItem label="US State of Incorporation:">
				<mx:ComboBox id="USAStateInc_cb" dataProvider="{usaStatesAC}" labelField="STATE_NAME"  visible="false" />
			</mx:FormItem>
			
			<mx:FormItem label="Functional Currency:">
				<mx:ComboBox id="functionalCurrency_cb" dataProvider="{currencyAC}" labelField="FUNC_CURRENCY_DESC"  visible="false" />
			</mx:FormItem>
			<mx:FormItem label="Date of Incorporation:">
				<mx:DateField id="dateIncorporated_df"/>
			</mx:FormItem>
			<mx:FormItem label="Date of Acquisition:">
				<mx:DateField id="dateAcquired_df"/>
			</mx:FormItem>
			
		</mx:Form>
	</mx:Panel>
</mx:Application>

                                              

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