Re: [flexcoders] Flex Basics

Wed, 24 May 2006 09:51:27 -0700

hie,
well i came across some example which can help u.
but niether it has combo box nor classes
but it uses event listeners.. and also uses custom components
 [if u r very new to flex, might be u dont get it]
custom component is nothing but some component which is designed on ur needs/. and event listeners are something that respond to events.

but if u try to run the example below then it could be that similar kinda output u required.
so try out this example []

main.mxml
----------------
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:local="*">
   
    <mx:Script>
        <![CDATA[
            [Bindable]
            public var initDG:Array = [
                {Company: 'Acme', Contact: 'Bob Jones',
                        Phone: '413-555-1212', Date: '5/5/05'},
                {Company: 'Allied', Contact: 'Jane Smith',
                        Phone: '617-555-3434', Date: '5/6/05'} ];
        ]]>
    </mx:Script>

<mx:DataGrid id="myGrid" dataProvider="{initDG}" variableRowHeight="true">   
        <mx:columns>
            <mx:DataGridColumn dataField="Company"
                itemRenderer="RendererDGListData"/>
            <mx:DataGridColumn dataField="Contact"
                itemRenderer="RendererDGListData"/>
            <mx:DataGridColumn dataField="Phone"
                itemRenderer="RendererDGListData"/>
            <mx:DataGridColumn dataField="Date"
                itemRenderer="RendererDGListData"/>
        </mx:columns>       
    </mx:DataGrid>    
</mx:Application>

-----------------
RendererDGListData
------------------
<?xml version="1.0"?>
<!-- RendererDGListData.mxml -->
<mx:TextArea xmlns:mx="http://www.adobe.com/2006/mxml" preinitialize ="initTA();">

    <mx:Script>
        <![CDATA[
       
            import mx.controls.dataGridClasses.DataGridListData;
            import flash.events.Event;
       
            public function initTA():void {
                addEventListener("dataChange", handleDataChanged);
            }   

            public function handleDataChanged(event:Event):void {
                // Cast listData to DataGridListData.
                var myListData:DataGridListData = DataGridListData(listData);
               
                // Access information about the data passed to the item renderer.
                text="row index: " + String(myListData.rowIndex) +
                    " column index: " + String(myListData.columnIndex);
            }   
        ]]>
    </mx:Script>
</mx:TextArea>

and then  execute main.mxml

bye.

sarvesh610 <[EMAIL PROTECTED]> wrote:
Hi,
I am new to Flex, have been a J2EE person for a longtime. I have
developed an application which queries the database and returns me a
value object which has a list and vector. Now I need to use Flex as a
user interface. I have called the class using the remote-object, but
then how do I use the List and the Vector to display.
Also I am a bit confused about the <mx:ComboBox>, how can I use the
dataprovider to use my value object to display the companyDesc as the
label and data as the ric if I am using the <mx:Object>

Thanks
S





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