Create XML file dynamically from textInput fields

Question

Hi,
I'm very new to Flex and trying to create an application that creates XML files on the users' local computer, based on a users input into textInput fields.
At the moment I'm having trouble finding how to dyamically create an external XML file at all, ideally when the user pushes a button a browseForSave dialog box will open allowing the user to select somewhere on their hard drive to create the XML file.
Can anyone give me a hint what direction I should be heading in?
Thanks

Answer 1

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You could use a SharedObject for small files, but in general Flex does not have access to the local hard drive.
<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
  initialize="init()">
  <mx:Script>
    <![CDATA[
      public var mySO:SharedObject;
      public function init():void{
        mySO = SharedObject.getLocal("mydata");
        if(mySO.data.myData!=null){
          var xml:XML = mySO.data.myData;
          fname.text = xml.fname;
          lname.text = xml.lname;
          email.text = xml.email;
      private function storeData():void{
        var xml:XML =
          <data/>;
        if(fname.text != ""){
          xml.appendChild(<fname>{fname.text}</fname>);
        if(lname.text != ""){
          xml.appendChild(<lname>{lname.text}</lname>);
        if(email.text != ""){
          xml.appendChild(<email>{email.text}</email>);
        mySO.data.myData = xml;
        mySO.flush();
      private function resetData():void{
        mySO.clear();
        fname.text = "";
        lname.text = ""
        email.text = "";
    ]]>
  </mx:Script>
  <mx:Form>
    <mx:FormItem label="First Name:">
      <mx:TextInput id="fname"/>
    </mx:FormItem>
    <mx:FormItem label="Last Name:">
      <mx:TextInput id="lname"/>
    </mx:FormItem>
    <mx:FormItem label="Email:">
      <mx:TextInput id="email"/>
    </mx:FormItem>
  </mx:Form>
  <mx:Button label="Store Data" click="storeData()"/>
  <mx:Button label="Reload Stored Data" click="init()"/>
  <mx:Button label="Delete Stored Data" click="resetData()"/>
</mx:Application>