title: Check Folder as Write access,Air app ,Flex
body: <p>how to know the folder as write permission in air application..in my application i am saving txt file in folder,so that i need to test that folder as write permission...</p>
  
  <p>var file:File = File.desktopDirectory.resolvePath("TxtFolder/DataFile.txt");</p>
  
  <p>i need to check "TxtFolder" has write permission...? before saving the file(DataFile.txt)..how can i do it in flex Air as3</p>
  
  <p>Thanks In Advance...    </p>