This is not a kind of problem but a code to retrieve the information of particular directory of the system via AIR application using small code.
Solution
In solution i have used the File class to retrieve the inner directory or file information, through which we can get the information like creation-date, extension size etc...
Detailed explanation
Below is the sample code in which i have used desktop directory to retrieve information of files and folders information.
In mxml i have take datagrid to show all directory information, when File's FileListEvent.DIRECTORY_LISTING occurs it gives a array of all directory listing and whole information.