how to write a folder structure in c#...

[san@1990]

(eg) folder id name parent id
1 doc 0
2 files 1
3 progarm 2
4 struct 0
5 name 4

how to display this structure in c# or sql...pls any one help me

[TheTechguys]

I need a simple function which will take FileInfo destination_directory_name input, and get on the path of the file from fileinfo and repeating it in destination_directory_name pass the second parameter.