in simple web filer ,can value be = the name of dynamically generated text box's name

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C#

ASP.NET

i m using a simple web filer ,which i got from this website only .(if u want search simple webfiler in this website.)
In web.config file of filer.aspx,there is app settings.

<appsettings>
		<add key="WFRoot" value="../" /></appsettings>

Now i have made manager_registeration.aspx,where i register manager and userid nd pwd goes to sql database.then from login page manager enters and creates users.(users details also gets in same db table of manager)
NOw when manager logins then he clicks to "view files" option which navigates him to filer.aspx where he can view all the files of the server.i want that he should view only his file and the files of users which are under this current manager(when he enters filer.aspx),not the files of other managers .so that when a user uploads data same data manager can view suddenly and download it.

so the heirarchy of folders are
other server folders
{
AllData(folder)
{
manager1(folder)-user1(folder)-receive-data(folder)
-send_data(folder)
-user2-(folder)-receive-data(folder)
-send_data(folder)
manager2(folder)-user1(folder)-receive-data(folder)
-send data(folder)
etc.managers.
}
}
when manager navigates to " filer.aspx" from his session page, by clicking "view files" he should see only his folder and folders of his users and not another managers folders.

now what i have done is in web.config of filer.aspx(which i got from this website only)

in value="AllDta"/ so when managers logins he see other managers folders also.which were also dynamically created. how can i put in value="folder name of manager which are dynamically created while registeration of manager " or any other solution for this problem ,if not this.
i just want manager can not view other managers folder in filer.aspx