Take the 2-minute tour ×  i need to add some security to a
Document Library, i want to be able to have multiple folders and
multiple documents. This feature would provide users with proper
right to modify, read, hide documents and folders depending on
what the owner of the document agreed on.  Exemple: UserA
creates a documentA, UserA shares documentA to UserB with write
and read permission. UserA gives UserC read only permission for
documentA. UserD cannot see DocumentA because UserA did not give
any permissions.  The user would go through a custom interface,
create a folder, upload a document through custom controls and
then have a UI to give rights to other site users to read and/or
write the document.  For this i created a Document Library with
custom types, MyFolders and MyDocument. I want my users to be
able to change security/permissions settings of document they
upload. So when i present the Document library to a user i can
show the right files he has access to and so on.  I would like
to write this w