facebook get user pages

Hello friends,

maybe this is not the place to ask but still I'll give it a try.

I need to get the facebook pages that a user can post to (especially where the user is an admin).

What I have now is below and it works.

Uri ex_a = new System.Uri("https://graph.facebook.com/" + user_id + "/likes?access_token=" + token);
WebClient WC_a = new WebClient();
WC_a.DownloadStringCompleted += new System.Net.DownloadStringCompletedEventHandler(wc_accounts);
WC_a.DownloadStringAsync(ex_a);
private void wc_accounts(object ob, DownloadStringCompletedEventArgs e)
{
MessageBox.Show(e.Result);
}

This code works for the current user's id and for a friend's id but, the result does not specify if the user can post to those pages or not, and not even if the user is an admin of one page.

Anyone has a better solution?

Thank you.