How to Get the User Name That Adds Attachment

'''public void Attachment1_OnAfterAttach(object sender, eBAAttachmentFileEventArgs e) { string attachedUser = string. Empty; eBAAttachments eBAAttachments = new eBAAttachments(); foreach (var item in Attachment1.Categories) { foreach (var item2 in item. Files) { attachedUser+=item2. AttachedUser; } }

Text1.Text=attachedUser; }```