I'm using Crystal Reports in Visual Studio 2010. My report works and displays as it should but I would like to limit a user to only be able to run a report on their specific "mailboxes". I can set the datasource for the mailbox parameter to a field in the database but it allows any mailbox to be selected. I can create a dataset that filters the table based on their login or profile.UserName which queries the correct data, but how to I pull data from that dataset into a dropdown box for the report parameter. Is there a way to not use a dataset and define a filter in the parameter setup?