Upload and Download Images from MySQL Database

This code will connect to a MySQL database server and allow users to upload and download images stored in a table within that server. The code uses the MySQL.net connector, which is freely available for download from the MySQL website. For the purpose of testing this code, I have allocated a database for use on my server, for the details of the connection information please see the README file. I am quite new to C#, and this is my first attempt at writing a class, let alone a partially compleate class for uploading/downloading images to a database. So if you like this code, I would be thankful for any comments and votes you feel this code deserves. Upon initial running of the application you will be presented with a dialog, asking you to add galleries, please add at least one gallery to this list, otherwise you will be unable to upload images to the database. After this first step, you need to select a database and a table from the comboboxes. If you do not select a table with a compatable gallery layout (as shown in the README files) you will be presented with a error. If you are connecting to my MySQL server the database required is 'testuser' and the table is 'gallery'. I still need to add a function to translate MySQL error codes to their plain english meaning, hopefully this will follow shortly. I would like to thank you for taking the time to view my code, and if you like it, please dont hesitate to vote for it.