Binding a combobox to a specific column of an SQL database

Question

Experts
I have what's probably an easy problem for most of you.  I have a form with a combobox that I'm trying to populate with data from a sql database. I have created a Data Source called Tickets and changed the desired column(number) to a combobox, then dragged it onto my form.  However, when the form inilizes, the combobox only displays the first number from the database.  I assumed the combobox would display every number contained within the database.  Can anyone provide a demonstration in regards to populating a combobox from a specific columns of an SQL database?