在asp.net中编辑/删除按钮c＃

I have a form that lists customers pulled from a db. The form also consists of edit and delete buttons in order to update an existing customer's record. I am able to pull back all the table data for the customers on the first page. However, when I click the "Edit" button next to a customer it does not bring back any data but just brings back a blank form. I am referencing the CustomerID in the "Edit" hyperlink with a NavigateURL link. I have read and read and am getting confused about how to do this. Can anyone see what I may be doing wrong? Getting very frustrated. Please help.I have a form that lists customers pulled from