Custom Webparts

Question

Hi, I am having a issue with a custom build web part(essentially it is a control, but web parts are used for Sharepoint and other places.) The problem statement: In my web part I am creating a Datagrid on the fly with some template cols. One of them is EditItem Template col, which has Edit, Update, Cancel link buttons. However when I click on the Update link or Cancel link, it is not firing the event handler, I have an Update StoredProc inside the Update event handler, that needs to be executed. The same code works when I have it in an .aspx page but not as an Webpart, an clues or suggestions??? thanks for your suggestions and insights. Ranjit