Use exception-handling structures to deal with exceptions within the scope of a procedure. try { -- } catch { -- } finally { -- }
Use error events to deal with exceptions within the scope of an object. Page_Error - The Page_Error event handler provides a way to trap errors that occur at the page level. Application_Error - Application_Error event handler to trap errors that occur at the application level.
Custom error pages to display custom error pages for unhandled exceptions at application level.
