| Navigation: ABC Library Reference > FileManager > FileManager Methods >====== PostUpdate(trigger update action post-processing) ====== |    |
PostUpdate( ErrCode, ErrMsg ), returncode
| PostUpdate | Returns confirmation that valid dictionary trigger activity has occurred after an update action, and optionally sets an error code and message to be processed. |
| ErrCode | A string constant, variable, EQUATE, or expression that represents an error code. |
| ErrMsg | A string constant, variable, EQUATE, or expression that represents an error message. |
| returncode | Indicates if an error occurs. |
The PostUpdate method is a virtual method that returns a TRUE value by default if post update trigger activity was processed normally. The developer must set the return level to FALSE if any problems occurred in the post update trigger activity code. When PostUpdate returns FALSE, an ERRORCODE 100 (trigger error) is posted. If ErrCode is set, then FILEERRORCODE will be set to the contents of ErrCode when the error is processed by the ErrorClass object for the associated file (table). Similarly, FILEERROR will be set to ErrMsg.
The PostUpdate method is accessible from a table's trigger properties located in the Dictionary Editor, or, in the Global Embeds of a target application
Implementation:
PostUpdate is implemented using the file driver callback mechanism, therefore, this method will have access to all variables that the File Manager has access to. These variables and the ones added in the Data section of the method will allow the developer to insert code that will be executed after a CHANGE action for a file.
Return Data Type: BYTE
Example:
CODE
!Push any pending errors on stack, to allow trigger error detection
PUSHERRORS()
ReturnValue = PARENT.PostUpdate(ErrCode,ErrMsg) !returns TRUE by default
!trigger processing here ' optionally set ErrCode, ErrMsg and ReturnValue
POPERRORS()
!restore errors saved on the stack
RETURN ReturnValue
See Also: PreDelete , PostDelete , PostInsert ,