Consultor Eletrônico

Status: Unverified

FACT(s) (Environment):

Progress 9.1C
Progress 9.1D

SYMPTOM(s):

Progress 9.1D06 or later

Using following line in code to clear handle variable:

DELETE OBJECT <Buffer-Field-Handle>.

<Buffer-Field-Handle> variable is used again later in the code after this statement has executed

Code run in Progress 9.1C raises errors 7351 and 3135

BUFFER-FIELD <field-name> was not found in buffer <buffer-name>. (7351)

Invalid widget-handle. Not initialized or points to a deleted widget. (3135)

No errors raised in Progress 9.1D

CAUSE:

It is not correct to do DELETE OBJECT on any buffer field object (or on the default buffer handle for a static temp-table). The destruction of these are managed by the 4GL interpreter.
From Progress 9.1D06, if the 4GL code does a DELETE OBJECT on either of these, it will now be ignored and no error will be raised. Prior to this release, the buffer field object would be deleted, hence the errors.

FIX:

Clear the handle variable with the following code rather than using DELETE OBJECT:

<Buffer-Field-Handle> = ?.