| Input Parameters | Significance |
| DtvLong idm | mask Id |
| Output Parameters | Significance |
| no | - |
| Return Code | Significance |
| 0 | no error |
| 1 | error in the post_mask-userexit |
| -1 | mask does not exist |
Before deleting DataView executes the post_mask-userexit defined at the mask. If the userexit returns an error, DataView cancels the delete process.
The function automatically invoke any set mask listener function.
The functions is adjusted to the MAP or hashmap mechanism, respectively.