## check_custom_number_format property


Indicates whether checking custom number format when setting Style.Custom, default is false.
### Definition:
```python
@property
def check_custom_number_format(self):
    ...
@check_custom_number_format.setter
def check_custom_number_format(self, value):
    ...
```

### See Also
* module [`aspose.cellsgridjs`](../../)
* class [`GridWorkbookSettings`](/cells/python-net/aspose.cellsgridjs/gridworkbooksettings)