## add_filter(self, field_index, criteria) {#int-System.String}

Adds a filter for a filter column.



```python

def add_filter(self, field_index, criteria):
    ...
```


| Parameter | Type | Description |
| :- | :- | :- |
| field_index | int | The integer offset of the field on which you want to base the filter 
<br/>(from the left of the list; the leftmost field is field 0). |
| criteria | System.String | The specified criteria (a string; for example, "101"). 
<br/>It only can be null or be one of the cells' value in this column. |
### Remarks

MS Excel 2007 supports multiple selection in a filter column.


### See Also
* module [`aspose.cells`](../../)
* class [`AutoFilter`](/cells/python-net/aspose.cells/autofilter)