To return an AutoFilter object, use Worksheet.AutoFilter |Worksheet.AutoFilter].
There is only one auto filter per worksheet; by default, the filter is not set and [AutoFilter.Area] will return {{null}}.
When applying an auto filter to a select area of cells on a worksheet, bear in mind:
# [AutoFilter.Area] must be set to an [Area] object on the same worksheet as the auto filter.
# There is only one auto filter per worksheet. If [AutoFilter.Area] is already set, changing {{AutoFilter.Area}} will overwrite the previous area and the auto filter will be applied to the new area.
# {{AutoFilter.Area}} must include all of the cells that the filter applies to. ExcelWriter will not automatically detect the boundaries of the filtered area.
The filter will be removed from the worksheet either by calling the filter's [Clear()|AutoFilter.Clear()] method, by setting the {{Area}} property to {{null}}, or by deleting all the rows (or just the first row that has the filter headers) or all the columns of the filter from the worksheet.
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{code:csharp|title=C#}. There is only one auto filter per worksheet; by default, the filter is not set and AutoFilter.Area will return null . When applying an auto filter to a select area of cells on a worksheet, bear in mind: - AutoFilter.Area must be set to an Area object on the same worksheet as the auto filter.
- There is only one auto filter per worksheet. If AutoFilter.Area is already set, changing
AutoFilter.Area will overwrite the previous area and the auto filter will be applied to the new area. AutoFilter.Area must include all of the cells that the filter applies to. ExcelWriter will not automatically detect the boundaries of the filtered area.
The filter will be removed from the worksheet either by calling the filter's Clear() method, by setting the Area property to null , or by deleting all the rows (or just the first row that has the filter headers) or all the columns of the filter from the worksheet. |