Grid - Date picker filter - "Is after On" and "Is before" are inverted if null

[Salvatore]

good morning,
i am facing a strange behavour with the datetime filter in grid.
when i set a date on the second filter about the "Is before" and none in the "Is after on", launch the grid data and re-open the date filter, values are inverted, see attachments "before" and "after".
can you tell me how to block the filter positions? "is after on" set always as first and "Is before" alwasy set as second.

thanks in advance

[Salvatore]

is it possible to block duplication of filters like having twice "Is after on"? see attachment

[Mihaela]

Hello Salvatore,

Thank you for your report.

Indeed, the described behavior is not expected, so I have logged it as a bug in our Public Feedback Portal on your behlaf. Follow the item to receive status updates:

Filter expressions are inverted when reopening the column filter menu

As a token of appreciation for your report, I have updated your Telerik account points.

Regards,
Mihaela
Progress Telerik