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I need to display and edit time of day in the grid cell. 

I’m using CExtGridCellDuration - derived class for this (with days turned off), but how can I turn off combo button for this cell?It displays empty list anyways (what is it good for?).

Is there a choice to use increase/decrease buttons for changing of the selected data ? (hour/minute)

Thank you.

You can see different date/time and duration grid cells with/without built-in cell buttons on the grid page in the ProfUIS_Controls sample application. There are 3 built-in buttons supported by the generic CExtGridCell class and all cell classes derived from it : up-down, drop-down and ellipsis. They can be displayed/hidden programmatically by adding/removing the __EGCS_BUTTON_UPDOWN, __EGCS_BUTTON_DROPDOWN, and __EGCS_BUTTON_ELLIPSIS grid cell styles by invoking the CExtGridCell::ModifyStyle() method. The mouse wheel can be used for modifying selection in the duration grid cell but the up-down button is part of duration grid cell and can be used outside the in-place editor only. We can regard this as a feature request.