This event occurs only for cells in unbound columns.
Call the Update Cell Value method when changing a cached value outside of a Cell Value Pushed event handler to ensure that the current value is displayed in the control and to apply any automatic sizing modes currently in effect..
For an example that implements virtual mode with a cell-level commit scope, see the Virtual Mode property reference topic.
The following events occur only when the Virtual Mode property is set to Used by the control to commit user input for a cell to the data cache.
Call the Update Row Height Info method when changing the cached row height information outside of a Row Height Info Pushed event handler to ensure that the current value is used in the display of the control.
For more information about implementing virtual mode to manage read/write data with a row-level commit scope, see Walkthrough: Implementing Virtual Mode in the Windows Forms Data Grid View Control.
Because unbound columns are outside the data source, they are ignored by the data source's sorting operations. Data Grid View Combo Box Column class reference topics.