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BUILT-IN MATHEMATICA SYMBOL

CellEventActions

CellEventActions
is an option for Cell that gives a list of actions to perform when specified events occur in connection with a cell in a notebook.

CellEventActions specifies that should be evaluated whenever occurs in connection with a cell.

Settings for CellEventActions are often defined at the level of stylesheets, rather than for individual cells or notebooks.

By default, any action specified for an event by CellEventActions will override any default action that Mathematica would take for that event.

The default behavior can be changed by including rules for PassEventsDown or PassEventsUp in the list given as the setting for CellEventActions.

Create a cell that will change color when you click within the cell:

Out[1]=

Make an action occur when the Enter key is pressed in a cell:

Turn the cell background green when clicking in the cell: