set_active_id

Changes the active row of this to the one that has an ID equal to active_id, or unsets the active row if active_id is null.

Rows having a null ID string cannot be made active by this function.

If the id_column property of this is unset or if no row has the given ID then the function does nothing and returns false.

Parameters:

this	a ComboBox
active_id	the ID of the row to select, or null

Returns:

true if a row with a matching ID was found. If a null active_id was given to unset the active row, the function always returns true.