before_calculate method

before_calculate(self, sheet_index, row_index, col_index)

Implement this method to do business before calculating one cell.


def before_calculate(self, sheet_index, row_index, col_index):
    ...

Parameter	Type	Description
sheet_index	int	Index of the sheet that the cell belongs to.
row_index	int	Row index of the cell
col_index	int	Column index of the cell