Condition-based table column printing

We already created a table with all needed parameters (learn here how to create a table and populate it with data). When previewing our layout all columns of the table are printed. The table footer contains sums for the working hours and expenses.

Now we want to display the expenses column only when it sums up to more than 0. We achieve this by defining a print condition on the column header. Let's double click the expenses header cell and set a print if condition in the print settings:
${sum_expenses} > 0
Because it's a Python expression you could also simply write ${sum_expenses}
${sum_expenses} of 0 will be false (have a look at the expression syntax in the user guide for further explanations).

While we were able to hide the column, our printed report doesn't look that pretty yet by leaving an empty space. That's why we use another print setting - grow weight. It helps to define how to distribute remaining space when columns are missing.

If we set the grow weight to 1 for all columns the space will be distributed evenly among the remaining columns.
However, as the description takes most space in the timesheet we want it to expand exclusively. Therefore, we only set the grow weight of the description. Other columns will keep their width.