row operations
For(x=1,x<=N Rows(dt),x++,
If(IsMissing(Column( dt, "Actual Finish Date_" )[x]),
Column( dt, "bouge pas" )[x] = Column( dt, "Operation Due Date_" )[x] - :Operation Start Date_ [x-1],
Column( dt, "bouge pas" )[x] = Column( dt, "Actual Finish Date_" )[x] - :Actual Execution Start Date_ [x]
);
);
Hello, my problem is that I want in the first line of the for, the line x-1 for the co...