Add value to datatable

i had to put a value in a datatable whith a counter:

DT_Extracted.Rows(i).ItemArray(1)

“i” is a counter initilysed at 0.

but in the first loop it shows the Following message “Can’t find ligne 2” wheareas i’m in the ligne 0 !

Hi
Did we try with ADD DATAROW activity
Cheers @abdel