How to expand cells to the edge?

[Daibaku9999]

I would like to expand cells to the edge of the right.
It looks little unbalance because cells won't expand on the right side like a photo below.

How can I fix this?

[inventvictor]

Try something like this;

DataCell(
                    Container(
                      constraints: BoxConstraints(minWidth: (MediaQuery.of(context).size.width)/8), //where 8 is the number of columns you have
                      child: Text('${merchant.balance}'),
                    )
                  )

[SalahAdDin]

Try something like this;

DataCell(
                    Container(
                      constraints: BoxConstraints(minWidth: (MediaQuery.of(context).size.width)/8), //where 8 is the number of columns you have
                      child: Text('${merchant.balance}'),
                    )
                  )

Must i do this with every collum or just with the wanted ones?

Doing it with every column overflow the horizontal width: