How can I know a row index while iterating with foreach?

Question

in the next example how can I know the current row index?

foreach (DataRow temprow in temptable.Rows)
{
//this.text = temprow.INDEX????
}

Answer 1

int rowIndex = temptable.Rows.IndexOf(temprow);

Answer 2

If you can use Linq, you can do it this way:

foreach (var pair in temptable.Rows.Cast<DataRow>()
                                   .Select((r, i) => new {Row = r, Index = i}))
{
    int index = pair.Index;
    DataRow row = pair.Row;
}

Answer 3

You have to create one yourself

var i = 0;
foreach (DataRow temprow in temptable.Rows)
{
    this.text = i;
    // etc
    i++;
}

or you can just do a for loop instead.