When adding a new row in the mm buttons,
Where is the row added? Top or bottom?

When i added the following code from a sample that MM had in the userguide it says to use :

DataRow dr = ds.Tables[tableName].Rows[0];

But when i check the dr object it has two rows .
zero as the first row which is from the server filled with data, and 1 for the second row which is the new row i added.

How do i find the new row, if the above syntax is not correct assumption.

TIA