converting a negative value to 0
===

I am working with a datagrid view, this datagrid view allows the user to edit cells, I want to set it up so that when a user inserts a negative value, it will convert this value to 0, what would be the best way to code this, i have created the followin code below, it appears to check for negative values, however it does not change the value to zero 

    if (Convert.ToInt32(dgvDetails.CurrentRow.Cells[2].Value.ToString()) < -0)
                    {
                       intQtyInsp = 0;
                    }
                    else
                    {
                    intQtyInsp = Int32.Parse(row.Cells[2].Value.ToString());