Gridview Footer calculator

Revision 3
Hi guys

Trying to create a footer calculator. Problem is now the if() statemets are skiped. any ideas Y this hapens? Check the code below:

protected void grvTravelClaims_RowDataBound(object sender, GridViewRowEventArgs e)
{
    
    decimal _total = 0.0M;
    int totalItems = 0;
  

    if (e.Row.RowType == DataControlRowType.DataRow)
    {
    Label lblKillometers = (Label)e.Row.FindControl("lblKillometers");
    decimal killometers = Decimal.Parse(lblKillometers.Text);
        _total += killometers;
        totalItems += 1;
       
    }
  if (e.Row.RowType == DataControlRowType.Footer)
    {
Label lblTotalKillometers = (Label)e.Row.FindControl("lblTotalKillometers");
lblTotalKillometers.Text = _total.ToString();
    }
}