private void loadData()
{
if (cbMyPoint1.SelectedValue == null)
{
return;
}
int idMyPoint1;
int.TryParse(cbMyPoint1.SelectedValue.ToString(), out idMyPoint1);
MyPointList myPointList = MyPointList.getInstance();
MyPoint myPoint1 = myPointList.getItem(idMyPoint1);
dgv.DataSource = _routeList.ToDataTable(myPoint1);
if (dgv.Columns.Count > 0)
{
dgv.Columns[0].Visible = false;
}
}