public void FindPrevious()
{
if (_l_items.Count == 0)
{
_index = -1;
MessageBox.Show("No found element", String.Format("{0} elements found", _l_items.Count));
return;
}
_index = _index - 1;
if (_index < 0)
{
_index = 0;
MessageBox.Show("First element found", String.Format("{0} elements found", _l_items.Count));
}
}
#endregion private void btnPrevious_Click(object sender, EventArgs e)
{
_fr.FindPrevious();
_fr.LocateCurrentElement();
ShowItem();
txtState.Text = StateCurrentItem() + " previous found.";
}