private void btnPrevVol_Click(object sender, EventArgs e)
{
if (iterator.isPrev())
{
iterator.Prev();
UpdateIterator();
}
}
protected void UpdateIterator()
{
iterator.Update(ta);
if (ta.Empty)
{
lblPointer.Text = "0/0";
pnlCommands.Enabled = false;
btnDelete.Enabled = false;
}
else
{
lblPointer.Text = (iterator.Index + 1).ToString() + "/" + ta.Count.ToString();
pnlCommands.Enabled = true;
btnDelete.Enabled = true;
}
VolunteerIterator iterator2 = new VolunteerIterator(ta, iterator.Index);
if (!ta.Empty)
{
pbCurrent.Image = iterator2.Current().Photo;
pbCurrent.Visible = true;
}
else
{
pbCurrent.Visible = false;
}
if (iterator2.isNext())
{
pbNext.Image = iterator2.Next().Photo;
pbNext.Visible = true;
}
else
{
pbNext.Visible = false;
}
if (iterator2.isNext())
{
lblNext2.Visible = true;
}
else
{
lblNext2.Visible = false;
}
iterator2 = new VolunteerIterator(ta, iterator.Index);
if (iterator2.isPrev())
{
pbPrev.Image = iterator2.Prev().Photo;
pbPrev.Visible = true;
}
else
{
pbPrev.Visible = false;
}
if (iterator2.isPrev())
{
lblPrev2.Visible = true;
}
else
{
lblPrev2.Visible = false;
}
}