//returns back recently deleted point (own), if there is one and its topic still exists
private void TryUndo()
{
if (recentlyDeleted == null)
{
Console.Beep();
return;
}
var np = DaoUtils.clonePoint(PrivateCenterCtx.Get(),
recentlyDeleted.point,
recentlyDeleted.topic,
recentlyDeleted.person,
recentlyDeleted.point.Point);
DaoUtils.DeleteArgPoint(PrivateCenterCtx.Get(), recentlyDeleted.point);
recentlyDeleted = null;
if (np == null)
{
return;
}
lstTopics.SelectedItem = null;
lstTopics.SelectedItem = np.Topic;
lstPoints.SelectedItem = new ArgPointExt(np);
saveProcedure(null, -1);
}