void SelectOrAdd(int row)
{
UITableViewScrollPosition scroll = UITableViewScrollPosition.None;
NSIndexPath path;
// Calculate the row to select
if (row >= Root[0].Count)
{
// Looks like the last element was selected and no longer exists...
if (Root[0].Count > 0)
{
// Get the path of the current last element
path = NSIndexPath.FromRowSection(Root[0].Count - 1, 0);
scroll = UITableViewScrollPosition.Bottom;
}
else
{
// No elements exist, can't select anything
path = null;
}
}
else
{
path = NSIndexPath.FromRowSection(row, 0);
}
if (path != null)
{
// Select the most appropriate element
SelectRow(path, true, scroll);
return;
}
OnAddClicked(null, EventArgs.Empty);
}
void SelectRow(NSIndexPath path, bool animated, UITableViewScrollPosition scroll)
{
tableView.SelectRow(path, animated, scroll);
// Note: Calling SelectRow() programatically will not cause the
// TableSource's RowSelected method to be called, so we have to
// do it ourselves.
tableView.Source.RowSelected(tableView, path);
}
private void Element_ScrollToRequested(object sender, VerticalCalendarScrollToRequestedEventArgs e)
{
int section, row;
if (this.Element.IsGroupingEnabled)
{
section = this.Element.ItemsSource.IndexOf(e.Group);
row = (this.Element.ItemsSource.ElementAt(section) as IEnumerable <object>).IndexOf(e.Item);
}
else
{
section = 0;
row = this.Element.ItemsSource.IndexOf(e.Item);
}
UITableViewScrollPosition position = 0;
switch (e.Position)
{
case ScrollToPosition.Center:
position = UITableViewScrollPosition.Middle;
break;
case ScrollToPosition.End:
position = UITableViewScrollPosition.Bottom;
break;
case ScrollToPosition.MakeVisible:
position = UITableViewScrollPosition.None;
break;
case ScrollToPosition.Start:
position = UITableViewScrollPosition.Top;
break;
}
this.scrollTo = () => this.Control.ScrollToRow(NSIndexPath.FromRowSection(row, section), position, e.Animated);
}
void SelectRow(NSIndexPath path, bool animated, UITableViewScrollPosition scroll)
{
tableView.SelectRow (path, animated, scroll);
// Note: Calling SelectRow() programatically will not cause the
// TableSource's RowSelected method to be called, so we have to
// do it ourselves.
tableView.Source.RowSelected (tableView, path);
}
public void ToggleExpanded(NSIndexPath indexPath, bool animated, UITableViewScrollPosition position)
{
ScrollToRow (indexPath, position, animated);
ExpandCollapse (indexPath);
}
public virtual void SelectRowAtIndexPath([Optional] NSIndexPath indexPath, bool animated, UITableViewScrollPosition scrollPosition)
{
}
public virtual void ScrollToNearestSelectedRowAtScrollPosition(UITableViewScrollPosition scrollPosition, bool animated)
{
}
public virtual void ScrollToRowAtIndexPath(NSIndexPath indexPath, UITableViewScrollPosition atScrollPosition, bool animated)
{
}
