private void OnRepeaterElementPrepared(ItemsRepeater sender, ItemsRepeaterElementPreparedEventArgs args)
{
var element = args.Element;
if (element != null)
{
var toggleButton = element as ToggleButton;
if (toggleButton != null)
{
toggleButton.Checked += OnChildChecked;
toggleButton.Unchecked += OnChildUnchecked;
// If the developer adds a checked toggle button to the collection, update selection to this item.
if (SharedHelpers.IsTrue(toggleButton.IsChecked))
{
Select(args.Index);
}
}
var repeater = m_repeater;
if (repeater != null)
{
var itemSourceView = repeater.ItemsSourceView;
if (itemSourceView != null)
{
element.SetValue(AutomationProperties.PositionInSetProperty, args.Index + 1);
element.SetValue(AutomationProperties.SizeOfSetProperty, itemSourceView.Count);
}
}
}
}
private void OnRepeaterElementIndexChanged(ItemsRepeater sender, ItemsRepeaterElementIndexChangedEventArgs args)
{
var element = args.Element;
if (element != null)
{
element.SetValue(AutomationProperties.PositionInSetProperty, args.NewIndex + 1);
// When the selected item's index changes, update selection to match
var elementAsToggle = element as ToggleButton;
if (elementAsToggle != null)
{
if (SharedHelpers.IsTrue(elementAsToggle.IsChecked))
{
Select(args.NewIndex);
}
}
}
}
private void OnRepeaterElementClearing(ItemsRepeater itemsRepeater, ItemsRepeaterElementClearingEventArgs args)
{
var element = args.Element;
if (element != null)
{
// If the removed element was the selected one, update selection to -1
var elementAsToggle = element as ToggleButton;
if (elementAsToggle != null)
{
// Revoke
elementAsToggle.Checked -= OnChildChecked;
elementAsToggle.Unchecked -= OnChildUnchecked;
if (SharedHelpers.IsTrue(elementAsToggle.IsChecked))
{
Select(-1);
}
}
}
}
private void OnRepeaterElementPrepared(ItemsRepeater sender, ItemsRepeaterElementPreparedEventArgs args)
{
var element = args.Element;
if (element != null)
{
var toggleButton = element as ToggleButton;
if (toggleButton != null)
{
toggleButton.Checked += OnChildChecked;
toggleButton.Unchecked += OnChildUnchecked;
// If the developer adds a checked toggle button to the collection, update selection to this item.
if (SharedHelpers.IsTrue(toggleButton.IsChecked))
{
Select(args.Index);
}
// TODO: Uno specific - remove when #4689 is fixed
//If SelectedItem/SelectedIndex has already been set by the time the elements are loaded, ensure we sync the selection
if (args.Index == SelectedIndex)
{
toggleButton.IsChecked = true;
}
}
var repeater = m_repeater;
if (repeater != null)
{
var itemSourceView = repeater.ItemsSourceView;
if (itemSourceView != null)
{
element.SetValue(AutomationProperties.PositionInSetProperty, args.Index + 1);
element.SetValue(AutomationProperties.SizeOfSetProperty, itemSourceView.Count);
}
}
}
}