/// <summary>
/// CollectionChanged by the child in section
/// </summary>
/// <param name="sender">Sender.</param>
/// <param name="e">The ${ParameterType} instance containing the event data.</param>
public void OnSectionCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.NewItems != null)
{
e.NewItems.Cast <Cell>().ForEach(cell => cell.Parent = this);
}
SectionCollectionChanged?.Invoke(sender, e);
}
void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
var oldCells = e.OldItems?.OfType <CellBase>() ?? Enumerable.Empty <CellBase>();
foreach (var oldCell in oldCells)
{
oldCell.PropertyChanged -= OnItemPropertyChanged;
}
var newCells = e.NewItems?.OfType <CellBase>() ?? Enumerable.Empty <CellBase>();
foreach (var newCell in newCells)
{
newCell.PropertyChanged += OnItemPropertyChanged;
}
SectionCollectionChanged?.Invoke(this, e);
}
private void ChildCollectionChanged(object sender, NotifyCollectionChangedEventArgs args)
{
SectionCollectionChanged?.Invoke(this, EventArgs.Empty);
}
void ChildCollectionChanged(object sender, NotifyCollectionChangedEventArgs notifyCollectionChangedEventArgs)
{
SectionCollectionChanged?.Invoke(sender, notifyCollectionChangedEventArgs);
}
void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
SectionCollectionChanged?.Invoke(this, e);
}