/// <summary>
/// Inserts an element into the <see cref="T:WindowsFirewallHelper.Helpers.ActiveCollection" /> at the specified index.
/// </summary>
/// <param name="index">The zero-based index at which <paramref name="item" /> should be inserted.</param>
/// <param name="item">The object to insert. The value can be null for reference types.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// <paramref name="index" /> is less than zero.-or-
/// <paramref name="index" /> is greater than <see cref="P:WindowsFirewallHelper.Helpers.ActiveCollection.Count" />.
/// </exception>
protected override void InsertItem(int index, T item)
{
base.InsertItem(index, item);
ItemsModified?.Invoke(this, new ActiveCollectionChangedEventArgs <T>(
ActiveCollectionChangeType.Added, item));
}
/// <summary>
/// Removes the element at the specified index of the <see cref="T:WindowsFirewallHelper.Helpers.ActiveCollection" />.
/// </summary>
/// <param name="index">The zero-based index of the element to remove.</param>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="index" /> is less than zero.-or-
/// <paramref name="index" /> is equal to or greater than
/// <see cref="P:WindowsFirewallHelper.Helpers.ActiveCollection.Count" />.
/// </exception>
protected override void RemoveItem(int index)
{
var item = Items[index];
base.RemoveItem(index);
ItemsModified?.Invoke(this, new ActiveCollectionChangedEventArgs <T>(
ActiveCollectionChangeType.Removed, item));
}
/// <summary>
/// Replaces the element at the specified index.
/// </summary>
/// <param name="index">The zero-based index of the element to replace.</param>
/// <param name="item">The new value for the element at the specified index. The value can be null for reference types.</param>
/// <exception cref="T:System.ArgumentOutOfRangeException">
/// <paramref name="index" /> is less than zero.-or-
/// <paramref name="index" /> is greater than <see cref="P:WindowsFirewallHelper.Helpers.ActiveCollection.Count" />.
/// </exception>
protected override void SetItem(int index, T item)
{
var replaced = Items[index];
base.SetItem(index, item);
ItemsModified?.Invoke(this, new ActiveCollectionChangedEventArgs <T>(
ActiveCollectionChangeType.Removed, replaced));
ItemsModified?.Invoke(this, new ActiveCollectionChangedEventArgs <T>(
ActiveCollectionChangeType.Added, item));
}
/// <summary>
/// Removes all elements from the <see cref="T:WindowsFirewallHelper.Helpers.ActiveCollection" />.
/// </summary>
protected override void ClearItems()
{
var items = this.ToArray();
base.ClearItems();
foreach (var item in items)
{
ItemsModified?.Invoke(this, new ActiveCollectionChangedEventArgs <T>(
ActiveCollectionChangeType.Removed, item));
}
}
protected void OnCollectionModified(CollectionModifiedEventArgs <T> e) => ItemsModified?.Invoke(this, e);