public override void RemoveAt(int index)
{
var e = new EventListIndexedArgs <T>()
{
Item = this[index],
Index = index
};
base.RemoveAt(index);
OnRemoved(e);
OnChanged();
}
public override void Insert(int index, T item)
{
base.Insert(index, item);
var e = new EventListIndexedArgs <T>()
{
Item = item,
Index = index
};
OnAdded(e);
OnChanged();
}
public override void Add(T item)
{
base.Add(item);
var e = new EventListIndexedArgs <T>()
{
Item = item,
Index = base.Count - 1
};
OnAdded(e);
OnChanged();
}
public override void Clear()
{
for (var i = 0; i < Count; i++)
{
var e = new EventListIndexedArgs <T>()
{
Item = this[i],
Index = i
};
OnRemoved(e);
}
OnChanged();
base.Clear();
}
public override T this[int index]
{
get => base[index];
set
{
var old = base[index];
var pre = new EventListIndexedArgs <T>()
{
Item = old,
Index = index
};
var post = new EventListIndexedArgs <T>()
{
Item = value,
Index = index
};
base[index] = value;
OnRemoved(pre);
OnAdded(post);
OnChanged();
}
}
protected virtual void OnRemoved(EventListIndexedArgs <T> e)
{
Removed?.Invoke(this, e);
}
