/// <summary>
/// Adds an entry to the index.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="container">The item container.</param>
public void Add(object item, IControl container)
{
_itemToContainer.Add(item, container);
_containerToItem.Add(container, item);
Materialized?.Invoke(
this,
new ItemContainerEventArgs(0, new ItemContainer(container, item, 0)));
}
/// <inheritdoc/>
public ItemContainerInfo Materialize(int index, object item)
{
var container = new ItemContainerInfo(CreateContainer(item), item, index);
_containers.Add(container.Index, container);
Materialized?.Invoke(this, new ItemContainerEventArgs(container));
return(container);
}
/// <inheritdoc/>
public ItemContainerInfo Materialize(
int index,
object item,
IMemberSelector selector)
{
var i = selector != null?selector.Select(item) : item;
var container = new ItemContainerInfo(CreateContainer(i), item, index);
_containers.Add(container.Index, container);
Materialized?.Invoke(this, new ItemContainerEventArgs(container));
return(container);
}
/// <summary>
/// Adds an entry to the index.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="container">The item container.</param>
public void Add(object item, IControl container)
{
_itemToContainer[item] = container;
if (_itemToContainerSet.TryGetValue(item, out var set))
{
set.Add(container);
}
else
{
_itemToContainerSet.Add(item, new HashSet <IControl> {
container
});
}
_containerToItem.Add(container, item);
Materialized?.Invoke(
this,
new ItemContainerEventArgs(new ItemContainerInfo(container, item, 0)));
}
/// <inheritdoc/>
public IEnumerable <ItemContainer> Materialize(
int startingIndex,
IEnumerable items,
IMemberSelector selector)
{
Contract.Requires <ArgumentNullException>(items != null);
int index = startingIndex;
var result = new List <ItemContainer>();
foreach (var item in items)
{
var i = selector != null?selector.Select(item) : item;
var container = new ItemContainer(CreateContainer(i), item, index++);
result.Add(container);
}
AddContainers(result);
Materialized?.Invoke(this, new ItemContainerEventArgs(startingIndex, result));
return(result.Where(x => x != null).ToList());
}
