/// <inheritdoc/>
public override bool TryRecycle(
int oldIndex,
int newIndex,
object item,
IMemberSelector selector)
{
var container = ContainerFromIndex(oldIndex);
if (container == null)
{
throw new IndexOutOfRangeException("Could not recycle container: not materialized.");
}
var i = selector != null?selector.Select(item) : item;
container.SetValue(ContentProperty, i);
if (!(item is IControl))
{
container.DataContext = i;
}
var info = MoveContainer(oldIndex, newIndex, i);
RaiseRecycled(new ItemContainerEventArgs(info));
return(true);
}
/// <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;
}
/// <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);
}
/// <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();
}
/// <summary>
/// Creates container controls for a collection of items.
/// </summary>
/// <param name="startingIndex">
/// The index of the first item of the data in the containing collection.
/// </param>
/// <param name="items">The items.</param>
/// <param name="selector">An optional member selector.</param>
/// <returns>The created container controls.</returns>
public IList<IControl> CreateContainers(
int startingIndex,
IEnumerable items,
IMemberSelector selector)
{
Contract.Requires<ArgumentNullException>(items != null);
int index = startingIndex;
var result = new List<IControl>();
foreach (var item in items)
{
var i = selector != null ? selector.Select(item) : item;
var container = CreateContainer(i);
result.Add(container);
}
AddContainers(startingIndex, result);
_containersInitialized.OnNext(new ItemContainers(startingIndex, result));
return result.Where(x => x != null).ToList();
}
/// <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());
}
/// <inheritdoc/>
public IEnumerable <IControl> Materialize(
int startingIndex,
IEnumerable items,
IMemberSelector selector)
{
Contract.Requires <ArgumentNullException>(items != null);
int index = startingIndex;
var result = new List <IControl>();
foreach (var item in items)
{
var i = selector != null?selector.Select(item) : item;
var container = CreateContainer(i);
result.Add(container);
}
AddContainers(startingIndex, result);
_containersInitialized.OnNext(new ItemContainers(startingIndex, result));
return(result.Where(x => x != null).ToList());
}
