Class

VirtualQueryableCollectionView

Initializes a new instance of the VirtualQueryableCollectionView class.

Declaration

public VirtualQueryableCollectionView()

Initializes a new instance of the VirtualQueryableCollectionView class.

Declaration

public VirtualQueryableCollectionView(IEnumerable source)

Parameters

Initializes a new instance of the VirtualQueryableCollectionView class.

Declaration

public VirtualQueryableCollectionView(IEnumerable source, Type itemType)

Parameters

Gets a value that indicates whether a new item can be added to the collection.

Declaration

public override bool CanAddNew { get; }

Property Value

Overrides QueryableCollectionView.CanAddNew

Gets a value that indicates whether an item can be removed from the collection.

Declaration

public override bool CanRemove { get; }

Property Value

Overrides QueryableCollectionView.CanRemove

Protected accessor to private count.

Declaration

protected override int InternalCount { get; }

Property Value

Overrides QueryableCollectionView.InternalCount

Gets the list created from resulting query after applying filtering, sorting, grouping and paging.

Declaration

protected override IList InternalList { get; }

Property Value

Overrides QueryableCollectionView.InternalList

Declaration

public bool IsFixedSize { get; }

Property Value

Implements IList.IsFixedSize

Declaration

public bool IsReadOnly { get; }

Property Value

Implements IList.IsReadOnly

Gets a value that indicates whether this view is loading items.

Declaration

public virtual bool IsRequestingItems { get; protected set; }

Property Value

Declaration

public bool IsSynchronized { get; }

Property Value

Implements ICollection.IsSynchronized

Gets the minimum number of items known to be in the source collection.

Declaration

public override int ItemCount { get; }

Property Value

Overrides QueryableCollectionView.ItemCount

Gets or sets the total number of items to retrieve.

Declaration

public int LoadSize { get; set; }

Property Value

Returns the queryable collection, constructed from SourceCollection.

Declaration

public override IQueryable QueryableSourceCollection { get; }

Property Value

Overrides QueryableCollectionView.QueryableSourceCollection

Gets or sets a value that indicates whether items that are not loaded yet should get loaded while the collection's enumerator is traversed.

Declaration

public bool ShouldEnumeratorLoadItems { get; set; }

Property Value

Declaration

public object SyncRoot { get; }

Property Value

Implements ICollection.SyncRoot

Gets or sets the total number of all items.

Declaration

public int VirtualItemCount { get; set; }

Property Value

Declaration

public int Add(object value)

Parameters

Returns

Implements IList.Add(object)

Adds a new item to the collection.

Declaration

public override object AddNew()

Returns

Exceptions

Overrides QueryableCollectionView.AddNew()

Ends the add transaction and discards the pending new item.

Declaration

public override void CancelNew()

Overrides QueryableCollectionView.CancelNew()

Declaration

public void Clear()

Implements IList.Clear()

Declaration

public void CopyTo(Array array, int index)

Parameters

Implements ICollection.CopyTo(Array, int)

Returns IQueryable with applied filtering, sorting, grouping and paging.

Declaration

protected override IQueryable CreateView()

Returns

Overrides QueryableCollectionView.CreateView()

Declaration

public override IEnumerator GetEnumerator()

Returns

Overrides QueryableCollectionView.GetEnumerator()

Implements IEnumerable.GetEnumerator()

Retrieves the item at the specified zero-based index in the view.

Declaration

public override object GetItemAt(int index)

Parameters

Returns

Exceptions

Overrides QueryableCollectionView.GetItemAt(int)

Remarks

Returns the zero-based index at which the specified item is located.

Declaration

public override int IndexOf(object item)

Parameters

Returns

Overrides QueryableCollectionView.IndexOf(object)

Implements IList.IndexOf(object)

Declaration

public void Insert(int index, object value)

Parameters

Implements IList.Insert(int, object)

Invalidates the paging and refreshes the view.

Declaration

protected override void InvalidatePagingAndRefresh()

Overrides QueryableCollectionView.InvalidatePagingAndRefresh()

Loads new data in the view.

Declaration

public void Load(int startIndex, IEnumerable items)

Parameters

Raises the CollectionChanged event.

Declaration

protected override void OnCollectionChanged(NotifyCollectionChangedEventArgs args)

Parameters

Overrides QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs)

Invoked when the instance should be refreshed.

Declaration

protected override void OnRefresh()

Overrides QueryableCollectionView.OnRefresh()

Removes the specified item from the collection.

Declaration

public override void Remove(object item)

Parameters

Overrides QueryableCollectionView.Remove(object)

Implements IList.Remove(object)

Removes the item at the specified position from the collection.

Declaration

public override void RemoveAt(int index)

Parameters

Overrides QueryableCollectionView.RemoveAt(int)

Implements IList.RemoveAt(int)

Reset all items to default value (null) in the collection.

Declaration

public void ResetItems()

Reset number of items starting from given index to default value (null) in the collection.

Declaration

public void ResetItems(int startIndex, int count)

Parameters

Occurs when the items are loaded.

Declaration

public event EventHandler<VirtualQueryableCollectionViewItemsLoadedEventArgs> ItemsLoaded

Event Value

Occurs when the collection is about to load items.

Declaration

public event EventHandler<VirtualQueryableCollectionViewItemsLoadingEventArgs> ItemsLoading

Event Value