Documentation

Class QueryableCollectionView

Represents a view for grouping, sorting, filtering and paging data collection using LINQ based query operators.

Inheritance
System.Object
QueryableCollectionView
QueryableDataServiceCollectionViewBase
HierarchicalDataCollectionView
HierarchicalCollectionViewBase
QueryableEntityCoreCollectionView<T>
VirtualQueryableCollectionView
Namespace: Telerik.Windows.Data
Assembly: Telerik.Windows.Data.dll

Syntax

public class QueryableCollectionView : Object, IEditableCollectionView, IEditableCollectionViewAddNewItem, ICollectionView, IEnumerable, INotifyCollectionChanged, INotifyPropertyChanged, IPagedCollectionView, IWeakEventListener<NotifyCollectionChangedEventArgs>, IWeakEventListener<CurrentChangingEventArgs>, IQueryableCollectionView, IItemProperties, IDisposable

Constructors

QueryableCollectionView(IEnumerable)

Initializes a new instance of the QueryableCollectionView class.

Declaration
public QueryableCollectionView(IEnumerable source)
Parameters
System.Collections.IEnumerable source

The source collection.

QueryableCollectionView(IEnumerable, Type)

Initializes a new instance of the QueryableCollectionView class.

Declaration
public QueryableCollectionView(IEnumerable sourceCollection, Type itemType)
Parameters
System.Collections.IEnumerable sourceCollection

The source collection.
System.Type itemType

Type which will be used for all operations.
Exceptions
System.ArgumentNullException

sourceCollection is null.

Properties

CanAddNew

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

Declaration
public virtual bool CanAddNew { get; }
Property Value
System.Boolean

true if SourceCollection is not System.Collections.IList.IsFixedSize or Add method is available and collection element has a default constructor; otherwise, false.

CanAddNewItem

Gets a value that indicates whether a specified object can be added to the collection.

Declaration
public virtual bool CanAddNewItem { get; }
Property Value
System.Boolean

true if a specified object can be added to the collection; otherwise false.

CanCancelEdit

Gets a value that indicates whether the editing of an item can be canceled.

Declaration
public virtual bool CanCancelEdit { get; }
Property Value
System.Boolean

true if CurrentEditItem implements System.ComponentModel.IEditableObject; otherwise, false.

CanChangePage

Gets a value that indicates whether the PageIndex value can change.

Declaration
public virtual bool CanChangePage { get; }
Property Value
System.Boolean

true if the PageIndex value can change; otherwise, false.
Implements

CanFilter

Gets a value that indicates whether this view supports filtering via the FilterDescriptors property.

Declaration
public virtual bool CanFilter { get; }
Property Value
System.Boolean

For a default instance of QueryableCollectionView, this property always returns true.

CanGroup

Gets a value that indicates whether this view supports grouping via the GroupDescriptors property.

Declaration
public virtual bool CanGroup { get; }
Property Value
System.Boolean

For a default instance of QueryableCollectionView, this property always returns true.

CanRemove

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

Declaration
public virtual bool CanRemove { get; }
Property Value
System.Boolean

true if an item can be removed from the collection; otherwise, false.

CanSort

Gets a value that indicates whether this view supports sorting via the SortDescriptors property.

Declaration
public virtual bool CanSort { get; }
Property Value
System.Boolean

For a default instance of QueryableCollectionView, this property always returns true.

Count

Gets the number of records in the view after grouping, filtering, sorting, and paging.

Declaration
public int Count { get; }
Property Value
System.Int32

The number of records in the view after grouping, filtering, sorting, and paging.

Culture

Gets or sets the cultural info for any operations of the view that may differ by culture, such as sorting.

Declaration
public virtual CultureInfo Culture { get; set; }
Property Value
System.Globalization.CultureInfo

The culture to use during sorting.

CurrentAddItem

Gets the item that is being added during the current add transaction.

Declaration
public virtual object CurrentAddItem { get; }
Property Value
System.Object

The item that is being added if IsAddingNew is true; otherwise, null.

CurrentEditItem

Gets the item in the collection that is being edited.

Declaration
public virtual object CurrentEditItem { get; }
Property Value
System.Object

The item in the collection that is being edited if IsEditingItem is true; otherwise, null.

CurrentItem

Declaration
public virtual object CurrentItem { get; }
Property Value
System.Object

CurrentPosition

Declaration
public virtual int CurrentPosition { get; }
Property Value
System.Int32

Filter

Gets or sets a callback used to determine if an item is suitable for inclusion in the view.

Declaration
public virtual Predicate<object> Filter { get; set; }
Property Value
System.Predicate<System.Object>

A method used to determine if an item is suitable for inclusion in the view.
Exceptions
System.NotSupportedException

Setting Filter property is not supported. Use FilterDescriptors property instead.

FilterDescriptors

Gets the filter descriptors used for filtering operations.

Declaration
public virtual CompositeFilterDescriptorCollection FilterDescriptors { get; }
Property Value
CompositeFilterDescriptorCollection

The filter descriptors.
Implements

GroupDescriptions

Gets the underlying System.ComponentModel.ICollectionView.GroupDescriptions collection.

Declaration
protected ObservableCollection<GroupDescription> GroupDescriptions { get; }
Property Value
System.Collections.ObjectModel.ObservableCollection<System.ComponentModel.GroupDescription>

The System.ComponentModel.ICollectionView.GroupDescriptions for this view.

GroupDescriptors

Gets the group descriptors used for grouping operations.

Declaration
public virtual GroupDescriptorCollection GroupDescriptors { get; }
Property Value
GroupDescriptorCollection

The group descriptors.
Implements

Groups

Gets the top-level groups.

Declaration
public ReadOnlyObservableCollection<object> Groups { get; }
Property Value
System.Collections.ObjectModel.ReadOnlyObservableCollection<System.Object>

A read-only collection of the top-level groups or null if there are no groups.

InternalCount

Protected accessor to private count.

Declaration
protected virtual int InternalCount { get; }
Property Value
System.Int32

InternalList

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

Declaration
protected virtual IList InternalList { get; }
Property Value
System.Collections.IList

The internal list for the current view.

IsAddingNew

Gets a value that indicates whether an add transaction is in progress.

Declaration
public virtual bool IsAddingNew { get; }
Property Value
System.Boolean

true if an add transaction is in progress; otherwise, false.

IsCurrentAfterLast

Declaration
public virtual bool IsCurrentAfterLast { get; }
Property Value
System.Boolean

IsCurrentBeforeFirst

Declaration
public virtual bool IsCurrentBeforeFirst { get; }
Property Value
System.Boolean

IsEditingItem

Gets a value that indicates whether an edit transaction is in progress.

Declaration
public virtual bool IsEditingItem { get; }
Property Value
System.Boolean

true if an edit transaction is in progress; otherwise, false.

IsEmpty

Returns a value that indicates whether the resulting view is empty.

Declaration
public bool IsEmpty { get; }
Property Value
System.Boolean

true if the resulting view is empty; otherwise, false.

IsGrouped

Gets a value indicating whether this instance is grouped.

Declaration
public virtual bool IsGrouped { get; }
Property Value
System.Boolean

true if this instance is grouped; otherwise, false.

IsLoading

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

Declaration
public virtual bool IsLoading { get; protected set; }
Property Value
System.Boolean

IsPageChanging

Gets a value that indicates whether a page index change is in process.

Declaration
public bool IsPageChanging { get; protected set; }
Property Value
System.Boolean

true if the page index is changing; otherwise, false.
Implements

IsPaged

Gets a value indicating whether this instance has pages or not.

Declaration
protected virtual bool IsPaged { get; }
Property Value
System.Boolean

true if this instance has PageSize greater than 0; otherwise, false.

Item[Int32]

This indexer is not supposed to be used directly from your code.

Declaration
public object this[int index] { get; }
Parameters
System.Int32 index

Property Value
System.Object

ItemCount

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

Declaration
public virtual int ItemCount { get; }
Property Value
System.Int32

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

ItemProperties

Gets a collection of objects that describes the properties of the items in the collection.

Declaration
public ReadOnlyCollection<ItemPropertyInfo> ItemProperties { get; }
Property Value
System.Collections.ObjectModel.ReadOnlyCollection<System.ComponentModel.ItemPropertyInfo>

A collection of objects that describes the properties of the items in the collection.

ItemPropertiesByPropertyName

Gets a dictionary of objects that describes the properties of the items in the collection by property name.

Declaration
public Dictionary<string, ItemPropertyInfo> ItemPropertiesByPropertyName { get; }
Property Value
System.Collections.Generic.Dictionary<System.String, System.ComponentModel.ItemPropertyInfo>

A dictionary of objects that describes the properties of the items in the collection by property name.

ItemType

Gets or sets the type used for all internal data engine operations.

Declaration
public Type ItemType { get; set; }
Property Value
System.Type

The type of the item.

NeedsRefresh

Gets a value that indicates whether this view needs to be refreshed.

Declaration
public bool NeedsRefresh { get; set; }
Property Value
System.Boolean

true if the view needs to be refreshed; otherwise, false.

NewItemPlaceholderPosition

Gets or sets the position of the new item placeholder in the collection.

Declaration
public virtual NewItemPlaceholderPosition NewItemPlaceholderPosition { get; set; }
Property Value
System.ComponentModel.NewItemPlaceholderPosition

One of the enumeration values that specifies the position of the new item placeholder in the collection.

PageIndex

Gets the zero-based index of the current page.

Declaration
public int PageIndex { get; protected set; }
Property Value
System.Int32

The zero-based index of the current page.
Implements

PageSize

Gets or sets the number of items to display on a page.

Declaration
public int PageSize { get; set; }
Property Value
System.Int32

The number of items to display on a page.
Implements

PendingCurrencyRefresh

Used to hold "old" currency info when DataLoadMode is Asynchronous and we need to refresh the currency after the load is complete. This field is not supposed to be used directly from your code.

Declaration
protected QueryableCollectionView.CurrencyRefreshInfo PendingCurrencyRefresh { get; set; }
Property Value
QueryableCollectionView.CurrencyRefreshInfo

QueryableSourceCollection

Returns the queryable collection, constructed from SourceCollection.

Declaration
public virtual IQueryable QueryableSourceCollection { get; }
Property Value
System.Linq.IQueryable

An System.Linq.IQueryable object that is constructed from the underlying collection.

ShouldInitializeGroupProxy

Gets a value indicating whether should initialize group proxy.

Declaration
protected virtual bool ShouldInitializeGroupProxy { get; }
Property Value
System.Boolean

true if should initialize group proxy; otherwise, false.

ShouldRefreshOrDeferOnPageSizeChange

Gets a value indicating whether this instance should RefreshOrDefer when PageSize changes.

Declaration
protected virtual bool ShouldRefreshOrDeferOnPageSizeChange { get; }
Property Value
System.Boolean

true if this instance should RefreshOrDefer when PageSize changes; otherwise, false.

ShouldRespectIEditableObject

Gets or set a value that indicates whether IEditableObject methods are automatically invoked by QueryableCollectionView.

Declaration
public bool ShouldRespectIEditableObject { get; set; }
Property Value
System.Boolean

SortDescriptions

Gets the underlying System.ComponentModel.ICollectionView.SortDescriptions collection.

Declaration
protected SortDescriptionCollection SortDescriptions { get; }
Property Value
System.ComponentModel.SortDescriptionCollection

The System.ComponentModel.ICollectionView.SortDescriptions for this view.

SortDescriptors

Gets the sort descriptors used for sorting operations.

Declaration
public virtual SortDescriptorCollection SortDescriptors { get; }
Property Value
SortDescriptorCollection

The sort descriptors.
Implements

SourceCollection

Returns the underlying collection.

Declaration
public IEnumerable SourceCollection { get; }
Property Value
System.Collections.IEnumerable

An System.Collections.IEnumerable object that is the underlying collection.

TotalItemCount

Gets the total number of items in the source collection, or -1 if the total number is unknown.

Declaration
public virtual int TotalItemCount { get; protected set; }
Property Value
System.Int32

The total number of items in the source collection, or -1 if the total number is unknown.
Implements

Methods

AddNew()

Adds a new item to the collection.

Declaration
public virtual object AddNew()
Returns
System.Object

The new item that is added to the collection.
Exceptions
System.InvalidOperationException

CanAddNew is false.

AddNew(Object)

Adds the new item to the collection.

Declaration
public void AddNew(object newItem)
Parameters
System.Object newItem

The new item that will be added to the collection.
Exceptions
System.InvalidOperationException

CanAddNew is false.

AddNewItem(Object)

Adds the specified object to the collection.

Declaration
public virtual object AddNewItem(object newItem)
Parameters
System.Object newItem

The object to add to the collection.
Returns
System.Object

ApplySelectDescriptors(IQueryable)

Applies SelectDescriptors over the specified queryable.

Declaration
protected virtual IQueryable ApplySelectDescriptors(IQueryable queryable)
Parameters
System.Linq.IQueryable queryable

The queryable.
Returns
System.Linq.IQueryable

CancelEdit()

Ends the edit transaction and discards any pending changes to the item.

Declaration
public virtual void CancelEdit()
Exceptions
System.InvalidOperationException

CancelEdit is not supported for the current edit item. Only items implementing System.ComponentModel.IEditableObject are supported.

CancelNew()

Ends the add transaction and discards the pending new item.

Declaration
public virtual void CancelNew()

CommitEdit()

Ends the edit transaction and saves the pending changes.

Declaration
public virtual void CommitEdit()

CommitNew()

Ends the add transaction and saves the pending new item.

Declaration
public virtual void CommitNew()

CompletePageMove(Int32)

Completes the page move.

Declaration
protected virtual void CompletePageMove(int newPageIndex)
Parameters
System.Int32 newPageIndex

The index of the new page.

ConstructNewItem()

Constructs a new item.

Declaration
protected virtual object ConstructNewItem()
Returns
System.Object

Contains(Object)

Returns a value that indicates whether a given item belongs to this collection view.

Declaration
public bool Contains(object item)
Parameters
System.Object item

The object to check.
Returns
System.Boolean

True if the item belongs to this collection view; otherwise, false.

CreateInternalList()

Called when internal list needs to be created.

Declaration
protected virtual void CreateInternalList()

CreateView()

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

Declaration
protected virtual IQueryable CreateView()
Returns
System.Linq.IQueryable

DeferRefresh()

Enters a defer cycle that you can use to merge changes to the view and delay automatic refresh.

Declaration
public IDisposable DeferRefresh()
Returns
System.IDisposable

An System.IDisposable object that you can use to dispose of the calling object.

Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public void Dispose()

Dispose(Boolean)

Unsubscribes form collection changed events.

Declaration
protected virtual void Dispose(bool disposing)
Parameters
System.Boolean disposing

EditItem(Object)

Begins an edit transaction of the specified item.

Declaration
public virtual void EditItem(object item)
Parameters
System.Object item

The item to edit.

GetEffectiveItemCount()

Gets the count of items depending on the page and/or grouped state.

Declaration
protected virtual int GetEffectiveItemCount()
Returns
System.Int32

The count of items.

GetEnumerator()

Declaration
public virtual IEnumerator GetEnumerator()
Returns
System.Collections.IEnumerator

GetInternalList()

Called when internal list is required.

Declaration
protected IList GetInternalList()
Returns
System.Collections.IList

GetItemAt(Int32)

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

Declaration
public virtual object GetItemAt(int index)
Parameters
System.Int32 index

The zero-based index of the item to retrieve.
Returns
System.Object

The item at the specified zero-based index in the view.
Exceptions
System.ArgumentOutOfRangeException

index is less than 0 or greater than ItemCount.

GetPagingDeterminativeItemCount()

Gets the paging determinative item count.

Declaration
protected virtual int GetPagingDeterminativeItemCount()
Returns
System.Int32

The paging determinative item count.

IndexOf(Object)

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

Declaration
public virtual int IndexOf(object item)
Parameters
System.Object item

The item to locate.
Returns
System.Int32

The index at which the specified item is located, or –1 if the item is unknown.

InitializeCurrencyOnRefresh(QueryableCollectionView.CurrencyRefreshInfo)

Initializes the currency on refresh.

Declaration
protected void InitializeCurrencyOnRefresh(QueryableCollectionView.CurrencyRefreshInfo currencyRefreshInfo)
Parameters
QueryableCollectionView.CurrencyRefreshInfo currencyRefreshInfo

The currency refresh info.

InitializeCurrentItem()

Called when the current item should be initialized.

Declaration
protected void InitializeCurrentItem()

InitializeInternalList(IQueryable)

Called when internal list should be initialized.

Declaration
protected virtual void InitializeInternalList(IQueryable view)
Parameters
System.Linq.IQueryable view

InvalidatePagingAndRefresh()

Invalidates the paging and refreshes the view.

Declaration
protected virtual void InvalidatePagingAndRefresh()

InvalidatePagingDeterminativeItemCount()

Invalidates the paging determinative item count.

Declaration
protected virtual void InvalidatePagingDeterminativeItemCount()

MoveCurrentTo(Object)

Declaration
public bool MoveCurrentTo(object item)
Parameters
System.Object item

Returns
System.Boolean

MoveCurrentToFirst()

Declaration
public bool MoveCurrentToFirst()
Returns
System.Boolean

MoveCurrentToLast()

Declaration
public bool MoveCurrentToLast()
Returns
System.Boolean

MoveCurrentToNext()

Declaration
public bool MoveCurrentToNext()
Returns
System.Boolean

MoveCurrentToPosition(Int32)

Sets the item at the specified index to be the CurrentItem in the view.

Declaration
public bool MoveCurrentToPosition(int position)
Parameters
System.Int32 position

The index to set the CurrentItem to.
Returns
System.Boolean

True if the resulting CurrentItem is an item within the view; otherwise, false.
Exceptions
System.ArgumentOutOfRangeException

position is out of range.

MoveCurrentToPrevious()

Declaration
public bool MoveCurrentToPrevious()
Returns
System.Boolean

MoveToFirstPage()

Sets the first page as the current page.

Declaration
public bool MoveToFirstPage()
Returns
System.Boolean

true if the operation was successful; otherwise, false.
Implements

MoveToLastPage()

Sets the last page as the current page.

Declaration
public bool MoveToLastPage()
Returns
System.Boolean

true if the operation was successful; otherwise, false.
Implements

MoveToNextPage()

Moves to the page after the current page.

Declaration
public bool MoveToNextPage()
Returns
System.Boolean

true if the operation was successful; otherwise, false.
Implements

MoveToPage(Int32)

Requests a page move to the page at the specified index.

Declaration
public bool MoveToPage(int pageIndex)
Parameters
System.Int32 pageIndex

The index of the page to move to.
Returns
System.Boolean

true if the move was successfully initiated; otherwise, false.
Implements

MoveToPageCore(Int32)

Requests a page move to the page at the specified index.

Declaration
protected virtual bool MoveToPageCore(int index)
Parameters
System.Int32 index

The index of the page to move to.
Returns
System.Boolean

true if the move was successfully initiated; otherwise, false.

MoveToPreviousPage()

Moves to the page before the current page.

Declaration
public bool MoveToPreviousPage()
Returns
System.Boolean

true if the operation was successful; otherwise, false.
Implements

OnCollectionChanged(NotifyCollectionChangedEventArgs)

Raises the CollectionChanged event.

Declaration
protected virtual void OnCollectionChanged(NotifyCollectionChangedEventArgs args)
Parameters
System.Collections.Specialized.NotifyCollectionChangedEventArgs args

The System.Collections.Specialized.NotifyCollectionChangedEventArgs instance containing the event data.

OnCurrentChanged(EventArgs)

Raises the CurrentChanged event.

Declaration
protected virtual void OnCurrentChanged(EventArgs args)
Parameters
System.EventArgs args

The System.EventArgs instance containing the event data.

OnCurrentChanging()

Raise a non-cancelable CurrentChanging event This is called when CurrentItem is affected by a CollectionChange (Remove or Refresh).

Declaration
protected void OnCurrentChanging()

OnCurrentChanging(CurrentChangingEventArgs)

Raises the CurrentChanging event.

Declaration
protected virtual void OnCurrentChanging(CurrentChangingEventArgs args)
Parameters
System.ComponentModel.CurrentChangingEventArgs args

The System.ComponentModel.CurrentChangingEventArgs instance containing the event data.

OnFilterDescriptorsChanged()

Called when anything in the filter descriptors changes.

Declaration
protected virtual void OnFilterDescriptorsChanged()

OnFilterDescriptorsCollectionChanged(Object, NotifyCollectionChangedEventArgs)

Invoked when the FilterDescriptors collection changes.

Declaration
protected virtual void OnFilterDescriptorsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
Parameters
System.Object sender

Current instance of the QueryableCollectionView collection.
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

Information about the change.

OnFilterDescriptorsItemChanged(Object, ItemChangedEventArgs<IFilterDescriptor>)

Invoked when the FilterDescriptors item changes.

Declaration
protected virtual void OnFilterDescriptorsItemChanged(object sender, ItemChangedEventArgs<IFilterDescriptor> e)
Parameters
System.Object sender

Current instance of the QueryableCollectionView collection.
ItemChangedEventArgs<IFilterDescriptor> e

Information about the change.

OnFilterDescriptorsLogicalOperatorChanged()

Invoked when the FilterDescriptors logical operator changes.

Declaration
protected virtual void OnFilterDescriptorsLogicalOperatorChanged()

OnGroupDescriptorsCollectionChanged(Object, NotifyCollectionChangedEventArgs)

Invoked when the Telerik.Windows.Data.QueryableCollectionView.roupDescriptors collection changes.

Declaration
protected virtual void OnGroupDescriptorsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
Parameters
System.Object sender

Current instance of the QueryableCollectionView collection.
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

Information about the change.

OnGroupDescriptorsItemChanged(Object, ItemChangedEventArgs<IGroupDescriptor>)

Invoked when the GroupDescriptors item changes.

Declaration
protected virtual void OnGroupDescriptorsItemChanged(object sender, ItemChangedEventArgs<IGroupDescriptor> e)
Parameters
System.Object sender

Current instance of the QueryableCollectionView collection.
ItemChangedEventArgs<IGroupDescriptor> e

Information about the change.

OnInternalListCreated()

Called when internal list is created.

Declaration
protected void OnInternalListCreated()

OnPropertyChanged(PropertyChangedEventArgs)

Raises the PropertyChanged event.

Declaration
protected virtual void OnPropertyChanged(PropertyChangedEventArgs e)
Parameters
System.ComponentModel.PropertyChangedEventArgs e

The System.ComponentModel.PropertyChangedEventArgs instance containing the event data.

OnPropertyChanged(String)

Raises the PropertyChanged event.

Declaration
protected void OnPropertyChanged(string propertyName)
Parameters
System.String propertyName

Name of the property.

OnRefresh()

Invoked when the instance should be refreshed.

Declaration
protected virtual void OnRefresh()

OnSortDescriptorsCollectionChanged(Object, NotifyCollectionChangedEventArgs)

Invoked when the SortDescriptors collection changes.

Declaration
protected virtual void OnSortDescriptorsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
Parameters
System.Object sender

Current instance of the QueryableCollectionView collection.
System.Collections.Specialized.NotifyCollectionChangedEventArgs e

Information about the change.

OnSortDescriptorsItemChanged(Object, ItemChangedEventArgs<ISortDescriptor>)

Invoked when the SortDescriptors item changes.

Declaration
protected virtual void OnSortDescriptorsItemChanged(object sender, ItemChangedEventArgs<ISortDescriptor> e)
Parameters
System.Object sender

Current instance of the QueryableCollectionView collection.
ItemChangedEventArgs<ISortDescriptor> e

Information about the change.

PopulateInternalList(IQueryable)

Called when internal list should be populated.

Declaration
protected virtual void PopulateInternalList(IQueryable view)
Parameters
System.Linq.IQueryable view

RaisePageChanged()

Raises the PageChanged event.

Declaration
protected void RaisePageChanged()

Refresh()

Declaration
public void Refresh()

RefreshGroupsOnItemAction(Object, ItemAction)

Refreshes the groups according to the item and the respective action.

Declaration
protected void RefreshGroupsOnItemAction(object item, ItemAction action)
Parameters
System.Object item

The item.
ItemAction action

The action.

RefreshOnItemAction(Object, ItemAction)

Refreshes the view according to the item and the respective action.

Declaration
protected virtual void RefreshOnItemAction(object item, ItemAction action)
Parameters
System.Object item

The item.
ItemAction action

The action.

RefreshOnItemActionWithoutPaging(Object, ItemAction)

Refreshes the view according to the item and the respective action when there is no paging involved.

Declaration
protected void RefreshOnItemActionWithoutPaging(object item, ItemAction action)
Parameters
System.Object item

The item.
ItemAction action

The action.

RefreshOverride()

Re-create the view over the associated IList.

Declaration
protected virtual void RefreshOverride()

RefreshOverrideCore()

Re-create the view over the associated IList.

Declaration
protected void RefreshOverrideCore()

Remove(Object)

Removes the specified item from the collection.

Declaration
public virtual void Remove(object item)
Parameters
System.Object item

The item to remove.

RemoveAt(Int32)

Removes the item at the specified position from the collection.

Declaration
public virtual void RemoveAt(int index)
Parameters
System.Int32 index

The position of the item to remove.

SetCurrent(Object, Int32)

Sets the CurrentItem and CurrentPosition.

Declaration
protected void SetCurrent(object newItem, int newPosition)
Parameters
System.Object newItem

The new current item.
System.Int32 newPosition

The new current position.

SetCurrentPosition(Int32)

Sets the CurrentPosition to the given newPosition .

Declaration
protected void SetCurrentPosition(int newPosition)
Parameters
System.Int32 newPosition

The new position.

SetInternalList(IList)

Called when internal list should be set.

Declaration
protected void SetInternalList(IList list)
Parameters
System.Collections.IList list

Sort(IQueryable)

Sorts the specified queryable.

Declaration
protected IQueryable Sort(IQueryable queryable)
Parameters
System.Linq.IQueryable queryable

Returns
System.Linq.IQueryable

UpdateItemCount()

Called when the count of the items should be updated.

Declaration
protected void UpdateItemCount()

UpdateTotalItemCount()

Called when the count of all items should be updated.

Declaration
protected virtual void UpdateTotalItemCount()

Events

CollectionChanged

Declaration
public event NotifyCollectionChangedEventHandler CollectionChanged
Event Type
System.Collections.Specialized.NotifyCollectionChangedEventHandler

CurrentChanged

Declaration
public event EventHandler CurrentChanged
Event Type
System.EventHandler

CurrentChanging

Declaration
public event CurrentChangingEventHandler CurrentChanging
Event Type
System.ComponentModel.CurrentChangingEventHandler

GroupCollectionChanged

This is for internal use only and is not intended to be used directly from your code.

Declaration
public event EventHandler<NotifyGroupCollectionChangedEventArgs> GroupCollectionChanged
Event Type
System.EventHandler<NotifyGroupCollectionChangedEventArgs>

PageChanged

Occurs when the PageIndex has changed.

Declaration
public event EventHandler<EventArgs> PageChanged
Event Type
System.EventHandler<System.EventArgs>

Implements

PageChanging

Occurs when the PageIndex is changing.

Declaration
public event EventHandler<PageChangingEventArgs> PageChanging
Event Type
System.EventHandler<PageChangingEventArgs>

Implements

PropertyChanged

Declaration
public event PropertyChangedEventHandler PropertyChanged
Event Type
System.ComponentModel.PropertyChangedEventHandler

Extension Methods