Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Data / CompositeCollection.cs / 1305600 / CompositeCollection.cs
//----------------------------------------------------------------------------
//
//
// Copyright (C) 2003 by Microsoft Corporation. All rights reserved.
//
//
//
// Description: CompositeCollection holds the list of items that constitute the content of a ItemsControl.
//
// See specs at http://avalon/connecteddata/Specs/ItemsControl.mht
//
// History:
// 09/22/2003 : kenlai - moved from ItemCollection
//
//---------------------------------------------------------------------------
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Windows;
using System.Windows.Markup;
using MS.Internal; // Invariant.Assert
using MS.Internal.Data;
using MS.Utility;
using System;
namespace System.Windows.Data
{
///
/// CompositeCollection will contain items shaped as strings, objects, xml nodes,
/// elements as well as other collections.
/// A
[Localizability(LocalizationCategory.Ignore)]
public class CompositeCollection : IList, INotifyCollectionChanged, ICollectionViewFactory, IWeakEventListener
{
//-----------------------------------------------------
//
// Constructors
//
//-----------------------------------------------------
#region Constructors
///
/// Initializes a new instance of CompositeCollection that is empty and has default initial capacity.
///
public CompositeCollection()
{
Initialize(new ArrayList());
}
///
/// Initializes a new instance of CompositeCollection that is empty and has specified initial capacity.
///
/// The number of items that the new list is initially capable of storing
///
/// Some ItemsControl implementations have better idea how many items to anticipate,
/// capacity parameter lets them tailor the initial size.
///
public CompositeCollection(int capacity)
{
Initialize(new ArrayList(capacity));
}
#endregion Constructors
//------------------------------------------------------
//
// Public Methods
//
//-----------------------------------------------------
#region Public Methods
///
/// Returns an enumerator object for this CompositeCollection
///
///
/// Enumerator object for this CompositeCollection
///
IEnumerator IEnumerable.GetEnumerator()
{
// Enumerator from the underlying ArrayList
return InternalList.GetEnumerator();
}
///
/// Makes a shallow copy of object references from this
/// CompositeCollection to the given target array
///
///
/// Target of the copy operation
///
///
/// Zero-based index at which the copy begins
///
public void CopyTo(Array array, int index)
{
// Forward call to internal list.
InternalList.CopyTo(array, index);
}
///
/// Add an item to this collection.
///
///
/// New item to be added to collection
///
///
/// Zero-based index where the new item is added.
///
///
/// CompositeCollection can only accept CollectionContainers it doesn't already have.
///
public int Add(object newItem)
{
CollectionContainer cc = newItem as CollectionContainer;
if (cc != null)
{
AddCollectionContainer(cc);
}
int addedIndex = InternalList.Add(newItem);
OnCollectionChanged(NotifyCollectionChangedAction.Add, newItem, addedIndex);
return addedIndex;
}
///
/// Clears the collection. Releases the references on all items
/// currently in the collection.
///
public void Clear()
{
// unhook contained collections
for (int k=0, n=InternalList.Count; k < n; ++k)
{
CollectionContainer cc = this[k] as CollectionContainer;
if (cc != null)
{
RemoveCollectionContainer(cc);
}
}
InternalList.Clear();
OnCollectionChanged(NotifyCollectionChangedAction.Reset);
}
///
/// Checks to see if a given item is in this collection
///
///
/// The item whose membership in this collection is to be checked.
///
///
/// True if the collection contains the given item
///
public bool Contains(object containItem)
{
return InternalList.Contains(containItem);
}
///
/// Finds the index in this collection where the given item is found.
///
///
/// The item whose index in this collection is to be retrieved.
///
///
/// Zero-based index into the collection where the given item can be
/// found. Otherwise, -1
///
public int IndexOf(object indexItem)
{
return InternalList.IndexOf(indexItem);
}
///
/// Insert an item in the collection at a given index. All items
/// after the given position are moved down by one.
///
///
/// The index at which to inser the item
///
///
/// The item reference to be added to the collection
///
///
/// Thrown if index is out of range
///
public void Insert(int insertIndex, object insertItem)
{
CollectionContainer cc = insertItem as CollectionContainer;
if (cc != null)
{
AddCollectionContainer(cc);
}
// ArrayList implementation checks index and will throw out of range exception
InternalList.Insert(insertIndex, insertItem);
OnCollectionChanged(NotifyCollectionChangedAction.Add, insertItem, insertIndex);
}
///
/// Removes the given item reference from the collection. All
/// remaining items move up by one.
///
///
/// The item to be removed.
///
public void Remove(object removeItem)
{
int index = InternalList.IndexOf(removeItem);
if (index >= 0)
{
// to ensure model parent is cleared and the CollectionChange notification is raised,
// call this.RemoveAt, not the aggregated ArrayList
this.RemoveAt(index);
}
}
///
/// Removes an item from the collection at the given index. All
/// remaining items move up by one.
///
///
/// The index at which to remove an item.
///
///
/// Thrown if index is out of range
///
public void RemoveAt(int removeIndex)
{
if ((0 <= removeIndex) && (removeIndex < Count))
{
object removedItem = this[removeIndex];
CollectionContainer cc = removedItem as CollectionContainer;
if (cc != null)
{
RemoveCollectionContainer(cc);
}
InternalList.RemoveAt(removeIndex);
OnCollectionChanged(NotifyCollectionChangedAction.Remove, removedItem, removeIndex);
}
else
{
throw new ArgumentOutOfRangeException("removeIndex",
SR.Get(SRID.ItemCollectionRemoveArgumentOutOfRange));
}
}
///
/// Create a new view on this collection [Do not call directly].
///
///
/// Normally this method is only called by the platform's view manager,
/// not by user code.
///
ICollectionView ICollectionViewFactory.CreateView()
{
return new CompositeCollectionView(this);
}
#endregion Public Methods
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
#region Public Properties
///
/// Read-only property for the number of items stored in this collection of objects
///
///
/// CollectionContainers each count as 1 item.
/// When in ItemsSource mode, Count always equals 1.
///
public int Count
{
get
{
// Return value from the underlying ArrayList.
return InternalList.Count;
}
}
///
/// Indexer property to retrieve or replace the item at the given
/// zero-based offset into the collection.
///
///
/// Thrown if index is out of range
///
public object this[int itemIndex]
{
get
{
// ArrayList implementation checks index and will throw out of range exception
return InternalList[itemIndex];
}
set
{
// ArrayList implementation checks index and will throw out of range exception
object originalItem = InternalList[itemIndex];
// unhook the old, hook the new
CollectionContainer cc;
if ((cc = originalItem as CollectionContainer) != null)
{
RemoveCollectionContainer(cc);
}
if ((cc = value as CollectionContainer) != null)
{
AddCollectionContainer(cc);
}
// make the change
InternalList[itemIndex] = value;
OnCollectionChanged(NotifyCollectionChangedAction.Replace, originalItem, value, itemIndex);
}
}
///
/// Gets a value indicating whether access to the CompositeCollection is synchronized (thread-safe).
///
bool ICollection.IsSynchronized
{
get
{
// Return value from the underlying ArrayList.
return InternalList.IsSynchronized;
}
}
///
/// Returns an object to be used in thread synchronization.
///
object ICollection.SyncRoot
{
get
{
// Return the SyncRoot object of the underlying ArrayList
return InternalList.SyncRoot;
}
}
///
/// Gets a value indicating whether the IList has a fixed size.
/// An CompositeCollection can usually grow dynamically,
/// this call will commonly return FixedSize = False.
/// In ItemsSource mode, this call will return IsFixedSize = True.
///
bool IList.IsFixedSize
{
get
{
return InternalList.IsFixedSize;
}
}
///
/// Gets a value indicating whether the IList is read-only.
/// An CompositeCollection is usually writable,
/// this call will commonly return IsReadOnly = False.
/// In ItemsSource mode, this call will return IsReadOnly = True.
///
bool IList.IsReadOnly
{
get
{
return InternalList.IsReadOnly;
}
}
#endregion Public Properties
//-----------------------------------------------------
//
// Public Events
//
//------------------------------------------------------
#region Public Events
///
/// Occurs when the collection changes, either by adding or removing an item
///
event NotifyCollectionChangedEventHandler INotifyCollectionChanged.CollectionChanged
{
add
{
CollectionChanged += value;
}
remove
{
CollectionChanged -= value;
}
}
///
/// Occurs when the collection changes, either by adding or removing an item.
///
protected event NotifyCollectionChangedEventHandler CollectionChanged;
#endregion Public Events
#region IWeakEventListener
///
/// Handle events from the centralized event table
///
bool IWeakEventListener.ReceiveWeakEvent(Type managerType, object sender, EventArgs e)
{
return ReceiveWeakEvent(managerType, sender, e);
}
///
/// Handle events from the centralized event table
///
protected virtual bool ReceiveWeakEvent(Type managerType, object sender, EventArgs e)
{
if (managerType == typeof(CollectionChangedEventManager))
{
// A CollectionContainer has raised a change event. Forward
// it to the CompositeCollectionView(s).
OnContainedCollectionChanged(sender, (NotifyCollectionChangedEventArgs)e);
}
else
{
return false; // unrecognized event
}
return true;
}
#endregion IWeakEventListener
//-----------------------------------------------------
//
// Internal Events
//
//-----------------------------------------------------
#region Internal Events
internal event NotifyCollectionChangedEventHandler ContainedCollectionChanged;
private void OnContainedCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (ContainedCollectionChanged != null)
ContainedCollectionChanged(sender, e);
}
#endregion Internal Events
//-----------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
// common ctor initialization
private void Initialize(ArrayList internalList)
{
_internalList = internalList;
}
// ArrayList that holds collection containers as well as single items
private ArrayList InternalList
{
get
{
return _internalList;
}
}
// Hook up to a newly-added CollectionContainer
private void AddCollectionContainer(CollectionContainer cc)
{
if (InternalList.Contains(cc))
throw new ArgumentException(SR.Get(SRID.CollectionContainerMustBeUniqueForComposite), "cc");
CollectionChangedEventManager.AddListener(cc, this);
#if DEBUG
_hasRepeatedCollectionIsValid = false;
#endif
}
// Unhook a newly-deleted CollectionContainer
private void RemoveCollectionContainer(CollectionContainer cc)
{
CollectionChangedEventManager.RemoveListener(cc, this);
#if DEBUG
_hasRepeatedCollectionIsValid = false;
#endif
}
// raise CollectionChanged event to any listeners
void OnCollectionChanged(NotifyCollectionChangedAction action)
{
#if DEBUG
_hasRepeatedCollectionIsValid = false;
#endif
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(action));
}
}
// raise CollectionChanged event to any listeners
void OnCollectionChanged(NotifyCollectionChangedAction action, object item, int index)
{
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(action, item, index));
}
}
/// raise CollectionChanged event to any listeners
void OnCollectionChanged(NotifyCollectionChangedAction action, object oldItem, object newItem, int index)
{
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(action, newItem, oldItem, index));
}
}
#endregion Private Methods
//-----------------------------------------------------
//
// Private Fields
//
//------------------------------------------------------
#region Private Fields
private ArrayList _internalList;
#endregion Private Fields
//------------------------------------------------------
//
// Debugging Aids
//
//-----------------------------------------------------
#region Debugging Aids
#if DEBUG
internal bool HasRepeatedCollection()
{
if (!_hasRepeatedCollectionIsValid)
{
_hasRepeatedCollection = FindRepeatedCollection(new ArrayList());
_hasRepeatedCollectionIsValid = true;
}
return _hasRepeatedCollection;
}
// recursive depth-first search for repeated collection
private bool FindRepeatedCollection(ArrayList collections)
{
for (int i = 0; i < Count; ++i)
{
CollectionContainer cc = this[i] as CollectionContainer;
if (cc != null && cc.Collection != null)
{
CompositeCollection composite = cc.Collection as CompositeCollection;
if (composite != null)
{
if (composite.FindRepeatedCollection(collections))
return true;
}
else if (collections.IndexOf(cc.Collection) > -1)
return true;
else
collections.Add(cc.Collection);
}
}
return false;
}
private bool _hasRepeatedCollection = false;
private bool _hasRepeatedCollectionIsValid = false;
#endif
#endregion Debugging Aids
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------------------
//
//
// Copyright (C) 2003 by Microsoft Corporation. All rights reserved.
//
//
//
// Description: CompositeCollection holds the list of items that constitute the content of a ItemsControl.
//
// See specs at http://avalon/connecteddata/Specs/ItemsControl.mht
//
// History:
// 09/22/2003 : kenlai - moved from ItemCollection
//
//---------------------------------------------------------------------------
using System.Collections;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Windows;
using System.Windows.Markup;
using MS.Internal; // Invariant.Assert
using MS.Internal.Data;
using MS.Utility;
using System;
namespace System.Windows.Data
{
///
/// CompositeCollection will contain items shaped as strings, objects, xml nodes,
/// elements as well as other collections.
/// A
[Localizability(LocalizationCategory.Ignore)]
public class CompositeCollection : IList, INotifyCollectionChanged, ICollectionViewFactory, IWeakEventListener
{
//-----------------------------------------------------
//
// Constructors
//
//-----------------------------------------------------
#region Constructors
///
/// Initializes a new instance of CompositeCollection that is empty and has default initial capacity.
///
public CompositeCollection()
{
Initialize(new ArrayList());
}
///
/// Initializes a new instance of CompositeCollection that is empty and has specified initial capacity.
///
/// The number of items that the new list is initially capable of storing
///
/// Some ItemsControl implementations have better idea how many items to anticipate,
/// capacity parameter lets them tailor the initial size.
///
public CompositeCollection(int capacity)
{
Initialize(new ArrayList(capacity));
}
#endregion Constructors
//------------------------------------------------------
//
// Public Methods
//
//-----------------------------------------------------
#region Public Methods
///
/// Returns an enumerator object for this CompositeCollection
///
///
/// Enumerator object for this CompositeCollection
///
IEnumerator IEnumerable.GetEnumerator()
{
// Enumerator from the underlying ArrayList
return InternalList.GetEnumerator();
}
///
/// Makes a shallow copy of object references from this
/// CompositeCollection to the given target array
///
///
/// Target of the copy operation
///
///
/// Zero-based index at which the copy begins
///
public void CopyTo(Array array, int index)
{
// Forward call to internal list.
InternalList.CopyTo(array, index);
}
///
/// Add an item to this collection.
///
///
/// New item to be added to collection
///
///
/// Zero-based index where the new item is added.
///
///
/// CompositeCollection can only accept CollectionContainers it doesn't already have.
///
public int Add(object newItem)
{
CollectionContainer cc = newItem as CollectionContainer;
if (cc != null)
{
AddCollectionContainer(cc);
}
int addedIndex = InternalList.Add(newItem);
OnCollectionChanged(NotifyCollectionChangedAction.Add, newItem, addedIndex);
return addedIndex;
}
///
/// Clears the collection. Releases the references on all items
/// currently in the collection.
///
public void Clear()
{
// unhook contained collections
for (int k=0, n=InternalList.Count; k < n; ++k)
{
CollectionContainer cc = this[k] as CollectionContainer;
if (cc != null)
{
RemoveCollectionContainer(cc);
}
}
InternalList.Clear();
OnCollectionChanged(NotifyCollectionChangedAction.Reset);
}
///
/// Checks to see if a given item is in this collection
///
///
/// The item whose membership in this collection is to be checked.
///
///
/// True if the collection contains the given item
///
public bool Contains(object containItem)
{
return InternalList.Contains(containItem);
}
///
/// Finds the index in this collection where the given item is found.
///
///
/// The item whose index in this collection is to be retrieved.
///
///
/// Zero-based index into the collection where the given item can be
/// found. Otherwise, -1
///
public int IndexOf(object indexItem)
{
return InternalList.IndexOf(indexItem);
}
///
/// Insert an item in the collection at a given index. All items
/// after the given position are moved down by one.
///
///
/// The index at which to inser the item
///
///
/// The item reference to be added to the collection
///
///
/// Thrown if index is out of range
///
public void Insert(int insertIndex, object insertItem)
{
CollectionContainer cc = insertItem as CollectionContainer;
if (cc != null)
{
AddCollectionContainer(cc);
}
// ArrayList implementation checks index and will throw out of range exception
InternalList.Insert(insertIndex, insertItem);
OnCollectionChanged(NotifyCollectionChangedAction.Add, insertItem, insertIndex);
}
///
/// Removes the given item reference from the collection. All
/// remaining items move up by one.
///
///
/// The item to be removed.
///
public void Remove(object removeItem)
{
int index = InternalList.IndexOf(removeItem);
if (index >= 0)
{
// to ensure model parent is cleared and the CollectionChange notification is raised,
// call this.RemoveAt, not the aggregated ArrayList
this.RemoveAt(index);
}
}
///
/// Removes an item from the collection at the given index. All
/// remaining items move up by one.
///
///
/// The index at which to remove an item.
///
///
/// Thrown if index is out of range
///
public void RemoveAt(int removeIndex)
{
if ((0 <= removeIndex) && (removeIndex < Count))
{
object removedItem = this[removeIndex];
CollectionContainer cc = removedItem as CollectionContainer;
if (cc != null)
{
RemoveCollectionContainer(cc);
}
InternalList.RemoveAt(removeIndex);
OnCollectionChanged(NotifyCollectionChangedAction.Remove, removedItem, removeIndex);
}
else
{
throw new ArgumentOutOfRangeException("removeIndex",
SR.Get(SRID.ItemCollectionRemoveArgumentOutOfRange));
}
}
///
/// Create a new view on this collection [Do not call directly].
///
///
/// Normally this method is only called by the platform's view manager,
/// not by user code.
///
ICollectionView ICollectionViewFactory.CreateView()
{
return new CompositeCollectionView(this);
}
#endregion Public Methods
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
#region Public Properties
///
/// Read-only property for the number of items stored in this collection of objects
///
///
/// CollectionContainers each count as 1 item.
/// When in ItemsSource mode, Count always equals 1.
///
public int Count
{
get
{
// Return value from the underlying ArrayList.
return InternalList.Count;
}
}
///
/// Indexer property to retrieve or replace the item at the given
/// zero-based offset into the collection.
///
///
/// Thrown if index is out of range
///
public object this[int itemIndex]
{
get
{
// ArrayList implementation checks index and will throw out of range exception
return InternalList[itemIndex];
}
set
{
// ArrayList implementation checks index and will throw out of range exception
object originalItem = InternalList[itemIndex];
// unhook the old, hook the new
CollectionContainer cc;
if ((cc = originalItem as CollectionContainer) != null)
{
RemoveCollectionContainer(cc);
}
if ((cc = value as CollectionContainer) != null)
{
AddCollectionContainer(cc);
}
// make the change
InternalList[itemIndex] = value;
OnCollectionChanged(NotifyCollectionChangedAction.Replace, originalItem, value, itemIndex);
}
}
///
/// Gets a value indicating whether access to the CompositeCollection is synchronized (thread-safe).
///
bool ICollection.IsSynchronized
{
get
{
// Return value from the underlying ArrayList.
return InternalList.IsSynchronized;
}
}
///
/// Returns an object to be used in thread synchronization.
///
object ICollection.SyncRoot
{
get
{
// Return the SyncRoot object of the underlying ArrayList
return InternalList.SyncRoot;
}
}
///
/// Gets a value indicating whether the IList has a fixed size.
/// An CompositeCollection can usually grow dynamically,
/// this call will commonly return FixedSize = False.
/// In ItemsSource mode, this call will return IsFixedSize = True.
///
bool IList.IsFixedSize
{
get
{
return InternalList.IsFixedSize;
}
}
///
/// Gets a value indicating whether the IList is read-only.
/// An CompositeCollection is usually writable,
/// this call will commonly return IsReadOnly = False.
/// In ItemsSource mode, this call will return IsReadOnly = True.
///
bool IList.IsReadOnly
{
get
{
return InternalList.IsReadOnly;
}
}
#endregion Public Properties
//-----------------------------------------------------
//
// Public Events
//
//------------------------------------------------------
#region Public Events
///
/// Occurs when the collection changes, either by adding or removing an item
///
event NotifyCollectionChangedEventHandler INotifyCollectionChanged.CollectionChanged
{
add
{
CollectionChanged += value;
}
remove
{
CollectionChanged -= value;
}
}
///
/// Occurs when the collection changes, either by adding or removing an item.
///
protected event NotifyCollectionChangedEventHandler CollectionChanged;
#endregion Public Events
#region IWeakEventListener
///
/// Handle events from the centralized event table
///
bool IWeakEventListener.ReceiveWeakEvent(Type managerType, object sender, EventArgs e)
{
return ReceiveWeakEvent(managerType, sender, e);
}
///
/// Handle events from the centralized event table
///
protected virtual bool ReceiveWeakEvent(Type managerType, object sender, EventArgs e)
{
if (managerType == typeof(CollectionChangedEventManager))
{
// A CollectionContainer has raised a change event. Forward
// it to the CompositeCollectionView(s).
OnContainedCollectionChanged(sender, (NotifyCollectionChangedEventArgs)e);
}
else
{
return false; // unrecognized event
}
return true;
}
#endregion IWeakEventListener
//-----------------------------------------------------
//
// Internal Events
//
//-----------------------------------------------------
#region Internal Events
internal event NotifyCollectionChangedEventHandler ContainedCollectionChanged;
private void OnContainedCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (ContainedCollectionChanged != null)
ContainedCollectionChanged(sender, e);
}
#endregion Internal Events
//-----------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
// common ctor initialization
private void Initialize(ArrayList internalList)
{
_internalList = internalList;
}
// ArrayList that holds collection containers as well as single items
private ArrayList InternalList
{
get
{
return _internalList;
}
}
// Hook up to a newly-added CollectionContainer
private void AddCollectionContainer(CollectionContainer cc)
{
if (InternalList.Contains(cc))
throw new ArgumentException(SR.Get(SRID.CollectionContainerMustBeUniqueForComposite), "cc");
CollectionChangedEventManager.AddListener(cc, this);
#if DEBUG
_hasRepeatedCollectionIsValid = false;
#endif
}
// Unhook a newly-deleted CollectionContainer
private void RemoveCollectionContainer(CollectionContainer cc)
{
CollectionChangedEventManager.RemoveListener(cc, this);
#if DEBUG
_hasRepeatedCollectionIsValid = false;
#endif
}
// raise CollectionChanged event to any listeners
void OnCollectionChanged(NotifyCollectionChangedAction action)
{
#if DEBUG
_hasRepeatedCollectionIsValid = false;
#endif
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(action));
}
}
// raise CollectionChanged event to any listeners
void OnCollectionChanged(NotifyCollectionChangedAction action, object item, int index)
{
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(action, item, index));
}
}
/// raise CollectionChanged event to any listeners
void OnCollectionChanged(NotifyCollectionChangedAction action, object oldItem, object newItem, int index)
{
if (CollectionChanged != null)
{
CollectionChanged(this, new NotifyCollectionChangedEventArgs(action, newItem, oldItem, index));
}
}
#endregion Private Methods
//-----------------------------------------------------
//
// Private Fields
//
//------------------------------------------------------
#region Private Fields
private ArrayList _internalList;
#endregion Private Fields
//------------------------------------------------------
//
// Debugging Aids
//
//-----------------------------------------------------
#region Debugging Aids
#if DEBUG
internal bool HasRepeatedCollection()
{
if (!_hasRepeatedCollectionIsValid)
{
_hasRepeatedCollection = FindRepeatedCollection(new ArrayList());
_hasRepeatedCollectionIsValid = true;
}
return _hasRepeatedCollection;
}
// recursive depth-first search for repeated collection
private bool FindRepeatedCollection(ArrayList collections)
{
for (int i = 0; i < Count; ++i)
{
CollectionContainer cc = this[i] as CollectionContainer;
if (cc != null && cc.Collection != null)
{
CompositeCollection composite = cc.Collection as CompositeCollection;
if (composite != null)
{
if (composite.FindRepeatedCollection(collections))
return true;
}
else if (collections.IndexOf(cc.Collection) > -1)
return true;
else
collections.Add(cc.Collection);
}
}
return false;
}
private bool _hasRepeatedCollection = false;
private bool _hasRepeatedCollectionIsValid = false;
#endif
#endregion Debugging Aids
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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- ErrorWebPart.cs
- SwitchElementsCollection.cs
- DataTableTypeConverter.cs
- X509CertificateInitiatorServiceCredential.cs
- XmlChildNodes.cs
- SymbolUsageManager.cs
- RegexReplacement.cs
- StringTraceRecord.cs
- MinMaxParagraphWidth.cs
- PageHandlerFactory.cs
- KeyedCollection.cs
- TextBlockAutomationPeer.cs
- MeshGeometry3D.cs
- XPathNodeInfoAtom.cs
- CompModSwitches.cs
- AddressAlreadyInUseException.cs
- HtmlElementEventArgs.cs
- PasswordTextContainer.cs
- OverflowException.cs
- GenericsNotImplementedException.cs
- XmlUtf8RawTextWriter.cs
- BooleanAnimationBase.cs
- DriveInfo.cs
- VisualTreeHelper.cs
- SortKey.cs
- RangeValidator.cs
- MetadataCache.cs
- SessionPageStateSection.cs
- ResourcesChangeInfo.cs
- ForeignKeyFactory.cs
- ComplexLine.cs
- IncomingWebResponseContext.cs
- MenuItem.cs
- WorkerRequest.cs
- ParserStreamGeometryContext.cs
- WebPartCatalogAddVerb.cs
- BooleanConverter.cs
- TraceListeners.cs
- _CacheStreams.cs
- TemplateInstanceAttribute.cs
- UserControl.cs
- XmlValidatingReader.cs
- TcpTransportBindingElement.cs
- filewebresponse.cs
- TrackingRecord.cs
- ListViewUpdateEventArgs.cs
- DockPanel.cs
- PropertyValue.cs
- MachineKeyConverter.cs
- ResourceExpression.cs