This is the base class from which most business collections or lists will be derived. More...

Inheritance diagram for Csla.BusinessBindingListBase< T, C >:

Public Member Functions
void	BeginEdit ()
	Starts a nested edit on the object. More...

void	CancelEdit ()
	Cancels the current edit process, restoring the object's state to its previous values. More...

void	ApplyEdit ()
	Commits the current edit process. More...

bool	ContainsDeleted (C item)
	Returns true if the internal deleted list contains the specified child object. More...

T	Clone ()
	Creates a clone of the object. More...

T	Save ()
	Saves the object to the database. More...

async Task< T >	SaveAsync ()
	Saves the object to the database. More...

async Task	SaveAndMergeAsync ()
	Saves the object to the database, merging any resulting updates into the existing object graph. More...

C[]	ToArray ()
	Get an array containing all items in the list. More...

Public Member Functions inherited from Csla.Core.ExtendedBindingList< C >
void	AddRange (System.Collections.Generic.IEnumerable< T > range)
	Add a range of items to the list. More...

Public Member Functions inherited from Csla.Core.IEditableCollection
void	RemoveChild (Core.IEditableBusinessObject child)
	Removes the specified child from the parent collection. More...

void	SetParent (IParent parent)
	Used by BusinessListBase as a child object is created to tell the child object about its parent. More...

Public Member Functions inherited from Csla.Core.IParent
void	RemoveChild (Core.IEditableBusinessObject child)
	This method is called by a child object when it wants to be removed from the collection. More...

Protected Member Functions
	BusinessBindingListBase ()
	Creates an instance of the type. More...

virtual void	Initialize ()
	Override this method to set up event handlers so user code in a partial class can respond to events raised by generated code. More...

virtual void	EditChildComplete (Core.IEditableBusinessObject child)
	Override this method to be notified when a child object's Core.BusinessBase.ApplyEdit method has completed. More...

override object	AddNewCore ()
	Override this method to create a new object that is added to the collection. More...

override void	InsertItem (int index, C item)
	Sets the edit level of the child object as it is added. More...

override void	RemoveItem (int index)
	Marks the child object for deletion and moves it to the collection of deleted objects. More...

override void	ClearItems ()
	Clears the collection, moving all active items to the deleted list. More...

override void	SetItem (int index, C item)
	Replaces the item at the specified index with the specified item, first moving the original item to the deleted list. More...

override void	Child_PropertyChanged (object sender, PropertyChangedEventArgs e)
	Handles any PropertyChanged event from a child object and echoes it up as a ListChanged event. More...

void	MarkAsChild ()
	Marks the object as being a child object. More...

virtual object	GetClone ()
	Creates a clone of the object. More...

override void	OnDeserialized ()
	This method is called on a newly deserialized object after deserialization is complete. More...

virtual void	Child_Create ()
	Initializes a new instance of the object with default values. More...

virtual void	Child_Update (params object[] parameters)
	Saves all items in the list, automatically performing insert, update or delete operations as necessary. More...

virtual async Task< T >	SaveAsync (object userState, bool isSync)
	Saves the object to the database. More...

virtual void	DataPortal_OnDataPortalInvoke (DataPortalEventArgs e)
	Called by the server-side DataPortal prior to calling the requested DataPortal_xyz method. More...

virtual void	DataPortal_OnDataPortalInvokeComplete (DataPortalEventArgs e)
	Called by the server-side DataPortal after calling the requested DataPortal_xyz method. More...

virtual void	DataPortal_OnDataPortalException (DataPortalEventArgs e, Exception ex)
	Called by the server-side DataPortal if an exception occurs during data access. More...

virtual void	Child_OnDataPortalInvoke (DataPortalEventArgs e)
	Called by the server-side DataPortal prior to calling the requested DataPortal_XYZ method. More...

virtual void	Child_OnDataPortalInvokeComplete (DataPortalEventArgs e)
	Called by the server-side DataPortal after calling the requested DataPortal_XYZ method. More...

virtual void	Child_OnDataPortalException (DataPortalEventArgs e, Exception ex)
	Called by the server-side DataPortal if an exception occurs during data access. More...

virtual void	OnSaved (T newObject, Exception e, object userState)
	Raises the Saved event, indicating that the object has been saved, and providing a reference to the new object instance. More...

virtual void	SetParent (Core.IParent parent)
	Used by BusinessListBase as a child object is created to tell the child object about its parent. More...

override void	OnSetState (Csla.Serialization.Mobile.SerializationInfo info)
	Override this method to retrieve your field values from the MobileFormatter serialzation stream. More...

override void	OnGetState (Csla.Serialization.Mobile.SerializationInfo info)
	Override this method to insert your field values into the MobileFormatter serialzation stream. More...

override void	OnGetChildren (Csla.Serialization.Mobile.SerializationInfo info, Csla.Serialization.Mobile.MobileFormatter formatter)
	Override this method to insert child objects into the MobileFormatter serialization stream. More...

override void	OnSetChildren (Csla.Serialization.Mobile.SerializationInfo info, Csla.Serialization.Mobile.MobileFormatter formatter)
	Override this method to get child objects from the MobileFormatter serialization stream. More...

Protected Member Functions inherited from Csla.Core.ExtendedBindingList< C >
void	OnRemovingItem (T removedItem)
	Raise the RemovingItem event. More...

override void	RemoveItem (int index)
	Remove the item at the specified index. More...

virtual void	OnBusyChanged (BusyChangedEventArgs args)
	Override this method to be notified when the IsBusy property has changed. More...

void	OnBusyChanged (string propertyName, bool busy)
	Raises the BusyChanged event for a specific property. More...

virtual void	OnUnhandledAsyncException (ErrorEventArgs error)
	Method invoked when an unhandled async exception has occurred. More...

void	OnUnhandledAsyncException (object originalSender, Exception error)
	Raises the UnhandledAsyncException event. More...

override void	InsertItem (int index, T item)
	Invoked when an item is inserted into the list. More...

virtual void	OnAddEventHooks (T item)
	Method invoked when events are hooked for a child object. More...

virtual void	OnRemoveEventHooks (T item)
	Method invoked when events are unhooked for a child object. More...

virtual void	OnChildChanged (ChildChangedEventArgs e)
	Raises the ChildChanged event, indicating that a child object has been changed. More...

Properties
ApplicationContext	ApplicationContext `[get]`
	Gets the current ApplicationContext More...

bool	IsDirty `[get]`
	Gets a value indicating whether this object's data has been changed. More...

virtual bool	IsSelfValid `[get]`
	Gets a value indicating whether this object is currently in a valid state (has no broken validation rules). More...

virtual bool	IsValid `[get]`
	Gets a value indicating whether this object is currently in a valid state (has no broken validation rules). More...

virtual bool	IsSavable `[get]`
	Returns true if this object is both dirty and valid. More...

MobileList< C >	DeletedList `[get]`
	A collection containing all child objects marked for deletion. More...

int	EditLevel `[get]`
	Returns the current edit level of the object. More...

bool	IsChild `[get]`
	Indicates whether this collection object is a child object. More...

EventHandler< Csla.Core.SavedEventArgs >	Saved
	Event raised when an object has been saved. More...

Core.IParent	Parent `[get]`
	Provide access to the parent reference for use in child object code. More...

override bool	IsBusy `[get]`
	Gets the busy status for this object and its child objects. More...

Properties inherited from Csla.Core.ExtendedBindingList< C >
EventHandler< RemovingItemEventArgs >	RemovingItem
	Implements a serialization-safe RemovingItem event. More...

BusyChangedEventHandler	BusyChanged
	Event indicating that the busy status of the object has changed. More...

virtual bool	IsBusy `[get]`
	Gets the busy status for this object and its child objects. More...

virtual bool	IsSelfBusy `[get]`
	Gets the busy status for this object. More...

EventHandler< ErrorEventArgs >	UnhandledAsyncException
	Event indicating that an exception occurred during an async operation. More...

EventHandler< Csla.Core.ChildChangedEventArgs >	ChildChanged
	Event raised when a child object has been changed. More...

IDisposable	SuppressListChangedEvents `[get]`
	Use this object to suppress ListChangedEvents for an entire code block. More...

Properties inherited from Csla.IContainsDeletedList
IEnumerable< IEditableBusinessObject >	DeletedList `[get]`
	List of deleted child objects More...

Properties inherited from Csla.Core.IBusinessObject
int	Identity `[get]`
	Gets a value representing this object instance's unique identity value within the business object graph. More...

Properties inherited from Csla.Core.ITrackStatus
bool	IsValid `[get]`
	Returns true if the object and its child objects are currently valid, false if the object or any of its child objects have broken rules or are otherwise invalid. More...

bool	IsSelfValid `[get]`
	Returns true if the object is currently valid, false if the object has broken rules or is otherwise invalid. More...

bool	IsDirty `[get]`
	Returns true if this object's data, or any of its fields or child objects data, has been changed. More...

bool	IsSelfDirty `[get]`
	Returns true if this object's data has been changed. More...

bool	IsDeleted `[get]`
	Returns true if this object is marked for deletion. More...

bool	IsNew `[get]`
	Returns true if this is a new object, false if it is a pre-existing object. More...

bool	IsSavable `[get]`
	Returns true if this object is both dirty and valid. More...

bool	IsChild `[get]`
	Returns true if this is a child object, false if it is a root object. More...

Properties inherited from Csla.Core.INotifyBusy
bool	IsBusy `[get]`
	Gets a value indicating whether the object, or any of the object's child objects, are busy running an asynchronous operation. More...

bool	IsSelfBusy `[get]`
	Gets a value indicating whether the object is busy running an asynchronous operation. More...

Properties inherited from Csla.Core.IUndoableObject
int	EditLevel `[get]`
	Gets the current edit level of the object. More...

Properties inherited from Csla.Core.IParent
IParent	Parent `[get]`
	Provide access to the parent reference for use in child object code. More...

Properties inherited from Csla.Core.IUseApplicationContext
ApplicationContext	ApplicationContext `[getset]`
	Gets or sets the current ApplicationContext object. More...

Additional Inherited Members
Events inherited from Csla.Core.INotifyBusy
BusyChangedEventHandler	BusyChanged
	Event raised when the object's busy status changes. More...

Events inherited from Csla.Core.INotifyUnhandledAsyncException
EventHandler< ErrorEventArgs >	UnhandledAsyncException
	Event indicating that an exception occurred during an asynchronous operation. More...

Events inherited from Csla.Core.ISavable< T >
EventHandler< SavedEventArgs >	Saved
	Event raised when an object has been saved. More...

Detailed Description

This is the base class from which most business collections or lists will be derived.

Template Parameters

T	Type of the business object being defined.
C	Type of the child objects contained in the list.

Type Constraints

T	:	BusinessBindingListBase
T	:	T
T	:	C
C	:	Core.IEditableBusinessObject

Definition at line 26 of file BusinessBindingListBase.cs.

Constructor & Destructor Documentation

◆ BusinessBindingListBase()

Csla.BusinessBindingListBase< T, C >.BusinessBindingListBase ( )

protected

Creates an instance of the type.

Definition at line 39 of file BusinessBindingListBase.cs.

Member Function Documentation

◆ AddNewCore()

override object Csla.BusinessBindingListBase< T, C >.AddNewCore ( )

protected

Override this method to create a new object that is added to the collection.

Definition at line 491 of file BusinessBindingListBase.cs.

◆ ApplyEdit()

void Csla.BusinessBindingListBase< T, C >.ApplyEdit ( )

Commits the current edit process.

Calling this method causes the most recently taken snapshot of the object's state to be discarded, thus committing any changes made to the object's state since the last BeginEdit call.

This method triggers an Core.BusinessBase.ApplyEdit in all child objects.

Implements Csla.Core.ISupportUndo.

Definition at line 257 of file BusinessBindingListBase.cs.

◆ BeginEdit()

void Csla.BusinessBindingListBase< T, C >.BeginEdit ( )

Starts a nested edit on the object.

When this method is called the object takes a snapshot of its current state (the values of its variables). This snapshot can be restored by calling CancelEdit or committed by calling ApplyEdit.

This is a nested operation. Each call to BeginEdit adds a new snapshot of the object's state to a stack. You should ensure that for each call to BeginEdit there is a corresponding call to either CancelEdit or ApplyEdit to remove that snapshot from the stack.

See Chapters 2 and 3 for details on n-level undo and state stacking.

This method triggers the copying of all child object states.

Implements Csla.Core.ISupportUndo.

Definition at line 215 of file BusinessBindingListBase.cs.

◆ CancelEdit()

void Csla.BusinessBindingListBase< T, C >.CancelEdit ( )

Cancels the current edit process, restoring the object's state to its previous values.

Calling this method causes the most recently taken snapshot of the object's state to be restored. This resets the object's values to the point of the last BeginEdit call.

This method triggers an undo in all child objects.

Implements Csla.Core.ISupportUndo.

Definition at line 236 of file BusinessBindingListBase.cs.

◆ Child_Create()

virtual void Csla.BusinessBindingListBase< T, C >.Child_Create ( )

protectedvirtual

Initializes a new instance of the object with default values.

Definition at line 790 of file BusinessBindingListBase.cs.

◆ Child_OnDataPortalException()

virtual void Csla.BusinessBindingListBase< T, C >.Child_OnDataPortalException	(	DataPortalEventArgs	e,
		Exception	ex
	)

protectedvirtual

Called by the server-side DataPortal if an exception occurs during data access.

Parameters

e	The DataPortalContext object passed to the DataPortal.
ex	The Exception thrown during data access.

Definition at line 988 of file BusinessBindingListBase.cs.

◆ Child_OnDataPortalInvoke()

virtual void Csla.BusinessBindingListBase< T, C >.Child_OnDataPortalInvoke ( DataPortalEventArgs e )

protectedvirtual

Called by the server-side DataPortal prior to calling the requested DataPortal_XYZ method.

Parameters

e	The DataPortalContext object passed to the DataPortal.

Definition at line 965 of file BusinessBindingListBase.cs.

◆ Child_OnDataPortalInvokeComplete()

virtual void Csla.BusinessBindingListBase< T, C >.Child_OnDataPortalInvokeComplete ( DataPortalEventArgs e )

protectedvirtual

Called by the server-side DataPortal after calling the requested DataPortal_XYZ method.

Parameters

e	The DataPortalContext object passed to the DataPortal.

Definition at line 976 of file BusinessBindingListBase.cs.

◆ Child_PropertyChanged()

override void Csla.BusinessBindingListBase< T, C >.Child_PropertyChanged	(	object	sender,
		PropertyChangedEventArgs	e
	)

protectedvirtual

Handles any PropertyChanged event from a child object and echoes it up as a ListChanged event.

Reimplemented from Csla.Core.ExtendedBindingList< C >.

Definition at line 623 of file BusinessBindingListBase.cs.

◆ Child_Update()

virtual void Csla.BusinessBindingListBase< T, C >.Child_Update ( params object[] parameters )

protectedvirtual

Saves all items in the list, automatically performing insert, update or delete operations as necessary.

Parameters

parameters Optional parameters passed to child update methods.

Reimplemented in Csla.Test.DataPortalChild.ChildList, and Csla.Test.FieldManager.ChildList.

Definition at line 803 of file BusinessBindingListBase.cs.

◆ ClearItems()

override void Csla.BusinessBindingListBase< T, C >.ClearItems ( )

protected

Clears the collection, moving all active items to the deleted list.

Definition at line 570 of file BusinessBindingListBase.cs.

◆ Clone()

T Csla.BusinessBindingListBase< T, C >.Clone ( )

Creates a clone of the object.

Returns: A new object containing the exact data of the original object.

Definition at line 749 of file BusinessBindingListBase.cs.

◆ ContainsDeleted()

bool Csla.BusinessBindingListBase< T, C >.ContainsDeleted ( C item )

Returns true if the internal deleted list contains the specified child object.

Parameters

item	Child object to check.

Definition at line 478 of file BusinessBindingListBase.cs.

◆ DataPortal_OnDataPortalException()

virtual void Csla.BusinessBindingListBase< T, C >.DataPortal_OnDataPortalException	(	DataPortalEventArgs	e,
		Exception	ex
	)

protectedvirtual

Called by the server-side DataPortal if an exception occurs during data access.

Parameters

e	The DataPortalContext object passed to the DataPortal.
ex	The Exception thrown during data access.

Definition at line 953 of file BusinessBindingListBase.cs.

◆ DataPortal_OnDataPortalInvoke()

virtual void Csla.BusinessBindingListBase< T, C >.DataPortal_OnDataPortalInvoke ( DataPortalEventArgs e )

protectedvirtual

Called by the server-side DataPortal prior to calling the requested DataPortal_xyz method.

Parameters

e	The DataPortalContext object passed to the DataPortal.

Definition at line 928 of file BusinessBindingListBase.cs.

◆ DataPortal_OnDataPortalInvokeComplete()

virtual void Csla.BusinessBindingListBase< T, C >.DataPortal_OnDataPortalInvokeComplete ( DataPortalEventArgs e )

protectedvirtual

Called by the server-side DataPortal after calling the requested DataPortal_xyz method.

Parameters

e	The DataPortalContext object passed to the DataPortal.

Definition at line 940 of file BusinessBindingListBase.cs.

◆ EditChildComplete()

virtual void Csla.BusinessBindingListBase< T, C >.EditChildComplete ( Core.IEditableBusinessObject child )

protectedvirtual

Override this method to be notified when a child object's Core.BusinessBase.ApplyEdit method has completed.

Parameters

child The child object that was edited.

Definition at line 280 of file BusinessBindingListBase.cs.

◆ GetClone()

virtual object Csla.BusinessBindingListBase< T, C >.GetClone ( )

protectedvirtual

Creates a clone of the object.

Returns: A new object containing the exact data of the original object.

Definition at line 740 of file BusinessBindingListBase.cs.

◆ Initialize()

virtual void Csla.BusinessBindingListBase< T, C >.Initialize ( )

protectedvirtual

Override this method to set up event handlers so user code in a partial class can respond to events raised by generated code.

Definition at line 67 of file BusinessBindingListBase.cs.

◆ InsertItem()

override void Csla.BusinessBindingListBase< T, C >.InsertItem	(	int	index,
		C	item
	)

protected

Sets the edit level of the child object as it is added.

Parameters

index	Index of the item to insert.
item	Item to insert.

Definition at line 529 of file BusinessBindingListBase.cs.

◆ MarkAsChild()

void Csla.BusinessBindingListBase< T, C >.MarkAsChild ( )

protected

Marks the object as being a child object.

By default all business objects are 'parent' objects. This means that they can be directly retrieved and updated into the database.

We often also need child objects. These are objects which are contained within other objects. For instance, a parent Invoice object will contain child LineItem objects.

To create a child object, the MarkAsChild method must be called as the object is created. Please see Chapter 7 for details on the use of the MarkAsChild method.

Definition at line 720 of file BusinessBindingListBase.cs.

◆ OnDeserialized()

override void Csla.BusinessBindingListBase< T, C >.OnDeserialized ( )

protectedvirtual

This method is called on a newly deserialized object after deserialization is complete.

Reimplemented from Csla.Core.ExtendedBindingList< C >.

Definition at line 767 of file BusinessBindingListBase.cs.

◆ OnGetChildren()

override void Csla.BusinessBindingListBase< T, C >.OnGetChildren	(	Csla.Serialization.Mobile.SerializationInfo	info,
		Csla.Serialization.Mobile.MobileFormatter	formatter
	)

protected

Override this method to insert child objects into the MobileFormatter serialization stream.

Parameters

info	Object containing the data to serialize.
formatter	Reference to the current SerializationFormatterFactory.GetFormatter().

Definition at line 1306 of file BusinessBindingListBase.cs.

◆ OnGetState()

override void Csla.BusinessBindingListBase< T, C >.OnGetState ( Csla.Serialization.Mobile.SerializationInfo info )

protected

Override this method to insert your field values into the MobileFormatter serialzation stream.

Parameters

info	Object containing the data to serialize.

Definition at line 1287 of file BusinessBindingListBase.cs.

◆ OnSaved()

virtual void Csla.BusinessBindingListBase< T, C >.OnSaved	(	T	newObject,
		Exception	e,
		object	userState
	)

protectedvirtual

Raises the Saved event, indicating that the object has been saved, and providing a reference to the new object instance.

Parameters

newObject	The new object instance.
e	Execption that occurred during the operation.
userState	User state object.

Definition at line 1092 of file BusinessBindingListBase.cs.

◆ OnSetChildren()

override void Csla.BusinessBindingListBase< T, C >.OnSetChildren	(	Csla.Serialization.Mobile.SerializationInfo	info,
		Csla.Serialization.Mobile.MobileFormatter	formatter
	)

protected

Override this method to get child objects from the MobileFormatter serialization stream.

Parameters

info	Object containing the serialized data.
formatter	Reference to the current SerializationFormatterFactory.GetFormatter().

Definition at line 1327 of file BusinessBindingListBase.cs.

◆ OnSetState()

override void Csla.BusinessBindingListBase< T, C >.OnSetState ( Csla.Serialization.Mobile.SerializationInfo info )

protected

Override this method to retrieve your field values from the MobileFormatter serialzation stream.

Parameters

info	Object containing the data to serialize.

Definition at line 1271 of file BusinessBindingListBase.cs.

◆ RemoveItem()

override void Csla.BusinessBindingListBase< T, C >.RemoveItem ( int index )

protected

Marks the child object for deletion and moves it to the collection of deleted objects.

Parameters

index Index of the item to remove.

Definition at line 547 of file BusinessBindingListBase.cs.

◆ Save()

T Csla.BusinessBindingListBase< T, C >.Save ( )

Saves the object to the database.

Calling this method starts the save operation, causing the all child objects to be inserted, updated or deleted within the database based on the each object's current state.

All this is contingent on IsDirty. If this value is false, no data operation occurs. It is also contingent on IsValid. If this value is false an exception will be thrown to indicate that the UI attempted to save an invalid object.

It is important to note that this method returns a new version of the business collection that contains any data updated during the save operation. You MUST update all object references to use this new version of the business collection in order to have access to the correct object data.

You can override this method to add your own custom behaviors to the save operation. For instance, you may add some security checks to make sure the user can save the object. If all security checks pass, you would then invoke the base Save method via MyBase.Save().