ViewModel without multithreading (concurrency) bugs. More...

Inheritance diagram for Csla.Xaml.CancellableViewModel< T >:

Public Member Functions
virtual void	CancelRefresh ()
	Cancel refresh operation. More...

Public Member Functions inherited from Csla.Xaml.ViewModel< T >
virtual void	Save (object sender, ExecuteEventArgs e)
	Saves the Model, first committing changes if ManagedObjectLifetime is true. More...

virtual async void	SaveAsync (object sender, ExecuteEventArgs e)
	Saves the Model, first committing changes if ManagedObjectLifetime is true. More...

virtual void	Cancel (object sender, ExecuteEventArgs e)
	Cancels changes made to the model if ManagedObjectLifetime is true. More...

virtual void	AddNew (object sender, ExecuteEventArgs e)
	Adds a new item to the Model (if it is a collection). More...

virtual void	Remove (object sender, ExecuteEventArgs e)
	Removes an item from the Model (if it is a collection). More...

virtual void	Delete (object sender, ExecuteEventArgs e)
	Marks the Model for deletion (if it is an editable root object). More...

Public Member Functions inherited from Csla.Xaml.ViewModelBase< T >
async Task< ViewModelBase< T > >	InitAsync ()
	Method used to perform async initialization of the viewmodel. More...

Protected Member Functions
	CancellableViewModel ()

new void	BeginRefresh (Action< EventHandler< DataPortalResult< T > > > factoryMethod)
	Creates or retrieves a new instance of the Model by invoking a static factory method. More...

override void	BeginRefresh (string factoryMethod, params object[] factoryParameters)
	Creates or retrieves a new instance of the Model by invoking a static factory method. More...

Protected Member Functions inherited from Csla.Xaml.ViewModelBase< T >
	ViewModelBase ()
	Create new instance of base class used to create ViewModel objects that implement their own commands/verbs/actions. More...

virtual async Task< T >	DoInitAsync ()
	Override this method to implement async initialization of the model object. More...

virtual void	OnError (Exception error)
	Raises ErrorOccurred event when an error occurs during processing. More...

virtual void	DoRefresh (Func< T > factoryMethod)
	Creates or retrieves a new instance of the Model by invoking a static factory method. More...

virtual void	DoRefresh (string factoryMethod, params object[] factoryParameters)
	Creates or retrieves a new instance of the Model by invoking a static factory method. More...

virtual void	DoRefresh (string factoryMethod)
	Creates or retrieves a new instance of the Model by invoking a static factory method. More...

virtual void	BeginRefresh (string factoryMethod)
	Creates or retrieves a new instance of the Model by invoking a static factory method. More...

virtual void	OnRefreshing (T model)
	Method called after a refresh operation has completed and before the model is updated. More...

virtual void	OnRefreshed ()
	Method called after a refresh operation has completed. More...

virtual T	DoSave ()
	Saves the Model, first committing changes if ManagedObjectLifetime is true. More...

virtual void	BeginSave ()
	Saves the Model, first committing changes if ManagedObjectLifetime is true. More...

virtual void	OnSaving (T model)
	Method called after a save operation has completed and before Model is updated (when successful). More...

virtual void	OnSaved ()
	Method called after a save operation has completed (whether successful or not). More...

virtual async Task< T >	RefreshAsync< F > (Func< Task< T > > factory)
	Creates or retrieves a new instance of the Model by invoking an action. More...

virtual async Task< T >	SaveAsync ()
	Saves the Model, first committing changes if ManagedObjectLifetime is true. More...

virtual void	DoCancel ()
	Cancels changes made to the model if ManagedObjectLifetime is true. More...

virtual object	DoAddNew ()
	Adds a new item to the Model (if it is a collection). More...

virtual void	DoRemove (object item)
	Removes an item from the Model (if it is a collection). More...

virtual void	DoDelete ()
	Marks the Model for deletion (if it is an editable root object). More...

virtual void	OnModelChanged (T oldValue, T newValue)
	Invoked when the Model changes, allowing event handlers to be unhooked from the old object and hooked on the new object. More...

void	UnhookChangedEvents (T model)
	Unhooks changed event handlers from the model. More...

virtual void	OnSetProperties ()
	Override this method to hook into to logic of setting properties when model is changed or edited. More...

virtual void	OnPropertyChanged (string propertyName)
	Raise the PropertyChanged event. More...

Properties
bool	IsConcurentRefreshesAllowed `[getset]`
	Allows more than one refresh operations in one time. More...

Properties inherited from Csla.Xaml.ViewModelBase< T >
Exception	Error `[getprotected set]`
	Gets the Error object corresponding to the last asynchronous operation. More...

T	Model `[getset]`
	Gets or sets the Model object. More...

bool	ManageObjectLifetime `[getset]`
	Gets or sets a value indicating whether the ViewManageObjectLifetime should automatically managed the lifetime of the ManageObjectLifetime. More...

bool	IsBusy `[getprotected set]`
	Gets a value indicating whether this object is executing an asynchronous process. More...

virtual bool	IsDirty `[getprotected set]`
	Gets a value indicating whether the Model has been changed. More...

virtual bool	IsValid `[getprotected set]`
	Gets a value indicating whether the Model is currently valid (has no broken rules). More...

virtual bool	CanSave `[getprotected set]`
	Gets a value indicating whether the Model can currently be saved. More...

virtual bool	CanCancel `[getprotected set]`
	Gets a value indicating whether the Model can currently be canceled. More...

virtual bool	CanCreate `[getprotected set]`
	Gets a value indicating whether an instance of the Model can currently be created. More...

virtual bool	CanDelete `[getprotected set]`
	Gets a value indicating whether the Model can currently be deleted. More...

virtual bool	CanFetch `[getprotected set]`
	Gets a value indicating whether an instance of the Model can currently be retrieved. More...

virtual bool	CanRemove `[getprotected set]`
	Gets a value indicating whether the Model can currently be removed. More...

virtual bool	CanAddNew `[getprotected set]`
	Gets a value indicating whether the Model can currently be added. More...

virtual bool	CanCreateObject `[getprotected set]`
	Gets a value indicating whether the current user is authorized to create a Model. More...

virtual bool	CanGetObject `[getprotected set]`
	Gets a value indicating whether the current user is authorized to retrieve a Model. More...

virtual bool	CanEditObject `[getprotected set]`
	Gets a value indicating whether the current user is authorized to save (insert or update a Model. More...

virtual bool	CanDeleteObject `[getprotected set]`
	Gets a value indicating whether the current user is authorized to delete a Model. More...

Properties inherited from Csla.Xaml.IViewModel
object	Model `[getset]`
	Gets or sets the Model property of the viewmodel object. More...

Additional Inherited Members
Static Public Attributes inherited from Csla.Xaml.ViewModelBase< T >
static readonly DependencyProperty	ModelProperty
	Gets or sets the Model object. More...

static readonly DependencyProperty	ManageObjectLifetimeProperty
	Gets or sets a value indicating whether the ViewModel should automatically managed the lifetime of the Model. More...

Events inherited from Csla.Xaml.ViewModelBase< T >
EventHandler< ErrorEventArgs >	ErrorOccurred
	Event raised when an error occurs during processing. More...

PropertyChangedEventHandler	PropertyChanged
	Event raised when a property changes. More...

Detailed Description

ViewModel without multithreading (concurrency) bugs.

Template Parameters

T

Definition at line 21 of file CancellableViewModel.cs.

Constructor & Destructor Documentation

◆ CancellableViewModel()

Csla.Xaml.CancellableViewModel< T >.CancellableViewModel ( )

protected

Definition at line 28 of file CancellableViewModel.cs.

Member Function Documentation

◆ BeginRefresh() [1/2]

new void Csla.Xaml.CancellableViewModel< T >.BeginRefresh ( Action< EventHandler< DataPortalResult< T > > > factoryMethod )

protectedvirtual

Creates or retrieves a new instance of the Model by invoking a static factory method.

Parameters

factoryMethod Static factory method action.

BeginRefresh(BusinessList.BeginGetList)

BeginRefresh(handler => BusinessList.BeginGetList(handler))

BeginRefresh(handler => BusinessList.BeginGetList(id, handler))

Reimplemented from Csla.Xaml.ViewModelBase< T >.

Definition at line 48 of file CancellableViewModel.cs.

◆ BeginRefresh() [2/2]

override void Csla.Xaml.CancellableViewModel< T >.BeginRefresh	(	string	factoryMethod,
		params object[]	factoryParameters
	)

protectedvirtual

Creates or retrieves a new instance of the Model by invoking a static factory method.

Parameters

factoryMethod	Name of the static factory method.
factoryParameters	Factory method parameters.

Reimplemented from Csla.Xaml.ViewModelBase< T >.

Definition at line 60 of file CancellableViewModel.cs.

◆ CancelRefresh()

virtual void Csla.Xaml.CancellableViewModel< T >.CancelRefresh ( )

virtual

Cancel refresh operation.

Definition at line 69 of file CancellableViewModel.cs.

Property Documentation

◆ IsConcurentRefreshesAllowed

bool Csla.Xaml.CancellableViewModel< T >.IsConcurentRefreshesAllowed

getset

Allows more than one refresh operations in one time.

Anyway, only the last refresh request will set the Model.

Definition at line 37 of file CancellableViewModel.cs.

Public Member Functions

Protected Member Functions

Properties

Additional Inherited Members