C# Class Catel.MVVM.Providers.UserControlLogic

MVVM Provider behavior implementation for a user control.

Inheritance: LogicBase

Private Properties

Property	Type	Description
ClearWarningsAndErrorsForObject	void
CloseAndDisposeViewModelAsync	Task
CreateViewModelWrapper	void
GetViewModelResultValueFromUnloadBehavior	bool?
OnParentViewModelCancelingAsync	Task
OnParentViewModelClosingAsync	Task
OnParentViewModelContainerLoading	void
OnParentViewModelContainerUnloading	void
OnParentViewModelContainerViewModelChanged	void
OnParentViewModelSavingAsync	Task
OnTargetControlContentChanged	void
RegisterViewModelAsChild	void
SubscribeToParentViewModel	void
SubscribeToParentViewModelContainer	void
UnregisterViewModelAsChild	void
UnsubscribeFromParentViewModel	void
UnsubscribeFromParentViewModelContainer	void
UpdateDataContextToUseViewModelAsync	Task
UserControlLogic	System

Public Methods

Method	Description
OnTargetViewDataContextChanged ( object sender, Catel e ) : void	Called when the `DataContext` property of the `TargetView` has changed.
OnTargetViewLoadedAsync ( object sender, EventArgs e ) : Task	Called when the `TargetView` has just been loaded.
OnTargetViewUnloadedAsync ( object sender, EventArgs e ) : Task	Called when the `TargetView` has just been unloaded.
UserControlLogic ( IView targetView, Type viewModelType = null, IViewModel viewModel = null ) : System	Initializes a new instance of the UserControlLogic class.

Protected Methods

Method	Description
OnViewLoadedManagerLoading ( object sender, ViewLoadEventArgs e ) : void	Called when the view manager is loading.
OnViewLoadedManagerUnloading ( object sender, ViewLoadEventArgs e ) : void	Called when the view manager is unloading.
OnViewModelChanged ( ) : void	Called when the LogicBase.ViewModel property has just been changed.
OnViewModelChanging ( ) : void	Called when the LogicBase.ViewModel property is about to change.
SetDataContext ( object newDataContext ) : void	Sets the data context of the target control. This method is abstract because the real logic implementation knows how to set the data context (for example, by using an additional data context grid).

Private Methods

Method	Description
ClearWarningsAndErrorsForObject ( object obj ) : void	Clears the warnings and errors for the specified object. Since there is a "bug" in the .NET Framework (DataContext issue), this method clears the current warnings and errors in the InfoBarMessageControl if available.
CloseAndDisposeViewModelAsync ( bool result ) : Task	Closes and disposes the current view model.
CreateViewModelWrapper ( bool checkIfWrapped = true ) : void	Creates the view model wrapper.
GetViewModelResultValueFromUnloadBehavior ( ) : bool?	Gets the view model result value based on the UnloadBehavior property so it can be used for the CloseAndDisposeViewModelAsync method.
OnParentViewModelCancelingAsync ( object sender, CancelingEventArgs e ) : Task	Handles the Canceling event of the parent ViewModel.
OnParentViewModelClosingAsync ( object sender, EventArgs e ) : Task	Called when Closing event of the parent ViewModel.
OnParentViewModelContainerLoading ( object sender, EventArgs e ) : void
OnParentViewModelContainerUnloading ( object sender, EventArgs e ) : void
OnParentViewModelContainerViewModelChanged ( object sender, EventArgs e ) : void	Handles the ViewModelChanged event of the parent ViewModel container.
OnParentViewModelSavingAsync ( object sender, SavingEventArgs e ) : Task	Handles the Saving event of the parent ViewModel.
OnTargetControlContentChanged ( object sender, PropertyChangedEventArgs e ) : void	Called when the content of the target control has changed.
RegisterViewModelAsChild ( ) : void	Registers the view model as child on the parent view model.
SubscribeToParentViewModel ( IViewModel parentViewModel ) : void	Subscribes to a parent view model.
SubscribeToParentViewModelContainer ( ) : void	Subscribes to the parent view model container.
UnregisterViewModelAsChild ( ) : void	Unregisters the view model as child on the parent view model.
UnsubscribeFromParentViewModel ( ) : void	Unsubscribes from a parent view model.
UnsubscribeFromParentViewModelContainer ( ) : void	Unsubscribes from the parent view model container.
UpdateDataContextToUseViewModelAsync ( object newDataContext ) : Task	Updates the data context to use view model.
UserControlLogic ( ) : System	Initializes static members of the UserControlLogic class.

Method Details

OnTargetViewDataContextChanged() public method

Called when the DataContext property of the TargetView has changed.

public OnTargetViewDataContextChanged ( object sender, Catel e ) : void
sender	object	The sender.
e	Catel	The instance containing the event data.
return	void

OnTargetViewLoadedAsync() public method

Called when the TargetView has just been loaded.

public OnTargetViewLoadedAsync ( object sender, EventArgs e ) : Task
sender	object	The sender.
e	EventArgs	The instance containing the event data.
return	Task

OnTargetViewUnloadedAsync() public method

Called when the TargetView has just been unloaded.

public OnTargetViewUnloadedAsync ( object sender, EventArgs e ) : Task
sender	object	The sender.
e	EventArgs	The instance containing the event data.
return	Task

OnViewLoadedManagerLoading() protected method

Called when the view manager is loading.

protected OnViewLoadedManagerLoading ( object sender, ViewLoadEventArgs e ) : void
sender	object	The sender.
e	ViewLoadEventArgs	The instance containing the event data.
return	void

OnViewLoadedManagerUnloading() protected method

Called when the view manager is unloading.

protected OnViewLoadedManagerUnloading ( object sender, ViewLoadEventArgs e ) : void
sender	object	The sender.
e	ViewLoadEventArgs	The instance containing the event data.
return	void

OnViewModelChanged() protected method

Called when the LogicBase.ViewModel property has just been changed.

protected OnViewModelChanged ( ) : void
return	void

OnViewModelChanging() protected method

Called when the LogicBase.ViewModel property is about to change.

protected OnViewModelChanging ( ) : void
return	void

SetDataContext() protected method

Sets the data context of the target control. This method is abstract because the real logic implementation knows how to set the data context (for example, by using an additional data context grid).

protected SetDataContext ( object newDataContext ) : void
newDataContext	object	The new data context.
return	void

UserControlLogic() public method

Initializes a new instance of the UserControlLogic class.

The is null.

public UserControlLogic ( IView targetView, Type viewModelType = null, IViewModel viewModel = null ) : System
targetView	IView	The target control.
viewModelType	Type	Type of the view model.
viewModel	IViewModel	The view model.
return	System