C# Класс Microsoft.Practices.Prism.Commands.CompositeCommand

The CompositeCommand composes one or more ICommands.

Наследование: ICommand

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Открытые методы

Метод	Описание
CanExecute ( object parameter ) : bool	Forwards ICommand.CanExecute to the registered commands and returns if all of the commands return .
CompositeCommand ( ) : Microsoft.Practices.Prism.Properties	Initializes a new instance of CompositeCommand.
CompositeCommand ( bool monitorCommandActivity ) : Microsoft.Practices.Prism.Properties	Initializes a new instance of CompositeCommand.
Execute ( object parameter ) : void	Forwards ICommand.Execute to the registered commands.
RegisterCommand ( ICommand command ) : void	Adds a command to the collection and signs up for the ICommand.CanExecuteChanged event of it. If this command is set to monitor command activity, and command implements the IActiveAware interface, this method will subscribe to its IActiveAware.IsActiveChanged event.
UnregisterCommand ( ICommand command ) : void	Removes a command from the collection and removes itself from the ICommand.CanExecuteChanged event of it.

Защищенные методы

Метод	Описание
OnCanExecuteChanged ( ) : void	Raises ICommand.CanExecuteChanged on the UI thread so every command invoker can requery ICommand.CanExecute to check if the CompositeCommand can execute.
ShouldExecute ( ICommand command ) : bool	Evaluates if a command should execute. If this command is set to monitor command activity, and command implements the IActiveAware interface, this method will return if the command's IActiveAware.IsActive property is ; otherwise it always returns .

Приватные методы

Метод	Описание
Command_IsActiveChanged ( object sender, EventArgs e ) : void	Handler for IsActiveChanged events of registered commands.
OnRegisteredCommandCanExecuteChanged ( object sender, EventArgs e ) : void

Описание методов

CanExecute() публичный Метод

Forwards ICommand.CanExecute to the registered commands and returns if all of the commands return .

public CanExecute ( object parameter ) : bool
parameter	object	Data used by the command. /// If the command does not require data to be passed, this object can be set to . ///
Результат	bool

CompositeCommand() публичный Метод

Initializes a new instance of CompositeCommand.

public CompositeCommand ( ) : Microsoft.Practices.Prism.Properties
Результат	Microsoft.Practices.Prism.Properties

CompositeCommand() публичный Метод

Initializes a new instance of CompositeCommand.

public CompositeCommand ( bool monitorCommandActivity ) : Microsoft.Practices.Prism.Properties
monitorCommandActivity	bool	Indicates when the command activity is going to be monitored.
Результат	Microsoft.Practices.Prism.Properties

Execute() публичный Метод

Forwards ICommand.Execute to the registered commands.

public Execute ( object parameter ) : void
parameter	object	Data used by the command. /// If the command does not require data to be passed, this object can be set to . ///
Результат	void

OnCanExecuteChanged() защищенный Метод

Raises ICommand.CanExecuteChanged on the UI thread so every command invoker can requery ICommand.CanExecute to check if the CompositeCommand can execute.

protected OnCanExecuteChanged ( ) : void
Результат	void

RegisterCommand() публичный Метод

Adds a command to the collection and signs up for the ICommand.CanExecuteChanged event of it.

If this command is set to monitor command activity, and command implements the IActiveAware interface, this method will subscribe to its IActiveAware.IsActiveChanged event.

public RegisterCommand ( ICommand command ) : void
command	ICommand	The command to register.
Результат	void

ShouldExecute() защищенный Метод

Evaluates if a command should execute.

If this command is set to monitor command activity, and command implements the IActiveAware interface, this method will return if the command's IActiveAware.IsActive property is ; otherwise it always returns .

protected ShouldExecute ( ICommand command ) : bool
command	ICommand	The command to evaluate.
Результат	bool

UnregisterCommand() публичный Метод

Removes a command from the collection and removes itself from the ICommand.CanExecuteChanged event of it.

public UnregisterCommand ( ICommand command ) : void
command	ICommand	The command to unregister.
Результат	void