DispatcherExtensions.BeginInvoke Metodo

Definizione

Spazio dei nomi:: System.Windows.Threading

Assembly:: System.Windows.Presentation.dll

Esegue in modo asincrono il delegato specificato sul thread in cui è stato creato Dispatcher.Executes the specified delegate asynchronously on the thread that the Dispatcher was created on.

Overload

BeginInvoke(Dispatcher, Action)	Esegue in modo asincrono il delegato specificato con priorità normale sul thread in cui è stato creato l'oggetto Dispatcher specificato.Executes the specified delegate asynchronously with normal priority on the thread that the specified Dispatcher was created on.
BeginInvoke(Dispatcher, Action, DispatcherPriority)	Esegue in modo asincrono il delegato specificato con la priorità specificata sul thread in cui è stato creato l'oggetto Dispatcher specificato.Executes the specified delegate asynchronously with the specified priority on the thread that the specified Dispatcher was created on.

BeginInvoke(Dispatcher, Action)

Esegue in modo asincrono il delegato specificato con priorità normale sul thread in cui è stato creato l'oggetto Dispatcher specificato.Executes the specified delegate asynchronously with normal priority on the thread that the specified Dispatcher was created on.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Windows::Threading::DispatcherOperation ^ BeginInvoke(System::Windows::Threading::Dispatcher ^ dispatcher, Action ^ action);

[System.ComponentModel.Browsable(false)]
public static System.Windows.Threading.DispatcherOperation BeginInvoke (this System.Windows.Threading.Dispatcher dispatcher, Action action);

public static System.Windows.Threading.DispatcherOperation BeginInvoke (this System.Windows.Threading.Dispatcher dispatcher, Action action);

[<System.ComponentModel.Browsable(false)>]
static member BeginInvoke : System.Windows.Threading.Dispatcher * Action -> System.Windows.Threading.DispatcherOperation

static member BeginInvoke : System.Windows.Threading.Dispatcher * Action -> System.Windows.Threading.DispatcherOperation

<Extension()>
Public Function BeginInvoke (dispatcher As Dispatcher, action As Action) As DispatcherOperation

Parametri

dispatcher: Dispatcher

Dispatcher che esegue il delegato.The dispatcher that executes the delegate.

action: Action

Delegato da eseguire, che non accetta argomenti e non restituisce un valore.The delegate to execute, which takes no arguments and does not return a value.

Restituisce

DispatcherOperation

Oggetto IAsyncResult che rappresenta il risultato dell'operazione BeginInvoke(Dispatcher, Action).An IAsyncResult object that represents the result of the BeginInvoke(Dispatcher, Action) operation.

Attributi: BrowsableAttribute

Eccezioni

ArgumentNullException

action è null.action is null.

Si applica a

BeginInvoke(Dispatcher, Action, DispatcherPriority)

Esegue in modo asincrono il delegato specificato con la priorità specificata sul thread in cui è stato creato l'oggetto Dispatcher specificato.Executes the specified delegate asynchronously with the specified priority on the thread that the specified Dispatcher was created on.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Windows::Threading::DispatcherOperation ^ BeginInvoke(System::Windows::Threading::Dispatcher ^ dispatcher, Action ^ action, System::Windows::Threading::DispatcherPriority priority);

[System.ComponentModel.Browsable(false)]
public static System.Windows.Threading.DispatcherOperation BeginInvoke (this System.Windows.Threading.Dispatcher dispatcher, Action action, System.Windows.Threading.DispatcherPriority priority);

public static System.Windows.Threading.DispatcherOperation BeginInvoke (this System.Windows.Threading.Dispatcher dispatcher, Action action, System.Windows.Threading.DispatcherPriority priority);

[<System.ComponentModel.Browsable(false)>]
static member BeginInvoke : System.Windows.Threading.Dispatcher * Action * System.Windows.Threading.DispatcherPriority -> System.Windows.Threading.DispatcherOperation

static member BeginInvoke : System.Windows.Threading.Dispatcher * Action * System.Windows.Threading.DispatcherPriority -> System.Windows.Threading.DispatcherOperation

<Extension()>
Public Function BeginInvoke (dispatcher As Dispatcher, action As Action, priority As DispatcherPriority) As DispatcherOperation

Parametri

dispatcher: Dispatcher

Dispatcher che esegue il delegato.The dispatcher that executes the delegate.

action: Action

Delegato da eseguire, che non accetta argomenti e non restituisce un valore.The delegate to execute, which takes no arguments and does not return a value.

priority: DispatcherPriority

Priorità di esecuzione del delegato rispetto ad altre operazioni in sospeso nella coda degli eventi di Dispatcher.The execution priority of the delegate relative to other pending operations in the Dispatcher event queue.