Class AsyncRelayCommand

A reusable command that encapsulates the implementation of ICommand with support for async/await command delegates.
Enables instant creation of an ICommand without implementing the ICommand interface for each command. The AsyncRelayCommand<TParam> accepts asynchronous command handlers and supports data bindng to properties like IsExecuting by implementing INotifyPropertyChanged.
Call and await the ExecuteAsync() method or one of its overloads to execute the command explicitly asynchronously. ICommand

Inheritance
Object
AsyncRelayCommandCommon
AsyncRelayCommand
Implements
Inherited Members
Namespace: BionicCode.Utilities.Net
Assembly: BionicCode.Utilities.Net.dll
Syntax
public class AsyncRelayCommand : AsyncRelayCommandCommon, IAsyncRelayCommand, IAsyncRelayCommandCommon, ICommand, INotifyPropertyChanged
Remarks

AsyncRelayCommand implements ICommand. In case the AsyncRelayCommand<TParam> is executed explicitly, especially with an asynchronous command handler registered, it is highly recommended to invoke the awaitable ExecuteAsync() or its overloads instead.

Constructors

| Improve this Doc View Source

AsyncRelayCommand()

Declaration
protected AsyncRelayCommand()
| Improve this Doc View Source

AsyncRelayCommand(Action)

Creates a new parameterless synchronous command that can always execute (CanExecute() will always return true).

Declaration
public AsyncRelayCommand(Action executeNoParam)
Parameters
Type Name Description
Action executeNoParam

The awaitable execution handler.
| Improve this Doc View Source

AsyncRelayCommand(Action, Func<Boolean>)

Creates a new parameterless synchronous command.

Declaration
public AsyncRelayCommand(Action executeNoParam, Func<bool> canExecuteNoParam)
Parameters
Type Name Description
Action executeNoParam

The execution handler.
Func<Boolean> canExecuteNoParam

The execution status handler.
| Improve this Doc View Source

AsyncRelayCommand(Action<CancellationToken>)

Creates a new parameterless synchronous command that can always execute (CanExecute() will always return true)
and supports cancellation.

Declaration
public AsyncRelayCommand(Action<CancellationToken> executeNoParam)
Parameters
Type Name Description
Action<CancellationToken> executeNoParam

The awaitable execution handler.
| Improve this Doc View Source

AsyncRelayCommand(Action<CancellationToken>, Func<Boolean>)

Declaration
public AsyncRelayCommand(Action<CancellationToken> executeAsync, Func<bool> canExecute)
Parameters
Type Name Description
Action<CancellationToken> executeAsync
Func<Boolean> canExecute
| Improve this Doc View Source

AsyncRelayCommand(Func<CancellationToken, Task>)

Creates a new parameterless asynchronous command that can always execute (CanExecute() will always return true)
and supports cancellation.

Declaration
public AsyncRelayCommand(Func<CancellationToken, Task> executeAsyncNoParam)
Parameters
Type Name Description
Func<CancellationToken, Task> executeAsyncNoParam

The awaitable execution handler.
| Improve this Doc View Source

AsyncRelayCommand(Func<CancellationToken, Task>, Func<Boolean>)

Creates a new parameterless asynchronous command that supports cancellation and does not take a command parameter.

Declaration
public AsyncRelayCommand(Func<CancellationToken, Task> executeAsync, Func<bool> canExecute)
Parameters
Type Name Description
Func<CancellationToken, Task> executeAsync

The awaitable execution handler.
Func<Boolean> canExecute

The can execute handler.
| Improve this Doc View Source

AsyncRelayCommand(Func<Task>)

Creates a new parameterless asynchronous command that can always execute (CanExecute() will always return true).

Declaration
public AsyncRelayCommand(Func<Task> executeAsyncNoParam)
Parameters
Type Name Description
Func<Task> executeAsyncNoParam

The awaitable execution handler.
| Improve this Doc View Source

AsyncRelayCommand(Func<Task>, Func<Boolean>)

Creates a parameterless new asynchronous command.

Declaration
public AsyncRelayCommand(Func<Task> executeAsyncNoParam, Func<bool> canExecuteNoParam)
Parameters
Type Name Description
Func<Task> executeAsyncNoParam

The awaitable execution handler.
Func<Boolean> canExecuteNoParam

The execution status handler.

Implements

Extension Methods