,System.Action}}},System.IObservable{System.Boolean},System.Reactive.Concurrency.IScheduler)} },System.IObservable{System.Boolean},System.Reactive.Concurrency.IScheduler)}

, IObservable?, IScheduler?) constructor¶

Defined in

Type: ReactiveCommand Namespace: ReactiveUI.Reactive Assembly: ReactiveUI.Reactive.dll

Applies to

net10.0, net10.0-maccatalyst26.0, net10.0-desktop1.0, net10.0-browserwasm1.0, net10.0-tvos26.0, net10.0-windows10.0.19041, net10.0-macos26.0, net10.0-ios26.0, net10.0-android36.0, net9.0, net9.0-tvos18.0, net9.0-macos15.0, net9.0-maccatalyst18.0, net9.0-windows10.0.19041, net9.0-ios18.0, net9.0-desktop1.0, net8.0, net8.0-windows10.0.19041, net8.0-ios18.0, net8.0-maccatalyst18.0, net8.0-macos15.0, net8.0-tvos18.0, net8.0-ios17.5, net8.0-maccatalyst17.5, net8.0-macos14.5, netstandard2.1, net481, net462, net471

Overloads¶

1. protected internal ReactiveCommand(Func<TParam, IObservable<(IObservable<TResult> Result, Action Cancel)>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)
2. protected internal ReactiveCommand(Func<TParam, IObservable<TResult>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)

1. Overload¶

protected internal ReactiveCommand(Func<TParam, IObservable<(IObservable<TResult> Result, Action Cancel)>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)

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Summary: Initializes a new instance of the ReactiveCommand class for work that signals cancellation through a separate callback (as opposed to cancelling by unsubscribing).

Parameters

Name	Type	Description
`execute`	Func Result, Action Cancel)>>	The function producing the result observable and a cancellation callback per execution.
`canExecute`	IObservable?	An observable governing whether the command can execute.
`outputScheduler`	[IScheduler?](#	The scheduler on which output is delivered.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if `execute` is `null`.

2. Overload¶

protected internal ReactiveCommand(Func<TParam, IObservable<TResult>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)

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Summary: Initializes a new instance of the ReactiveCommand class.

Parameters

Name	Type	Description
`execute`	Func>	The function producing the result observable per execution.
`canExecute`	IObservable?	An observable governing whether the command can execute.
`outputScheduler`	[IScheduler?](#	The scheduler on which output is delivered.

Exceptions

Type	Condition
System.ArgumentNullException	Thrown if `execute` is `null`.