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

ReactiveCommand.CreateFromObservable(Func>) method¶

Defined in

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

Applies to

net10.0, net10.0-ios26.0, net10.0-android36.0, net10.0-maccatalyst26.0, net10.0-macos26.0, net10.0-tvos26.0, net9.0, net8.0, net462, net481

Overloads¶

public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute)
public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute, IObservable<bool>? canExecute)
public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute, IScheduler? outputScheduler)
public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)
public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute)
public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute, IObservable<bool>? canExecute)
public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute, IScheduler? outputScheduler)
public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)

1. Overload¶

public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute)

View source

Summary: Creates a parameterless reactive command with asynchronous observable execution logic.

Type parameters

Name	Description
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.

Returns: ReactiveCommand -- The ReactiveCommand instance.

2. Overload¶

public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute, IObservable<bool>? canExecute)

View source

Summary: Creates a parameterless reactive command with asynchronous observable execution logic.

Type parameters

Name	Description
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.
`canExecute`	IObservable?	An optional observable that dictates the availability of the command for execution.

Returns: ReactiveCommand -- The ReactiveCommand instance.

3. Overload¶

public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute, IScheduler? outputScheduler)

View source

Summary: Creates a parameterless reactive command with asynchronous observable execution logic.

Type parameters

Name	Description
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.
`outputScheduler`	[IScheduler?](#	An optional scheduler that is used to surface events. Defaults to `RxSchedulers.MainThreadScheduler`.

Returns: ReactiveCommand -- The ReactiveCommand instance.

Exceptions

Type	Condition
System.ArgumentNullException	execute.

4. Overload¶

public static ReactiveCommand<Unit, TResult> CreateFromObservable<TResult>(Func<IObservable<TResult>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)

View source

Summary: Creates a parameterless ReactiveCommand with asynchronous execution logic.

Type parameters

Name	Description
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.
`canExecute`	IObservable?	An optional observable that dictates the availability of the command for execution.
`outputScheduler`	[IScheduler?](#	An optional scheduler that is used to surface events. Defaults to `RxSchedulers.MainThreadScheduler`.

Returns: ReactiveCommand -- The ReactiveCommand instance.

5. Overload¶

public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute)

View source

Summary: Creates a reactive command with asynchronous observable execution logic that takes a parameter of type TParam.

Type parameters

Name	Description
`TParam`	The type of the parameter passed through to command execution.
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.

Returns: ReactiveCommand -- The ReactiveCommand instance.

6. Overload¶

public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute, IObservable<bool>? canExecute)

View source

Summary: Creates a reactive command with asynchronous observable execution logic that takes a parameter of type TParam.

Type parameters

Name	Description
`TParam`	The type of the parameter passed through to command execution.
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.
`canExecute`	IObservable?	An optional observable that dictates the availability of the command for execution.

Returns: ReactiveCommand -- The ReactiveCommand instance.

7. Overload¶

public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute, IScheduler? outputScheduler)

View source

Summary: Creates a reactive command with asynchronous observable execution logic that takes a parameter of type TParam.

Type parameters

Name	Description
`TParam`	The type of the parameter passed through to command execution.
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.
`outputScheduler`	[IScheduler?](#	An optional scheduler that is used to surface events. Defaults to `RxSchedulers.MainThreadScheduler`.

Returns: ReactiveCommand -- The ReactiveCommand instance.

Exceptions

Type	Condition
System.ArgumentNullException	execute.

8. Overload¶

public static ReactiveCommand<TParam, TResult> CreateFromObservable<TParam, TResult>(Func<TParam, IObservable<TResult>> execute, IObservable<bool>? canExecute, IScheduler? outputScheduler)

View source

Summary: Creates a ReactiveCommand with asynchronous execution logic that takes a parameter of type TParam.

Type parameters

Name	Description
`TParam`	The type of the parameter passed through to command execution.
`TResult`	The type of the command's result.

Parameters

Name	Type	Description
`execute`	Func>	Provides an observable representing the command's asynchronous execution logic.
`canExecute`	IObservable?	An optional observable that dictates the availability of the command for execution.
`outputScheduler`	[IScheduler?](#	An optional scheduler that is used to surface events. Defaults to `RxSchedulers.MainThreadScheduler`.

Returns: ReactiveCommand -- The ReactiveCommand instance.