)} ,System.Reactive.Concurrency.IScheduler)} ,System.Object)} ,System.Object,System.Reactive.Concurrency.IScheduler)} ,System.Threading.CancellationToken)} ,System.Threading.CancellationToken,System.Reactive.Concurrency.IScheduler)} ,System.Threading.CancellationToken,System.Object)} ,System.Threading.CancellationToken,System.Object,System.Reactive.Concurrency.IScheduler)}

TaskObservableExtensions.ToTask(IObservable) method¶

Defined in

Type: TaskObservableExtensions Namespace: System.Reactive.Threading.Tasks Assembly: System.Reactive.dll

Applies to

netstandard2.0

Overloads¶

1. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable)
2. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, IScheduler scheduler)
3. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, object? state)
4. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, object? state, IScheduler scheduler)
5. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken)
6. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken, IScheduler scheduler)
7. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken, object? state)
8. public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken, object? state, IScheduler scheduler)

1. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` is `null`.

2. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, IScheduler scheduler)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.
`scheduler`	[IScheduler](#	The scheduler used for overriding where the task completion signals will be issued.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` or `scheduler` is `null`.

3. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, object? state)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.
`state`	object?	The state to use as the underlying task's AsyncState.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` is `null`.

4. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, object? state, IScheduler scheduler)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.
`state`	object?	The state to use as the underlying task's AsyncState.
`scheduler`	[IScheduler](#	The scheduler used for overriding where the task completion signals will be issued.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` or `scheduler` is `null`.

5. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.
`cancellationToken`	CancellationToken	Cancellation token that can be used to cancel the task, causing unsubscription from the observable sequence.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` is `null`.

6. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken, IScheduler scheduler)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.
`cancellationToken`	CancellationToken	Cancellation token that can be used to cancel the task, causing unsubscription from the observable sequence.
`scheduler`	[IScheduler](#	The scheduler used for overriding where the task completion signals will be issued.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` or `scheduler` is `null`.

7. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken, object? state)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.
`cancellationToken`	CancellationToken	Cancellation token that can be used to cancel the task, causing unsubscription from the observable sequence.
`state`	object?	The state to use as the underlying task's AsyncState.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` is `null`.

8. Overload¶

public static Task<TResult> ToTask<TResult>(this IObservable<TResult> observable, CancellationToken cancellationToken, object? state, IScheduler scheduler)

Summary: Returns a task that will receive the last value or the exception produced by the observable sequence.

Type parameters

Name	Description
`TResult`	The type of the elements in the source sequence.

Parameters

Name	Type	Description
`observable`	IObservable	Observable sequence to convert to a task.
`cancellationToken`	CancellationToken	Cancellation token that can be used to cancel the task, causing unsubscription from the observable sequence.
`state`	object?	The state to use as the underlying task's AsyncState.
`scheduler`	[IScheduler](#	The scheduler used for overriding where the task completion signals will be issued.

Returns: Task -- A task that will receive the last element or the exception produced by the observable sequence.

Exceptions

Type	Condition
System.ArgumentNullException	`observable` or `scheduler` is `null`.