,--1,System.Func{--1,--0,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask{--1}})} ,--1,System.Func{--1,--0,System.Threading.CancellationToken,System.Threading.Tasks.ValueTask{--1}},System.Threading.CancellationToken)} ,--1,System.Func{--1,--0,--1})} ,--1,System.Func{--1,--0,--1},System.Threading.CancellationToken)} ,--1,System.Func{--1,--0,--1},System.Func{--1,--2})} ,--1,System.Func{--1,--0,--1},System.Func{--1,--2},System.Threading.CancellationToken)}
ObservableAsync.AggregateAsync(IObservableAsync, TAcc, Func>) method¶
Defined in
Type: ObservableAsync
Namespace: ReactiveUI.Extensions.Async
Assembly: ReactiveUI.Extensions.dll
Applies to
net10.0, net10.0-browserwasm1.0, net10.0-desktop1.0, net9.0, net9.0-browserwasm1.0, net9.0-desktop1.0, net8.0, net8.0-ios17.5, net8.0-maccatalyst17.5, net8.0-macos14.2, net8.0-macos14.5, net8.0-tvos17.2, netstandard2.1, net462, net481
Overloads¶
- 1.
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, CancellationToken, ValueTask<TAcc>> accumulator) - 2.
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, CancellationToken, ValueTask<TAcc>> accumulator, CancellationToken cancellationToken) - 3.
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator) - 4.
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator, CancellationToken cancellationToken) - 5.
public static ValueTask<TResult> AggregateAsync<T, TAcc, TResult>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator, Func<TAcc, TResult> resultSelector) - 6.
public static ValueTask<TResult> AggregateAsync<T, TAcc, TResult>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator, Func<TAcc, TResult> resultSelector, CancellationToken cancellationToken)
1. Overload¶
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, CancellationToken, ValueTask<TAcc>> accumulator)
Summary: Applies an asynchronous accumulator function over the observable sequence, returning the final accumulated value when the sequence completes.
Type parameters
| Name | Description |
|---|---|
T | The type of elements in the source sequence. |
TAcc | The type of the accumulated value. |
Parameters
| Name | Type | Description |
|---|---|---|
this | [IObservableAsync | The source observable sequence. |
seed | TAcc | The initial accumulator value. |
accumulator | Func | An asynchronous accumulator function to invoke on each element. Receives the current accumulated value, the current element, and a cancellation token. |
Returns: ValueTask
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException | Thrown if accumulator is null. |
2. Overload¶
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, CancellationToken, ValueTask<TAcc>> accumulator, CancellationToken cancellationToken)
Summary: Applies an asynchronous accumulator function over the observable sequence, returning the final accumulated value when the sequence completes.
Type parameters
| Name | Description |
|---|---|
T | The type of elements in the source sequence. |
TAcc | The type of the accumulated value. |
Parameters
| Name | Type | Description |
|---|---|---|
this | [IObservableAsync | The source observable sequence. |
seed | TAcc | The initial accumulator value. |
accumulator | Func | An asynchronous accumulator function to invoke on each element. Receives the current accumulated value, the current element, and a cancellation token. |
cancellationToken | CancellationToken | A cancellation token that can be used to cancel the operation. |
Returns: ValueTask
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException | Thrown if accumulator is null. |
3. Overload¶
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator)
Summary: Applies an accumulator function over the observable sequence, returning the final accumulated value when the sequence completes.
Type parameters
| Name | Description |
|---|---|
T | The type of elements in the source sequence. |
TAcc | The type of the accumulated value. |
Parameters
| Name | Type | Description |
|---|---|---|
this | [IObservableAsync | The source observable sequence. |
seed | TAcc | The initial accumulator value. |
accumulator | Func | An accumulator function to invoke on each element. Receives the current accumulated value and the current element. |
Returns: ValueTask
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException | Thrown if accumulator is null. |
4. Overload¶
public static ValueTask<TAcc> AggregateAsync<T, TAcc>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator, CancellationToken cancellationToken)
Summary: Applies an accumulator function over the observable sequence, returning the final accumulated value when the sequence completes.
Type parameters
| Name | Description |
|---|---|
T | The type of elements in the source sequence. |
TAcc | The type of the accumulated value. |
Parameters
| Name | Type | Description |
|---|---|---|
this | [IObservableAsync | The source observable sequence. |
seed | TAcc | The initial accumulator value. |
accumulator | Func | An accumulator function to invoke on each element. Receives the current accumulated value and the current element. |
cancellationToken | CancellationToken | A cancellation token that can be used to cancel the operation. |
Returns: ValueTask
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException | Thrown if accumulator is null. |
5. Overload¶
public static ValueTask<TResult> AggregateAsync<T, TAcc, TResult>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator, Func<TAcc, TResult> resultSelector)
Summary: Applies an accumulator function over the observable sequence with a seed value, then applies a result selector to the final accumulated value.
Type parameters
| Name | Description |
|---|---|
T | The type of elements in the source sequence. |
TAcc | The type of the intermediate accumulated value. |
TResult | The type of the result value. |
Parameters
| Name | Type | Description |
|---|---|---|
this | [IObservableAsync | The source observable sequence. |
seed | TAcc | The initial accumulator value. |
accumulator | Func | An accumulator function to invoke on each element. |
resultSelector | Func | A function to transform the final accumulated value into the result value. |
Returns: ValueTask
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException | Thrown if accumulator or resultSelector is null. |
6. Overload¶
public static ValueTask<TResult> AggregateAsync<T, TAcc, TResult>(this IObservableAsync<T> @this, TAcc seed, Func<TAcc, T, TAcc> accumulator, Func<TAcc, TResult> resultSelector, CancellationToken cancellationToken)
Summary: Applies an accumulator function over the observable sequence with a seed value, then applies a result selector to the final accumulated value.
Type parameters
| Name | Description |
|---|---|
T | The type of elements in the source sequence. |
TAcc | The type of the intermediate accumulated value. |
TResult | The type of the result value. |
Parameters
| Name | Type | Description |
|---|---|---|
this | [IObservableAsync | The source observable sequence. |
seed | TAcc | The initial accumulator value. |
accumulator | Func | An accumulator function to invoke on each element. |
resultSelector | Func | A function to transform the final accumulated value into the result value. |
cancellationToken | CancellationToken | A cancellation token that can be used to cancel the operation. |
Returns: ValueTask
Exceptions
| Type | Condition |
|---|---|
| System.ArgumentNullException | Thrown if accumulator or resultSelector is null. |