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Observable.FromAsyncPattern<T1, T2, T3, T4, TResult> Method (Func<T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult>, Func<IAsyncResult, TResult>)

Converts a Begin/End invoke function pair into an asynchronous function.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive (in System.Reactive.dll)

Syntax

'Declaration
Public Shared Function FromAsyncPattern(Of T1, T2, T3, T4, TResult) ( _
    begin As Func(Of T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult), _
    end As Func(Of IAsyncResult, TResult) _
) As Func(Of T1, T2, T3, T4, IObservable(Of TResult))
'Usage
Dim begin As Func(Of T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult)
Dim end As Func(Of IAsyncResult, TResult)
Dim returnValue As Func(Of T1, T2, T3, T4, IObservable(Of TResult))

returnValue = Observable.FromAsyncPattern(begin, _
    end)
public static Func<T1, T2, T3, T4, IObservable<TResult>> FromAsyncPattern<T1, T2, T3, T4, TResult>(
    Func<T1, T2, T3, T4, AsyncCallback, Object, IAsyncResult> begin,
    Func<IAsyncResult, TResult> end
)
public:
generic<typename T1, typename T2, typename T3, typename T4, typename TResult>
static Func<T1, T2, T3, T4, IObservable<TResult>^>^ FromAsyncPattern(
    Func<T1, T2, T3, T4, AsyncCallback^, Object^, IAsyncResult^>^ begin, 
    Func<IAsyncResult^, TResult>^ end
)
static member FromAsyncPattern : 
        begin:Func<'T1, 'T2, 'T3, 'T4, AsyncCallback, Object, IAsyncResult> * 
        end:Func<IAsyncResult, 'TResult> -> Func<'T1, 'T2, 'T3, 'T4, IObservable<'TResult>> 
JScript does not support generic types and methods.

Type Parameters

  • T1
    The first type of function.
  • T2
    The second type of function.
  • T3
    The third type of function.
  • T4
    The fourth type of function.
  • TResult
    The type of result.

Parameters

Return Value

Type: System.Func<T1, T2, T3, T4, IObservable<TResult>>
A Begin/End invoke function pair.

See Also

Reference

Observable Class

FromAsyncPattern Overload

System.Reactive.Linq Namespace