AnyTypeExtensions.PollValues Method (IAdsConnection, ISymbol, Type, IObservable.Unit., Func.Exception, Object.)

Polls the symbol values on timepoints where the polling observable streams data / triggers

Namespace: TwinCAT.Ads.Reactive
Assembly: TwinCAT.Ads.Reactive (in TwinCAT.Ads.Reactive.dll) Version: 6.0.328+39e3229

Syntax

C#

public static IObservable<Object> PollValues(
    this IAdsConnection connection,
    ISymbol symbol,
    Type type,
    IObservable<Unit> trigger,
    Func<Exception, Object>? errorHandler
)

Parameters

connection	Type: TwinCAT.Ads.IAdsConnection The connection.
symbol	Type: TwinCAT.TypeSystem.ISymbol The symbol.
type	Type: System.Type The data type of the symbol (ANY_TYPE)
trigger	Type: System.IObservable.Unit. The Polling trigger
errorHandler	Type: System.Func.Exception, Object. The error handler.

Return Value

Type: IObservable.Object.
IObservable<System.Object>.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IAdsConnection. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Reference

AnyTypeExtensions Class

PollValues Overload

TwinCAT.Ads.Reactive Namespace