AdsClientExtensions.WhenNotification Method (IAdsConnection, ISymbol, NotificationSettings)
Gets an observable sequence of SymbolValueNotifications.
Namespace: TwinCAT.Ads.Reactive
Assembly: TwinCAT.Ads.Reactive (in
TwinCAT.Ads.Reactive.dll) Version: 6.0.328+39e3229
Syntax
C#
public static IObservable<SymbolValueNotification> WhenNotification(
this IAdsConnection client,
ISymbol symbol,
NotificationSettings settings
)
Parameters
client |
Type: TwinCAT.Ads.IAdsConnection |
symbol |
Type: TwinCAT.TypeSystem.ISymbol |
settings |
Type: TwinCAT.Ads.NotificationSettings |
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).
Exceptions
Exception |
Condition |
---|---|
symbol | |
Symbol is not an IValueSymbol - symbol |