AdsClientExtensionsWhenNotification(IAdsConnection, ISymbol, NotificationSettings) Method
Gets an observable sequence of SymbolValueNotifications.
Namespace: TwinCAT.Ads.Reactive
Assembly: TwinCAT.Ads.Reactive (in
TwinCAT.Ads.Reactive.dll) Version:
7.0.0+e56d35ccc4675faac24789a4aab60071fc61d470
Syntax
C#
public static IObservable<SymbolValueNotification> WhenNotification(
this IAdsConnection client,
ISymbol symbol,
NotificationSettings settings
)Parameters
|
client IAdsConnection |
The client. |
|
symbol ISymbol |
The symbol to observe. |
|
settings NotificationSettings |
Notification settings. |
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 |
Reference
AdsClientExtensions Class WhenNotification Overload TwinCAT.Ads.Reactive Namespace WhenNotification(IAdsConnection, IListISymbol, NotificationSettings)
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