AdsConnection.UnregisterAdsStateChangedAsync Method
Registers for AdsStateChanged events as an asynchronous operation.
          Namespace:  TwinCAT.Ads
Assembly:  TwinCAT.Ads (in TwinCAT.Ads.dll)
Version: 6.0.328+39e3229
Syntax
C#
public Task<ResultAds> UnregisterAdsStateChangedAsync(
EventHandler<AdsStateChangedEventArgs> handler,
CancellationToken cancel
)
Parameters
| 
                   handler  | 
                   Type: System.EventHandler.AdsStateChangedEventArgs.  | 
| 
                   cancel  | 
                   Type: System.Threading.CancellationToken  | 
Return Value
Type: Task.ResultAds.
A task that represents the asynchronous
'UnregisterAdsStateChanged' operation. The ResultAds parameter
contains the state the ErrorCode of the ADS
communication after execution.