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PIPointInterpolatedValueAsync Method

Returns a single AFValue whose value is interpolated at the passed time.

Namespace:  OSIsoft.AF.PI
Assembly:  OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 2.10.6.195
Syntax
public Task<AFValue> InterpolatedValueAsync(
	AFTime time,
	CancellationToken cancellationToken = null
)

Parameters

time
Type: OSIsoft.AF.TimeAFTime
The time at which the value is desired.
cancellationToken (Optional)
Type: System.ThreadingCancellationToken
A cancellation token used to abort processing before completion. Passing the default CancellationToken.None will run to completion or until the PIConnectionInfo.OperationTimeOut period elapses.

Return Value

Type: TaskAFValue
Returns a task whose result is an AFValue interpolated for the PI point at the requested time stamp.
Exceptions
ExceptionCondition
AggregateException Asynchronous methods throw AggregateException on failure which will contain one or more exceptions containing the failure.
Remarks

Important note Important
Impersonation of AF SDK asynchronous calls relies on the .NET framework's built-in support for flowing execution context across asynchronous points. When making these calls while impersonating, the thread or runtime must be configured to propagate the impersonation across these asynchronous points (see the SecurityContext documentation for details).

Note Notes to Callers
This call might use a background task to complete some of its work. See the Threading Overview for some matters to consider when execution transitions to another thread.

Version Information

AFSDK

Supported in: 2.10.5, 2.10, 2.9.5, 2.9, 2.8.5, 2.8
See Also
Enabling Operational Intelligence