AF SDK Reference

PISystems.Refresh Method (Boolean)

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PISystems.Refresh Method (Boolean)

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Last UpdatedJan 12, 2026
2 minute read

Refresh the collection to the list of known systems on the local machine with the option to refresh only connected systems.

Namespace: OSIsoft.AF
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.2.0.7

Syntax

public void Refresh(
	bool refreshConnectedPISystems
)

Public Sub Refresh ( 
	refreshConnectedPISystems As Boolean
)

Dim instance As PISystems
Dim refreshConnectedPISystems As Boolean

instance.Refresh(refreshConnectedPISystems)

public:
void Refresh(
	bool refreshConnectedPISystems
)

member Refresh : 
        refreshConnectedPISystems : bool -> unit

Parameters

refreshConnectedPISystems: Type: SystemBoolean
If , then all PISystem objects that are connected to their server will automatically be refreshed. If , then only the collection and each PISystem's connection information will be updated.

Remarks

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.

AF SDK Reference

PISystems.Refresh Method (Boolean)

Table of Contents

PISystems.Refresh Method (Boolean)

Syntax

Parameters

Remarks

Version Information

AFSDK

See Also

Reference

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