AF SDK Reference

AFTable.LinkExternal Method (IDbDataAdapter)

Save PDF

TABLE OF CONTENTS

AFTable.LinkExternal Method (IDbDataAdapter)

Save PDF

Last UpdatedNov 18, 2025
2 minute read

Note: This API is now obsolete.

This method allows the table to be linked to an external database.

Namespace: OSIsoft.AF.Asset
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182

Syntax

[BrowsableAttribute(false)]
[ObsoleteAttribute("This method has been replaced by the 'LinkExternal(IDbDataAdapter,bool,SecureString)' method.")]
public void LinkExternal(
	IDbDataAdapter dataAdapter
)

<BrowsableAttribute(false)>
<ObsoleteAttribute("This method has been replaced by the 'LinkExternal(IDbDataAdapter,bool,SecureString)' method.")>
Public Sub LinkExternal ( 
	dataAdapter As IDbDataAdapter
)

Dim instance As AFTable
Dim dataAdapter As IDbDataAdapter

instance.LinkExternal(dataAdapter)

public:
[BrowsableAttribute(false)]
[ObsoleteAttribute(L"This method has been replaced by the 'LinkExternal(IDbDataAdapter,bool,SecureString)' method.")]
void LinkExternal(
	IDbDataAdapter^ dataAdapter
)

[<BrowsableAttribute(false)>]
[<ObsoleteAttribute("This method has been replaced by the 'LinkExternal(IDbDataAdapter,bool,SecureString)' method.")>]
member LinkExternal : 
        dataAdapter : IDbDataAdapter -> unit

Parameters

dataAdapter: Type: System.DataIDbDataAdapter
A DataAdapter which defines the external link. Passing will reset the AFTable back to an internal table.

Remarks

The data adapter's connection string must be defined in terms of the PI AF Server. Once defined, use the Table property to retrieve the data.

The user must have Admin permission to call this method.

Use the PISystem.Supports method to check if the PISystem supports the ExternallyLinkedTable and the ExternallyLinkedTableWithNonImpersonatedUser features.

Version Information

AFSDK

Obsolete (compiler warning) in 3.1.1
Obsolete (compiler warning) in 3.1.0
Obsolete (compiler warning) in 3.0.2
Obsolete (compiler warning) in 3.0.1
Obsolete (compiler warning) in 3.0.0
Obsolete (compiler warning) in 2.10.11
Obsolete (compiler warning) in 2.10.5
Obsolete (compiler warning) in 2.10.0
Obsolete (compiler warning) in 2.10
Obsolete (compiler warning) in 2.9.5
Obsolete (compiler warning) in 2.9
Obsolete (compiler warning) in 2.8.5
Obsolete (compiler warning) in 2.8
Obsolete (compiler warning) in 2.7.5
Obsolete (compiler warning) in 2.7
Obsolete (compiler warning) in 2.6
Obsolete (compiler warning) in 2.5
Obsolete (compiler warning) in 2.4

AF SDK Reference