GetPropertyValueList Method (

Gets values of multiple OPC properties, specifying an array of property arguments objects.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<JetBrains.Annotations.NotNullAttribute()>
Function GetPropertyValueList( _
   ByVal argumentsList As IList _
) As _ElasticVector

'Usage
 
Dim instance As _EasyDAClient
Dim argumentsList As IList
Dim value As _ElasticVector
 
value = instance.GetPropertyValueList(argumentsList)

[JetBrains.Annotations.NotNull()]
_ElasticVector GetPropertyValueList( 
   IList argumentsList
)

[JetBrains.Annotations.NotNull()]
_ElasticVector^ GetPropertyValueList( 
   IList^ argumentsList
)

Parameters

argumentsList

The value of this parameter cannot be null (Nothing in Visual Basic).

The individual elements of the parameter value cannot be null (Nothing in Visual Basic).

Return Value

The function returns an array of OpcLabs.BaseLib.OperationModel.ValueResult objects. The indices of elements in the output array are the same as those in the input array.

This method never returns null (Nothing in Visual Basic).

The individual elements of the returned value are never null (Nothing in Visual Basic).

This return value of this method should not be ignored.

Exceptions

Exception Description

Exception	Description
System.ArgumentNullException	A `null` reference (`Nothing` in Visual Basic) is passed to a method that does not accept it as a valid argument. This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.
System.ObjectDisposedException	An operation was performed on a disposed object.

System.ArgumentNullException

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

System.ObjectDisposedException An operation was performed on a disposed object.

Remarks

This method uses lists instead of arrays.

This member is not compatible with VBScript.

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

The server(s) can be local or can be remotely accessed via DCOM.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

_EasyDAClient Interface
_EasyDAClient Members

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