Create<TValue>(DAItemGroupArguments) Method

Creates a new item change observable for OPC item given by OpcLabs.EasyOpc.DataAccess.OperationModel.DAItemGroupArguments object.

Syntax

[NotNull()]
public static DAItemChangedObservable<TValue> Create<TValue>( 
   DAItemGroupArguments args
)

[NotNull()]
public:
static DAItemChangedObservable<TValue^>^ Creategeneric<typename TValue>
( 
   DAItemGroupArguments^ args
)

'Declaration
 
<NotNullAttribute()>
Public Overloads Shared Function Create(Of TValue)( _
   ByVal args As DAItemGroupArguments _
) As DAItemChangedObservable(Of TValue)

'Usage
 
Dim args As DAItemGroupArguments
Dim value As DAItemChangedObservable(Of TValue)
 
value = DAItemChangedObservable.Create(Of TValue)(args)

Parameters

args: Contains an OPC server and item descriptors, and OPC group parameters.
The value of this parameter cannot be null (Nothing in Visual Basic).

Type Parameters

TValue

Return Value

Returns an observable for changes in the given OPC item.

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

Remarks

The DAReactive.DefaultClientSelector selector will be used for OPC Data Access operations.

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

DAItemChangedObservable Class
DAItemChangedObservable Members
Overload List

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