'Declaration
 
<ExtensionAttribute()>
<JetBrains.Annotations.CanBeNullAttribute()>
Public Overloads Shared Function ReadOptionalValue(Of TValue)( _
   ByVal client As IEasyUAClient, _
   ByVal readArguments As UAReadArguments _
) As ValueResult(Of TValue)

'Usage
 
Dim client As IEasyUAClient
Dim readArguments As UAReadArguments
Dim value As ValueResult(Of TValue)
 
value = IEasyUAClientExtension2.ReadOptionalValue(Of TValue)(client, readArguments)

[Extension()]
[JetBrains.Annotations.CanBeNull()]
public static ValueResult<TValue> ReadOptionalValue<TValue>( 
   IEasyUAClient client,
   UAReadArguments readArguments
)

[Extension()]
[JetBrains.Annotations.CanBeNull()]
public:
static ValueResult<TValue^>^ ReadOptionalValuegeneric<typename TValue>
( 
   IEasyUAClient^ client,
   UAReadArguments^ readArguments
) 

Parameters

client

The client object that will perform the operation.

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

readArguments

An arguments object that specifies what to read from the OPC-UA server.

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

Type Parameters

TValue

The type to convert the attribute value to.

Return Value

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

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