public bool TryGetFieldValue<TValue>( 
   UAAttributeField attributeField,
   out TValue value
)

public:
bool TryGetFieldValuegeneric<typename TValue>
( 
   UAAttributeField^ attributeField,
   [Out] TValue^ value
) 

'Declaration
 
Public Overloads Function TryGetFieldValue(Of TValue)( _
   ByVal attributeField As UAAttributeField, _
   ByRef value As TValue _
) As Boolean

'Usage
 
Dim instance As UAEventData
Dim attributeField As UAAttributeField
Dim value As TValue
Dim value As Boolean
 
value = instance.TryGetFieldValue(Of TValue)(attributeField, value)

Parameters

attributeField

Attribute field to look up in the event data.

Because the UAAttributeField has an implicit conversion from OpcLabs.EasyOpc.UA.Filtering.UASimpleAttributeOperand, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.EasyOpc.UA.Filtering.UASimpleAttributeOperand in place of this parameter, and the corresponding OPC UA attribute field will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromUASimpleAttributeOperand static method instead.

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

value

The value found, or a null reference if the attribute field has not been found or is not of the specified type.

The value of this parameter can be null (Nothing in Visual Basic).

Type Parameters

TValue

Type of the value to be retrieved.

Return Value

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