Connectivity Software User's Guide and Reference
Explicit Type Conversion Operator (DAVtqResult<TValue>)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess.Generic Namespace > DAVtqResult<TValue> Class : Explicit Type Conversion Operator
The OPC-DA typed VTQ result to be converted.

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

Converts OPC-DA typed VTQ result object to a corresponding typed value result object, OpcLabs.BaseLib.OperationModel.Generic.ValueResult<T>.
Syntax
'Declaration
 
<JetBrains.Annotations.CanBeNullAttribute()>
<JetBrains.Annotations.ContractAnnotationAttribute("null => null; notnull => notnull")>
Public Operator Narrowing CType( _
   ByVal vtqResult As DAVtqResult(Of TValue) _
) As ValueResult(Of TValue)
'Usage
 
[JetBrains.Annotations.CanBeNull()]
[JetBrains.Annotations.ContractAnnotation("null => null; notnull => notnull")]
public ValueResult<TValue> operator explicit( 
   DAVtqResult<TValue> vtqResult
)
[JetBrains.Annotations.CanBeNull()]
[JetBrains.Annotations.ContractAnnotation("null => null; notnull => notnull")]
public:
ValueResult<TValue^>^ operator explicit( 
   DAVtqResult<TValue^>^ vtqResult
)

Parameters

vtqResult
The OPC-DA typed VTQ result to be converted.

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

Return Value

The typed value result object that corresponds to the typed VTQ result. null if the typed VTQ result passed in was null.

This method can return null (Nothing in Visual Basic).

Remarks

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

Requirements

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

See Also