OPC Studio User's Guide and Reference
Implicit Type Conversion(DAPropertyId,DAPropertyIds) Operator



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.DataAccess Namespace > DAPropertyId Class > Implicit Type Conversion Operator : Implicit Type Conversion(DAPropertyId,DAPropertyIds) Operator
Enumerated value to be converted.
Converts an enumerated value to a DAPropertyId object.
Syntax
'Declaration
 
<NotNullAttribute()>
Overloads Public Operator Widening CType( _
   ByVal internalValue As DAPropertyIds _
) As DAPropertyId
'Usage
 
[NotNull()]
public DAPropertyId operator implicit( 
   DAPropertyIds internalValue
)
[NotNull()]
public:
operator DAPropertyId^ ( 
   DAPropertyIds internalValue
)

Parameters

internalValue
Enumerated value to be converted.

Return Value

Returns a DAPropertyId converted from the input argument.

Because the DAPropertyId has an implicit conversion to System.Int64 and DAPropertyIds, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the return value in place of a System.Int64 (representing the numerical value of the property Id), or in place a DAPropertyIds enumeration value. When the implicit conversion operators are not supported (such as with Python.NET), you can use the ToInt64 or ToDAPropertyIds static method instead.

Also, because there is an implicit conversion from DAPropertyId to DAPropertyDescriptor, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use the returned DAPropertyId in any place where DAPropertyDescriptor is expected as input, and the corresponding OPC DA property descriptor will be constructed automatically from the OPC DA property Id. When the implicit conversion operators are not supported (such as with Python.NET), you can use the FromDAPropertyId static method instead.

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

Remarks

This operator is equivalent to FromDAPropertyIds.

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