OPC Studio User's Guide and Reference
AsPrimitiveDataType Method (_UnionDataType)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.DataTypeModel.ComTypes Namespace > _UnionDataType Interface : AsPrimitiveDataType Method
The current data type expressed as primitive data type.
Syntax
'Declaration
 
<CanBeNullAttribute()>
Function AsPrimitiveDataType() As PrimitiveDataType
'Usage
 
Dim instance As _UnionDataType
Dim value As PrimitiveDataType
 
value = instance.AsPrimitiveDataType()
[CanBeNull()]
PrimitiveDataType AsPrimitiveDataType()
[CanBeNull()]
PrimitiveDataType^ AsPrimitiveDataType(); 

Return Value

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

Remarks

Returns null if the current data type is not a primitive data type.

This method has been introduced primarily for languages like PHP that do not allow down-casting.

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

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.

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