OPC Studio User's Guide and Reference
AsEnumerationDataType Method (DataTypeExtension)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.DataTypeModel.Extensions Namespace > DataTypeExtension Class : AsEnumerationDataType Method

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

The current data type expressed as enumeration data type.
Syntax
'Declaration
 
<ExtensionAttribute()>
<CanBeNullAttribute()>
Public Shared Function AsEnumerationDataType( _
   ByVal dataType As DataType _
) As EnumerationDataType
'Usage
 
Dim dataType As DataType
Dim value As EnumerationDataType
 
value = DataTypeExtension.AsEnumerationDataType(dataType)
[Extension()]
[CanBeNull()]
public static EnumerationDataType AsEnumerationDataType( 
   DataType dataType
)
[Extension()]
[CanBeNull()]
public:
static EnumerationDataType^ AsEnumerationDataType( 
   DataType^ dataType
) 

Parameters

dataType

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

Return Value

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

Remarks

Returns null if the current data type is not an enumeration data type.

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

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