OPC Studio User's Guide and Reference
TryGetDataType Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA Namespace > UAType Class : TryGetDataType Method
The OPC-UA data type ID. The NodeId of the DataType definition.

Because the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId has an implicit conversion from System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the expanded text of the nodeId) in place of this parameter, and the corresponding OPC UA node Id will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId.UANodeId Constructor(String) constructor instead.

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

The .NET data type that corresponds to the given data type ID.

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

Tries to get a .NET data type for a given OPC-UA data type ID.
Syntax
'Declaration
 
Public Shared Function TryGetDataType( _
   ByVal dataTypeId As UANodeId, _
   ByRef dataType As Type _
) As Boolean
'Usage
 
Dim dataTypeId As UANodeId
Dim dataType As Type
Dim value As Boolean
 
value = UAType.TryGetDataType(dataTypeId, dataType)
public static bool TryGetDataType( 
   UANodeId dataTypeId,
   out Type dataType
)
public:
static bool TryGetDataType( 
   UANodeId^ dataTypeId,
   [Out] Type^ dataType
) 

Parameters

dataTypeId
The OPC-UA data type ID. The NodeId of the DataType definition.

Because the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId has an implicit conversion from System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a string (representing the expanded text of the nodeId) in place of this parameter, and the corresponding OPC UA node Id will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.EasyOpc.UA.AddressSpace.UANodeId.UANodeId Constructor(String) constructor instead.

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

dataType
The .NET data type that corresponds to the given data type ID.

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

Return Value

true if the .NET data type has been found for given OPC-UA data type ID; false otherwise.
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