DAItemMappingKind Enumeration

Specifies how the OPC Data Access item will be mapped.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ComVisibleAttribute(False)>
<DisplayName2Attribute("OPC-DA Item Mapping Kind")>
Public Enum DAItemMappingKind 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable

'Usage
 
Dim instance As DAItemMappingKind

[ComVisible(false)]
[DisplayName2("OPC-DA Item Mapping Kind")]
public enum DAItemMappingKind : System.Enum, System.IComparable, System.IConvertible, System.IFormattable

[ComVisible(false)]
[DisplayName2("OPC-DA Item Mapping Kind")]
public enum class DAItemMappingKind : public System.Enum, System.IComparable, System.IConvertible, System.IFormattable

Members

Member	Value	Description
ErrorId	1	Map the error ID, as System.String.
ErrorMessage	3	Map the error message, as System.String. An empty string if the operation has been successful.
Exception	2	Map the exception, as Exception or a derived type. `null` if the operation has been successful.
Quality	9	Map the OPC quality, as OpcLabs.EasyOpc.DataAccess.DAQuality. Remarks: The linking target value is not changed if the operation resulted in an exception.
Result	0	Map the operation result, as OpcLabs.BaseLib.OperationModel.OperationResult or a derived type specific for the operation.
StatusInfo	4	Map the status information, as StatusInfo.
Timestamp	7	Map the timestamp, as System.DateTime. In UTC. Remarks: The linking target value is not changed if the operation resulted in an exception.
TimestampLocal	8	Map the timestamp, as System.DateTime. In local time. Remarks: The linking target value is not changed if the operation resulted in an exception.
Value	6	Map the item value, as System.Object or a specific type. This is the default mapping kind. Remarks: The linking target value is not changed if the operation resulted in an exception.
Vtq	5	Map the item value/timestamp/quality combination, as OpcLabs.EasyOpc.DataAccess.DAVtq or a generic `DAVtq`. Remarks: The linking target value is not changed if the operation resulted in an exception.

Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         OpcLabs.EasyOpc.DataAccess.LiveMapping.DAItemMappingKind

Requirements

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

Reference

OpcLabs.EasyOpc.DataAccess.LiveMapping Namespace

Documentation Home, Send Documentation Feedback. Technical Support