EasyUA Reference
ReadAttribute Method
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Opc.Ua.Core.Net4 Assembly > Opc.Ua Namespace > NodeState Class : ReadAttribute Method

Visual Basic (Usage)
C#

context: The context for the current operation.

attributeId: The attribute id.

indexRange: The index range.

dataEncoding: The data encoding.

value: The value.

Reads the value of an attribute.

Syntax

Visual Basic (Usage)	Copy Code
Dim instance As NodeState Dim context As ISystemContext Dim attributeId As UInteger Dim indexRange As NumericRange Dim dataEncoding As QualifiedName Dim value As DataValue Dim value As ServiceResult value = instance.ReadAttribute(context, attributeId, indexRange, dataEncoding, value)

Visual Basic (Usage)

Copy Code

Dim instance As NodeState
Dim context As ISystemContext
Dim attributeId As UInteger
Dim indexRange As NumericRange
Dim dataEncoding As QualifiedName
Dim value As DataValue
Dim value As ServiceResult
 
value = instance.ReadAttribute(context, attributeId, indexRange, dataEncoding, value)

C#
public virtual ServiceResult ReadAttribute( ISystemContext context, uint attributeId, NumericRange indexRange, QualifiedName dataEncoding, DataValue value )

public virtual ServiceResult ReadAttribute( 
   ISystemContext context,
   uint attributeId,
   NumericRange indexRange,
   QualifiedName dataEncoding,
   DataValue value
)

Parameters

context: The context for the current operation.
attributeId: The attribute id.
indexRange: The index range.
dataEncoding: The data encoding.
value: The value.

Return Value

An instance of the ServiceResult containing the status code and diagnostic info for the operation. ServiceResult.Good if successful. Detailed error information otherwise.

Requirements

Target Platforms: Windows 7/8/10, Windows Server 2003/2008/2012/2015, .NET4.x

Syntax

Parameters

Return Value

Requirements

See Also

Reference