Namespace: Opc.UaFx
Assemblies: Opc.UaFx.Advanced.dll, Opc.UaFx.Advanced.dll
The OpcPropertyNode type exposes the following members.
Initializes a new instance of the OpcPropertyNode class accessible by the name
specified as a child node of the parent
node given.
C#
public OpcPropertyNode(IOpcNode parent, OpcName name)
Parameters
parent
IOpcNode
The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name
OpcName
The OpcName through that the new property node can be accessed.
Initializes a new instance of the OpcPropertyNode class accessible by the name
specified with the initial value defined by value
as a child node of the parent
node given.
C#
public OpcPropertyNode(IOpcNode parent, OpcName name, object value)
Parameters
parent
IOpcNode
The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name
OpcName
The OpcName through that the new property node can be accessed.
value
Object
The initial value of the new property node.
Initializes a new instance of the OpcPropertyNode class accessible by the name
and id
specified as a child node of the parent
node given.
C#
public OpcPropertyNode(IOpcNode parent, OpcName name, OpcNodeId id)
Parameters
parent
IOpcNode
The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name
OpcName
The OpcName through that the new property node can be accessed.
id
OpcNodeId
The OpcNodeId through that the new property node can be identified and accessed.
Initializes a new instance of the OpcPropertyNode class accessible by the name
and id
specified with the initial value defined by value
as a child node of the parent
node given.
C#
public OpcPropertyNode(IOpcNode parent, OpcName name, OpcNodeId id, object value)
Parameters
parent
IOpcNode
The IOpcNode used as the parent node or a null reference (Nothing in Visual Basic) in the case there is no parent node available.
name
OpcName
The OpcName through that the new property node can be accessed.
id
OpcNodeId
The OpcNodeId through that the new property node can be identified and accessed.
value
Object
The initial value of the new property node.
Initializes a new instance of the OpcPropertyNode class accessible by the name
specified.
C#
public OpcPropertyNode(OpcName name)
Parameters
name
OpcName
The OpcName through that the new property node can be accessed.
Initializes a new instance of the OpcPropertyNode class accessible by the name
specified with the initial value given by value
.
C#
public OpcPropertyNode(OpcName name, object value)
Parameters
name
OpcName
The OpcName through that the new property node can be accessed.
value
Object
The initial value of the new property node.
Initializes a new instance of the OpcPropertyNode class accessible by the name
and id
specified.
C#
public OpcPropertyNode(OpcName name, OpcNodeId id)
Parameters
name
OpcName
The OpcName through that the new property node can be accessed.
id
OpcNodeId
The OpcNodeId through that the new property node can be identified and accessed.
Initializes a new instance of the OpcPropertyNode class accessible by the name
and id
specified with the initial value given by value
.
C#
public OpcPropertyNode(OpcName name, OpcNodeId id, object value)
Parameters
name
OpcName
The OpcName through that the new property node can be accessed.
id
OpcNodeId
The OpcNodeId through that the new property node can be identified and accessed.
value
Object
The initial value of the new property node.
Gets the default identifier which identifies the type that defines the underlying node reference within this OpcInstanceNode is referenced by its parent node.
C#
protected override OpcNodeId DefaultReferenceTypeId { get; }
Property Value
The OpcNodeId of the reference wihin this OpcInstanceNode is referenced. These reference defines the typical behaviour of an instance node and its role in the address space regarding its parent. If there exists no specific reference type a null reference (Nothing in Visual Basic).
Gets the default identifier which identifies the node that defines the underlying node type from that this OpcInstanceNode has been created.
C#
protected override sealed OpcNodeId DefaultTypeDefinitionId { get; }
Property Value
The OpcNodeId of the type node from that this OpcInstanceNode has been created from. These type node defines the typical structure of an instance node of its type definition. If there exists no specific type definition node a null reference (Nothing in Visual Basic).
Gets or sets a callback used to read the property value.
C#
public OpcReadPropertyValueCallback ReadPropertyValueCallback { get; set; }
Property Value
A OpcReadPropertyValueCallback used to read the property value as an Object. The value can also be a null reference (Nothing in Visual Basic).
Remarks
This callback is used in call chain with the ReadVariableValueCallback and will be called with the outcome of that callback routine (in case there is one defined).
Gets or sets a callback used to write the property value.
C#
public OpcWritePropertyValueCallback WritePropertyValueCallback { get; set; }
Property Value
A OpcWritePropertyValueCallback used to write the property value as an Object. The value can also be a null reference (Nothing in Visual Basic).
Remarks
This callback is used in call chain with the WriteVariableValueCallback and will be called with the outcome of that callback routine (in case there is one defined).
Reads the value of the property node using the context
and value
information specified.
C#
protected virtual OpcPropertyValue<object> ReadPropertyValueCore(OpcReadPropertyValueContext context, OpcPropertyValue<object> value)
Parameters
context
OpcReadPropertyValueContext
The OpcReadPropertyValueContext to use to read the property node value.
value
OpcPropertyValue<Object>
The OpcPropertyValue´1 containing the currently used value constructed by the value information contained in the property node cache.
Returns
The OpcPropertyValue´1 read using the ReadPropertyValueCallback or the value
if there is no custom callback routine defined.
Reads the value of the variable node using the context
and value
information specified.
C#
protected override sealed OpcVariableValue<object> ReadVariableValueCore(OpcReadVariableValueContext context, OpcVariableValue<object> value)
Parameters
context
OpcReadVariableValueContext
The OpcReadVariableValueContext to use to read the variable node value.
value
OpcVariableValue<Object>
The OpcVariableValue´1 containing the currently used value constructed by the value information contained in the variable node cache.
Returns
The OpcVariableValue´1 read using the ReadVariableValueCallback or the value
if there is no custom callback routine defined.
Writes the value of the property node using the context
and value
information specified.
C#
protected virtual OpcPropertyValue<object> WritePropertyValueCore(OpcWritePropertyValueContext context, OpcPropertyValue<object> value)
Parameters
context
OpcWritePropertyValueContext
The OpcWritePropertyValueContext to use to write the property node value.
value
OpcPropertyValue<Object>
The OpcPropertyValue´1 containing the currently used value constructed by the value information contained in the property node cache.
Returns
The OpcPropertyValue´1 written using the WritePropertyValueCallback or the value
if there is no custom callback routine defined.
Writes the value of the variable node using the context
and value
information specified.
C#
protected override sealed OpcVariableValue<object> WriteVariableValueCore(OpcWriteVariableValueContext context, OpcVariableValue<object> value)
Parameters
context
OpcWriteVariableValueContext
The OpcWriteVariableValueContext to use to write the variable node value.
value
OpcVariableValue<Object>
The OpcVariableValue´1 containing the currently used value constructed by the value information contained in the variable node cache.
Returns
The OpcVariableValue´1 written using the WriteVariableValueCallback or the value
if there is no custom callback routine defined.