Reference

OpcDiscreteItemNode<T> Members

Type

OpcDiscreteItemNode<T>

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Inherits members from OpcDiscreteItemNode, OpcDataItemNode, OpcVariableNode, OpcInstanceNode, OpcNode.

Constructors

OpcDiscreteItemNode

protected · 14 overloads

Overload	Description
OpcDiscreteItemNode(DiscreteItemState<T>)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.
OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.
OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, OpcName)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.
OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, OpcName, OpcNodeId)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.
OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, IOpcNode, OpcName)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.
OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, IOpcNode, OpcName, OpcNodeId)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.
OpcDiscreteItemNode(OpcNodeModel, OpcName)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified.
OpcDiscreteItemNode(OpcNodeModel, OpcName, T)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified with the initial value given by value.
OpcDiscreteItemNode(OpcNodeModel, OpcName, OpcNodeId)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified.
OpcDiscreteItemNode(OpcNodeModel, OpcName, OpcNodeId, T)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified with the initial value given by value.
OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified as a child node of the parent node given.
OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName, T)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified with the initial value defined by value as a child node of the parent node given.
OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified as a child node of the parent node given.
OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId, T)protected	Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified with the initial value defined by value as a child node of the parent node given.

OpcDiscreteItemNode(DiscreteItemState<T>)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.

protected OpcDiscreteItemNode(DiscreteItemState<T> content)

Protected Sub New(content As DiscreteItemState(Of T))

Parameters

Name	Type	Description
content	DiscreteItemState<T>	The DiscreteItemState<T> to wrap.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.

protected OpcDiscreteItemNode(DiscreteItemState<T> content, OpcNodeModel model)

Protected Sub New(content As DiscreteItemState(Of T), model As OpcNodeModel)

Parameters

Name	Type	Description
content	DiscreteItemState<T>	The DiscreteItemState<T> to wrap.
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, OpcName)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.

protected OpcDiscreteItemNode(
    DiscreteItemState<T> content,
    OpcNodeModel model,
    OpcName name)

Protected Sub New(
    content As DiscreteItemState(Of T),
    model As OpcNodeModel,
    name As OpcName)

Parameters

Name	Type	Description
content	DiscreteItemState<T>	The DiscreteItemState<T> to wrap.
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
name	OpcName	The OpcName through that the new discrete item node can be accessed.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, OpcName, OpcNodeId)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.

protected OpcDiscreteItemNode(
    DiscreteItemState<T> content,
    OpcNodeModel model,
    OpcName name,
    OpcNodeId id)

Protected Sub New(
    content As DiscreteItemState(Of T),
    model As OpcNodeModel,
    name As OpcName,
    id As OpcNodeId)

Parameters

Name	Type	Description
content	DiscreteItemState<T>	The DiscreteItemState<T> to wrap.
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
name	OpcName	The OpcName through that the new discrete item node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new discrete item node can be identified and accessed.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, IOpcNode, OpcName)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.

protected OpcDiscreteItemNode(
    DiscreteItemState<T> content,
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name)

Protected Sub New(
    content As DiscreteItemState(Of T),
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName)

Parameters

Name	Type	Description
content	DiscreteItemState<T>	The DiscreteItemState<T> to wrap.
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
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 discrete item node can be accessed.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

OpcDiscreteItemNode(DiscreteItemState<T>, OpcNodeModel, IOpcNode, OpcName, OpcNodeId)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class using the content as the instance to wrap.

protected OpcDiscreteItemNode(
    DiscreteItemState<T> content,
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name,
    OpcNodeId id)

Protected Sub New(
    content As DiscreteItemState(Of T),
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName,
    id As OpcNodeId)

Parameters

Name	Type	Description
content	DiscreteItemState<T>	The DiscreteItemState<T> to wrap.
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
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 discrete item node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new discrete item node can be identified and accessed.

Exceptions

Exception	Condition
ArgumentNullException	The content is a null reference (Nothing in Visual Basic).

OpcDiscreteItemNode(OpcNodeModel, OpcName)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified.

protected OpcDiscreteItemNode(OpcNodeModel model, OpcName name)

Protected Sub New(model As OpcNodeModel, name As OpcName)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
name	OpcName	The OpcName through that the new discrete item node can be accessed.

OpcDiscreteItemNode(OpcNodeModel, OpcName, T)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified with the initial value given by value.

protected OpcDiscreteItemNode(OpcNodeModel model, OpcName name, T value)

Protected Sub New(model As OpcNodeModel, name As OpcName, value As T)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
name	OpcName	The OpcName through that the new discrete item node can be accessed.
value	T	The initial value of the new discrete item node.

OpcDiscreteItemNode(OpcNodeModel, OpcName, OpcNodeId)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified.

protected OpcDiscreteItemNode(OpcNodeModel model, OpcName name, OpcNodeId id)

Protected Sub New(model As OpcNodeModel, name As OpcName, id As OpcNodeId)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
name	OpcName	The OpcName through that the new discrete item node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new discrete item node can be identified and accessed.

OpcDiscreteItemNode(OpcNodeModel, OpcName, OpcNodeId, T)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified with the initial value given by value.

protected OpcDiscreteItemNode(
    OpcNodeModel model,
    OpcName name,
    OpcNodeId id,
    T value)

Protected Sub New(
    model As OpcNodeModel,
    name As OpcName,
    id As OpcNodeId,
    value As T)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
name	OpcName	The OpcName through that the new discrete item node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new discrete item node can be identified and accessed.
value	T	The initial value of the new discrete item node.

OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified as a child node of the parent node given.

protected OpcDiscreteItemNode(OpcNodeModel model, IOpcNode parent, OpcName name)

Protected Sub New(model As OpcNodeModel, parent As IOpcNode, name As OpcName)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
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 discrete item node can be accessed.

OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName, T)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name specified with the initial value defined by value as a child node of the parent node given.

protected OpcDiscreteItemNode(
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name,
    T value)

Protected Sub New(
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName,
    value As T)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
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 discrete item node can be accessed.
value	T	The initial value of the new discrete item node.

OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified as a child node of the parent node given.

protected OpcDiscreteItemNode(
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name,
    OpcNodeId id)

Protected Sub New(
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName,
    id As OpcNodeId)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
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 discrete item node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new discrete item node can be identified and accessed.

OpcDiscreteItemNode(OpcNodeModel, IOpcNode, OpcName, OpcNodeId, T)

protected

Initializes a new instance of the OpcDiscreteItemNode<T> class accessible by the name and id specified with the initial value defined by value as a child node of the parent node given.

protected OpcDiscreteItemNode(
    OpcNodeModel model,
    IOpcNode parent,
    OpcName name,
    OpcNodeId id,
    T value)

Protected Sub New(
    model As OpcNodeModel,
    parent As IOpcNode,
    name As OpcName,
    id As OpcNodeId,
    value As T)

Parameters

Name	Type	Description
model	OpcNodeModel	The OpcNodeModel which defines the modelling directives for the new node or a null reference (Nothing in Visual Basic) if there are no directives are to be applied to the node.
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 discrete item node can be accessed.
id	OpcNodeId	The OpcNodeId through that the new discrete item node can be identified and accessed.
value	T	The initial value of the new discrete item node.

Properties

DataType

override

Gets or sets a value which defines a pre-defined used DataTypeId as one of the members defined by the OpcDataType enumeration to simplify querying standard data types.

public override OpcDataType DataType { get; set; }

Public Overrides Property DataType As OpcDataType

Property value

OpcDataType

One of the members defined by the OpcDataType enumeration.

Overrides

DataType

Value

Gets or sets the value of the discrete item node.

public T Value { get; set; }

Public Property Value As T

Property value

T

A T representing the value of the discrete item node. This can be also a null reference (Nothing in Visual Basic).

Methods

InitializeDefaults

protected · override

Initializes the default values used by the OpcDiscreteItemNode<T>.

protected override void InitializeDefaults()

Protected Overrides Sub InitializeDefaults()

Overrides

InitializeDefaults

Remarks

This method is used to ensure the availability of appropriate node specific default values. For more information like when this method is to be overwritten see InitializeDefaults.

ReadGenericValue

Reads the discrete item node value using the context specified.

public T ReadGenericValue(OpcReadVariableValueContext context)

Public Function ReadGenericValue(context As OpcReadVariableValueContext) As T

Parameters

Name	Type	Description
context	OpcReadVariableValueContext	The OpcReadVariableValueContext to use to read the discrete item node value.

Returns

T

The T discrete item node value associated with this node and read using the context specified. This can also be a null reference (Nothing in Visual Basic).

Exceptions

Exception	Condition
ArgumentNullException	The context is a null reference (Nothing in Visual Basic).

WriteGenericValue

Writes the value to the discrete item node value using the context specified.

public void WriteGenericValue(OpcWriteVariableValueContext context, T value)

Public Sub WriteGenericValue(
    context As OpcWriteVariableValueContext,
    value As T)

Parameters

Name	Type	Description
context	OpcWriteVariableValueContext	The OpcWriteVariableValueContext to use to write the discrete item node value specified.
value	T	The T to write to the discrete item node value.

Exceptions

Exception	Condition
ArgumentNullException	The context is a null reference (Nothing in Visual Basic).