Reference

OpcEventDataView Members

Type

OpcEventDataView

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Also in

Opc.UaFx.Client

Properties

EventTypeId

Gets the node identifier identifying the type of event node the data of the view belongs to.

public OpcNodeId EventTypeId { get; }

Public ReadOnly Property EventTypeId As OpcNodeId

Property value

OpcNodeId

An instance of the OpcNodeId in case there the Filter not includes type informaton a null reference (Nothing in Visual Basic).

Filter

Gets the OpcEventFilter used to gather the data of the view.

public OpcEventFilter Filter { get; }

Public ReadOnly Property Filter As OpcEventFilter

Property value

OpcEventFilter

The OpcEventFilter which defines the circumstances under which the data has been charged.

Methods

Create

static

Creates a new instance of the OpcEventDataView using the context, filter and data specified.

public static OpcEventDataView Create(
    OpcContext context,
    OpcEventFilter filter,
    IEnumerable<object> data)

Public Shared Function Create(
    context As OpcContext,
    filter As OpcEventFilter,
    data As IEnumerable(Of Object)) As OpcEventDataView

Parameters

Name	Type	Description
context	OpcContext	The OpcContext to which the new OpcEventDataView belongs to.
filter	OpcEventFilter	The OpcEventFilter whose SelectClause defines the order of the data.
data	IEnumerable<Object>	A sequence of object values in the same order as the select-clause operands of the filter. Pass null for fields that are not available.

Returns

OpcEventDataView

A new instance of the OpcEventDataView representing the event data of an OpcEvent instance.

Exceptions

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

Get

6 overloads

Overload	Description
Get<T>(string)	Retrieves the Value attribute of the element browsable through the name specified.
Get<T>(OpcName)	Retrieves the Value attribute of the element browsable through the name specified.
Get<T>(OpcAttribute, string)	Retrieves the value of the attribute of the element browsable through the name specified.
Get<T>(OpcAttribute, OpcName)	Retrieves the value of the attribute of the element browsable through the name specified.
Get<T>(OpcAttribute, params OpcName[])	Retrieves the value of the attribute of the element browsable through the pathElements specified.
Get<T>(OpcAttribute, OpcNamePath)	Retrieves the value of the attribute of the element browsable through the path specified.

Get<T>(string)

Retrieves the Value attribute of the element browsable through the name specified.

public T Get<T>(string name = "")

Public Function [Get](Of T)(name As String = "") As T

Type parameters

Name	Description
T	The type of the value to query.

Parameters

Name	Type	Description
name	String	The string formatted OpcName to use to browse to the element from that the requested Value attribute is to be retrieved. Optional, default "".

Returns

T

The T of the attribute of the element requested or the default value if the attribute value is not of the type specified by T.

Implements

Get

Get<T>(OpcName)

Retrieves the Value attribute of the element browsable through the name specified.

public T Get<T>(OpcName name)

Public Function [Get](Of T)(name As OpcName) As T

Type parameters

Name	Description
T	The type of value to query.

Parameters

Name	Type	Description
name	OpcName	The OpcName to use to browse to the element from that the requested Value attribute is to be retrieved.

Returns

T

The T of the attribute of the element requested or the default value if the attribute value is not of the type specified by T.

Implements

Get

Get<T>(OpcAttribute, string)

Retrieves the value of the attribute of the element browsable through the name specified.

public T Get<T>(OpcAttribute attribute, string name = "")

Public Function [Get](Of T)(attribute As OpcAttribute, name As String = "") As T

Type parameters

Name	Description
T	The type of value to query.

Parameters

Name	Type	Description
attribute	OpcAttribute	One of the members defined by the OpcAttribute enumeration identifying the attribute value to query from the element specified by the name.
name	String	The string formatted OpcName to use to browse to the element from that the requested attribute value is to be retrieved. Optional, default "".

Returns

T

The T of the attribute of the element requested or the default value if the attribute value is not of the type specified by T.

Implements

Get

Get<T>(OpcAttribute, OpcName)

Retrieves the value of the attribute of the element browsable through the name specified.

public T Get<T>(OpcAttribute attribute, OpcName name)

Public Function [Get](Of T)(attribute As OpcAttribute, name As OpcName) As T

Type parameters

Name	Description
T	The type of value to query.

Parameters

Name	Type	Description
attribute	OpcAttribute	One of the members defined by the OpcAttribute enumeration identifying the attribute value to query from the element specified by the name.
name	OpcName	The OpcName to use to browse to the element from that the requested attribute value is to be retrieved.

Returns

T

The T of the attribute of the element requested or the default value if the attribute value is not of the type specified by T.

Implements

Get

Get<T>(OpcAttribute, params OpcName[])

Retrieves the value of the attribute of the element browsable through the pathElements specified.

public T Get<T>(OpcAttribute attribute, params OpcName[] pathElements)

Public Function [Get](Of T)(
    attribute As OpcAttribute,
    ParamArray pathElements As OpcName()) As T

Type parameters

Name	Description
T	The type of value to query.

Parameters

Name	Type	Description
attribute	OpcAttribute	One of the members defined by the OpcAttribute enumeration identifying the attribute value to query from the element specified by the pathElements.
pathElements	params OpcName[]	The OpcName's to use to browse to the element from that the requested attribute value is to be retrieved.

Returns

T

The T of the attribute of the element requested or the default value if the attribute value is not of the type specified by T.

Exceptions

Exception	Condition
ArgumentNullException	One of the items in pathElements is a null reference (Nothing in Visual Basic).

Implements

Get

Get<T>(OpcAttribute, OpcNamePath)

Retrieves the value of the attribute of the element browsable through the path specified.

public T Get<T>(OpcAttribute attribute, OpcNamePath path)

Public Function [Get](Of T)(attribute As OpcAttribute, path As OpcNamePath) As T

Type parameters

Name	Description
T	The type of value to query.

Parameters

Name	Type	Description
attribute	OpcAttribute	One of the members defined by the OpcAttribute enumeration identifying the attribute value to query from the element specified by the path.
path	OpcNamePath	The sequence OpcName instances to use to browse to the element from that the requested attribute value is to be retrieved.

Returns

T

The T of the attribute of the element requested or the default value if the attribute value is not of the type specified by T.

Exceptions

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

Implements

Get

ToArray

Copies the elements of this data store to a new array.

public object[] ToArray()

Public Function ToArray() As Object()

Returns

Object[]

An object array containing copies of the elements of this data store.

Implements

ToArray