Reference

OpcReadEventsHistoryRequest Members

Type

OpcReadEventsHistoryRequest

Namespace

Opc.UaFx.Services

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Also in

Opc.UaFx.Client

Inherits members from OpcServiceRequest<HistoryReadValueId, HistoryReadValueIdCollection>, OpcServiceRequest.

Constructors

OpcReadEventsHistoryRequest

4 overloads

Overload	Description
OpcReadEventsHistoryRequest(OpcReadEventHistoryDetails, IEnumerable<HistoryReadValueId>)	Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified details and commands and a new header.
OpcReadEventsHistoryRequest(OpcReadEventHistoryDetails, params HistoryReadValueId[])	Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified details and commands and a new header.
OpcReadEventsHistoryRequest(IOpcServiceRequestHeader, OpcReadEventHistoryDetails, IEnumerable<HistoryReadValueId>)	Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified header, details and commands.
OpcReadEventsHistoryRequest(IOpcServiceRequestHeader, OpcReadEventHistoryDetails, params HistoryReadValueId[])	Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified header, details and commands.

OpcReadEventsHistoryRequest(OpcReadEventHistoryDetails, IEnumerable<HistoryReadValueId>)

Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified details and commands and a new header.

[CLSCompliant(false)]
public OpcReadEventsHistoryRequest(
    OpcReadEventHistoryDetails details,
    IEnumerable<HistoryReadValueId> commands)

<CLSCompliant(False)>
Public Sub New(
    details As OpcReadEventHistoryDetails,
    commands As IEnumerable(Of HistoryReadValueId))

Parameters

Name	Type	Description
details	OpcReadEventHistoryDetails	The details which specify the events to read.
commands	IEnumerable<HistoryReadValueId>	The commands which specify the nodes whose event history is to be read.

Exceptions

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

OpcReadEventsHistoryRequest(OpcReadEventHistoryDetails, params HistoryReadValueId[])

Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified details and commands and a new header.

[CLSCompliant(false)]
public OpcReadEventsHistoryRequest(
    OpcReadEventHistoryDetails details,
    params HistoryReadValueId[] commands)

<CLSCompliant(False)>
Public Sub New(
    details As OpcReadEventHistoryDetails,
    ParamArray commands As HistoryReadValueId())

Parameters

Name	Type	Description
details	OpcReadEventHistoryDetails	The details which specify the events to read.
commands	params HistoryReadValueId[]	The commands which specify the nodes whose event history is to be read.

Exceptions

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

OpcReadEventsHistoryRequest(IOpcServiceRequestHeader, OpcReadEventHistoryDetails, IEnumerable<HistoryReadValueId>)

Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified header, details and commands.

[CLSCompliant(false)]
public OpcReadEventsHistoryRequest(
    IOpcServiceRequestHeader header,
    OpcReadEventHistoryDetails details,
    IEnumerable<HistoryReadValueId> commands)

<CLSCompliant(False)>
Public Sub New(
    header As IOpcServiceRequestHeader,
    details As OpcReadEventHistoryDetails,
    commands As IEnumerable(Of HistoryReadValueId))

Parameters

Name	Type	Description
header	IOpcServiceRequestHeader	The header of the request.
details	OpcReadEventHistoryDetails	The details which specify the events to read.
commands	IEnumerable<HistoryReadValueId>	The commands which specify the nodes whose event history is to be read.

Exceptions

Exception	Condition
ArgumentNullException	The header or the commands is a null reference (Nothing in Visual Basic).

OpcReadEventsHistoryRequest(IOpcServiceRequestHeader, OpcReadEventHistoryDetails, params HistoryReadValueId[])

Initializes a new instance of the OpcReadEventsHistoryRequest class using the specified header, details and commands.

[CLSCompliant(false)]
public OpcReadEventsHistoryRequest(
    IOpcServiceRequestHeader header,
    OpcReadEventHistoryDetails details,
    params HistoryReadValueId[] commands)

<CLSCompliant(False)>
Public Sub New(
    header As IOpcServiceRequestHeader,
    details As OpcReadEventHistoryDetails,
    ParamArray commands As HistoryReadValueId())

Parameters

Name	Type	Description
header	IOpcServiceRequestHeader	The header of the request.
details	OpcReadEventHistoryDetails	The details which specify the events to read.
commands	params HistoryReadValueId[]	The commands which specify the nodes whose event history is to be read.

Exceptions

Exception	Condition
ArgumentNullException	The header or the commands is a null reference (Nothing in Visual Basic).

Properties

Details

Gets the details which specify the events to read.

public OpcReadEventHistoryDetails Details { get; }

Public ReadOnly Property Details As OpcReadEventHistoryDetails

Property value

OpcReadEventHistoryDetails

The OpcReadEventHistoryDetails specified when the request was created.

ReleaseContinuationPoints

Gets or sets a value indicating whether the continuation points of the commands are to be released.

public bool ReleaseContinuationPoints { get; set; }

Public Property ReleaseContinuationPoints As Boolean

Property value

Boolean

The value true to release the continuation points without reading further events; otherwise the value false to continue reading. The default value is false.

TimestampsToReturn

Gets or sets a value which specifies the timestamps to be returned for each requested Value attribute.

public OpcTimestampsToReturn TimestampsToReturn { get; set; }

Public Property TimestampsToReturn As OpcTimestampsToReturn

Property value

OpcTimestampsToReturn

One of the members defined by the OpcTimestampsToReturn enumeration except Neither.

Remarks

Using the value Neither as the timestamps to return is not valid and results into a response with the status code BadInvalidTimestampArgument.