Reference

OpcValue<T> Members

Type

OpcValue<T>

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Also in

Opc.UaFx.Client

Inherits members from OpcValue.

Constructors

OpcValue

7 overloads

Overload	Description
OpcValue(T)	Initializes a new instance of the OpcValue<T> class using the value.
OpcValue(T, DateTime)	Initializes a new instance of the OpcValue<T> class using the value and the sourceTimestamp of the value.
OpcValue(T, DateTime, OpcStatus)	Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp and status of the value.
OpcValue(T, DateTime, OpcStatusCode)	Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp and statusCode of the value.
OpcValue(T, DateTime, DateTime)	Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp and serverTimestamp of the value.
OpcValue(T, DateTime, DateTime, OpcStatus)	Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp, serverTimestamp and status of the value.
OpcValue(T, DateTime, DateTime, OpcStatusCode)	Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp, serverTimestamp and statusCode of the value.

OpcValue(T)

Initializes a new instance of the OpcValue<T> class using the value.

public OpcValue(T value)

Public Sub New(value As T)

Parameters

Name	Type	Description
value	T	The value to represent.

OpcValue(T, DateTime)

Initializes a new instance of the OpcValue<T> class using the value and the sourceTimestamp of the value.

public OpcValue(T value, DateTime sourceTimestamp)

Public Sub New(value As T, sourceTimestamp As Date)

Parameters

Name	Type	Description
value	T	The value to represent.
sourceTimestamp	DateTime	The timestamp at which the source produced the value.

OpcValue(T, DateTime, OpcStatus)

Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp and status of the value.

public OpcValue(T value, DateTime sourceTimestamp, OpcStatus status)

Public Sub New(value As T, sourceTimestamp As Date, status As OpcStatus)

Parameters

Name	Type	Description
value	T	The value to represent.
sourceTimestamp	DateTime	The timestamp at which the source produced the value.
status	OpcStatus	The status information associated with the value.

OpcValue(T, DateTime, OpcStatusCode)

Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp and statusCode of the value.

[CLSCompliant(false)]
public OpcValue(T value, DateTime sourceTimestamp, OpcStatusCode statusCode)

<CLSCompliant(False)>
Public Sub New(value As T, sourceTimestamp As Date, statusCode As OpcStatusCode)

Parameters

Name	Type	Description
value	T	The value to represent.
sourceTimestamp	DateTime	The timestamp at which the source produced the value.
statusCode	OpcStatusCode	One of the OpcStatusCode members which defines the status information associated with the value.

OpcValue(T, DateTime, DateTime)

Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp and serverTimestamp of the value.

public OpcValue(T value, DateTime sourceTimestamp, DateTime serverTimestamp)

Public Sub New(value As T, sourceTimestamp As Date, serverTimestamp As Date)

Parameters

Name	Type	Description
value	T	The value to represent.
sourceTimestamp	DateTime	The timestamp at which the source produced the value.
serverTimestamp	DateTime	The timestamp at which the server recorded the value.

OpcValue(T, DateTime, DateTime, OpcStatus)

Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp, serverTimestamp and status of the value.

public OpcValue(
    T value,
    DateTime sourceTimestamp,
    DateTime serverTimestamp,
    OpcStatus status)

Public Sub New(
    value As T,
    sourceTimestamp As Date,
    serverTimestamp As Date,
    status As OpcStatus)

Parameters

Name	Type	Description
value	T	The value to represent.
sourceTimestamp	DateTime	The timestamp at which the source produced the value.
serverTimestamp	DateTime	The timestamp at which the server recorded the value.
status	OpcStatus	The status information associated with the value.

OpcValue(T, DateTime, DateTime, OpcStatusCode)

Initializes a new instance of the OpcValue<T> class using the value, sourceTimestamp, serverTimestamp and statusCode of the value.

[CLSCompliant(false)]
public OpcValue(
    T value,
    DateTime sourceTimestamp,
    DateTime serverTimestamp,
    OpcStatusCode statusCode)

<CLSCompliant(False)>
Public Sub New(
    value As T,
    sourceTimestamp As Date,
    serverTimestamp As Date,
    statusCode As OpcStatusCode)

Parameters

Name	Type	Description
value	T	The value to represent.
sourceTimestamp	DateTime	The timestamp at which the source produced the value.
serverTimestamp	DateTime	The timestamp at which the server recorded the value.
statusCode	OpcStatusCode	One of the OpcStatusCode members which defines the status information associated with the value.

Properties

DataTypeId

override

Gets the node identifier of the DataType of the value represented.

public override sealed OpcNodeId DataTypeId { get; }

Public NotOverridable Overrides ReadOnly Property DataTypeId As OpcNodeId

Property value

OpcNodeId

An instance of the OpcNodeId representing the node identifier of the DataType.

Overrides

DataTypeId

Value

Gets or sets the T value represented.

public T Value { get; set; }

Public Property Value As T

Property value

T

The value of the type T associated with the metadata represented.

ValueAsObject

Gets or sets the value represented.

public object ValueAsObject { get; set; }

Public Property ValueAsObject As Object

Property value

Object

The value associated with the metadata represented.

Methods

CompareTo

3 overloads

Overload	Description
CompareTo(object)override	Compares the current OpcValue<T> with the other.
CompareTo(OpcValue)override	Compares the current OpcValue<T> with another OpcValue<T>.
CompareTo(OpcValue<T>)virtual	Compares the current OpcValue<T> with another OpcValue<T>.

CompareTo(object)

override

Compares the current OpcValue<T> with the other.

public override int CompareTo(object other)

Public Overrides Function CompareTo(other As Object) As Integer

Parameters

Name	Type	Description
other	Object	The OpcValue<T> to compare with this OpcValue<T>.

Returns

Int32

A 32-bit signed integer that indicates the relative order of the objects being compared (CompareTo(object)).

Overrides

CompareTo

Implements

CompareTo(object)

CompareTo(OpcValue)

override

Compares the current OpcValue<T> with another OpcValue<T>.

public override int CompareTo(OpcValue other)

Public Overrides Function CompareTo(other As OpcValue) As Integer

Parameters

Name	Type	Description
other	OpcValue	The OpcValue<T> to compare with this OpcValue<T>.

Returns

Int32

A 32-bit signed integer that indicates the relative order of the objects being compared (CompareTo(T)).

Overrides

CompareTo

CompareTo(OpcValue<T>)

virtual

Compares the current OpcValue<T> with another OpcValue<T>.

public virtual int CompareTo(OpcValue<T> other)

Public Overridable Function CompareTo(other As OpcValue(Of T)) As Integer

Parameters

Name	Type	Description
other	OpcValue<T>	The OpcValue<T> to compare with this OpcValue<T>.

Returns

Int32

A 32-bit signed integer that indicates the relative order of the objects being compared (CompareTo(T)).

Implements

CompareTo(OpcValue<T>)

Equals

3 overloads

Overload	Description
Equals(object)override	Determines whether the specified other is equal to this OpcValue<T>.
Equals(OpcValue)override	Determines whether the specified other is equal to this OpcValue<T>.
Equals(OpcValue<T>)virtual	Determines whether the specified other is equal to this OpcValue.

Equals(object)

override

Determines whether the specified other is equal to this OpcValue<T>.

public override bool Equals(object other)

Public Overrides Function Equals(other As Object) As Boolean

Parameters

Name	Type	Description
other	Object	The OpcValue<T> to compare to the current OpcValue<T>.

Returns

Boolean

The value true if the specified OpcValue<T> is equal to the current OpcValue; otherwise the value false.

Overrides

Equals

Equals(OpcValue)

override

Determines whether the specified other is equal to this OpcValue<T>.

public override bool Equals(OpcValue other)

Public Overrides Function Equals(other As OpcValue) As Boolean

Parameters

Name	Type	Description
other	OpcValue	The OpcValue<T> to compare to the current OpcValue<T>.

Returns

Boolean

The value true if the specified OpcValue<T> is equal to the current OpcValue; otherwise the value false.

Overrides

Equals

Equals(OpcValue<T>)

virtual

Determines whether the specified other is equal to this OpcValue.

public virtual bool Equals(OpcValue<T> other)

Public Overridable Function Equals(other As OpcValue(Of T)) As Boolean

Parameters

Name	Type	Description
other	OpcValue<T>	The OpcValue to compare to the current OpcValue.

Returns

Boolean

The value true if the specified OpcValue is equal to the current OpcValue; otherwise the value false.

Implements

Equals(OpcValue<T>)

GetHashCode

override

Retrieves a hash code for this OpcValue<T>.

public override int GetHashCode()

Public Overrides Function GetHashCode() As Integer

Returns

Int32

An int that contains the hash code for the OpcValue<T>.

Overrides

GetHashCode

Operators

Equality

static

Returns a value indicating whether two instance of OpcValue<T> are equal.

public static bool operator ==(OpcValue<T> left, OpcValue<T> right)

Public Shared Operator =(
    left As OpcValue(Of T),
    right As OpcValue(Of T)) As Boolean

Parameters

Name	Type	Description
left	OpcValue<T>	The first OpcValue<T> to compare.
right	OpcValue<T>	The second OpcValue<T> to compare.

Returns

Boolean

The value true if left and right are equal; otherwise the value false.

Explicit

static

Converts a OpcValue<T> to an DataValue object.

[CLSCompliant(false)]
public static explicit operator DataValue(OpcValue<T> value)

<CLSCompliant(False)>
Public Shared Narrowing Operator CType(value As OpcValue(Of T)) As DataValue

Parameters

Name	Type	Description
value	OpcValue<T>	A OpcValue<T> that represents the value.

Returns

DataValue

An instance of the DataValue class initialized from the value.

GreaterThan

static

Determines whether the first specified OpcValue<T> object is greater than the second specified OpcValue<T> object.

public static bool operator >(OpcValue<T> left, OpcValue<T> right)

Public Shared Operator >(
    left As OpcValue(Of T),
    right As OpcValue(Of T)) As Boolean

Parameters

Name	Type	Description
left	OpcValue<T>	The first OpcValue<T> object.
right	OpcValue<T>	The second OpcValue<T> object.

Returns

Boolean

The value true if left is greater than right; otherwise, false.

GreaterThanOrEqual

static

Determines whether the first specified OpcValue<T> object is greater than or equal to the second specified OpcValue<T> object.

public static bool operator >=(OpcValue<T> left, OpcValue<T> right)

Public Shared Operator >=(
    left As OpcValue(Of T),
    right As OpcValue(Of T)) As Boolean

Parameters

Name	Type	Description
left	OpcValue<T>	The first OpcValue<T> object.
right	OpcValue<T>	The second OpcValue<T> object.

Returns

Boolean

The value true if left is greater than or equal to right; otherwise, false.

Implicit

static · 2 overloads

Overload	Description
implicit operator OpcValue<T>(DataValue)static	Converts a DataValue to an OpcValue<T> object.
implicit operator OpcValue<T>(Variant)static	Converts a Variant to an OpcValue<T> object.

implicit operator OpcValue<T>(DataValue)

static

Converts a DataValue to an OpcValue<T> object.

[CLSCompliant(false)]
public static implicit operator OpcValue<T>(DataValue value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As DataValue) As OpcValue(Of T)

Parameters

Name	Type	Description
value	DataValue	A DataValue that represents the value.

Returns

OpcValue<T>

An instance of the OpcValue<T> class initialized from the value.

implicit operator OpcValue<T>(Variant)

static

Converts a Variant to an OpcValue<T> object.

[CLSCompliant(false)]
public static implicit operator OpcValue<T>(Variant value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As [Variant]) As OpcValue(Of T)

Parameters

Name	Type	Description
value	Variant	A Variant that represents the value.

Returns

OpcValue<T>

An instance of the OpcValue<T> class initialized from the value.

Inequality

static

Returns a value indicating whether two instances of OpcValue<T> are not equal.

public static bool operator !=(OpcValue<T> left, OpcValue<T> right)

Public Shared Operator <>(
    left As OpcValue(Of T),
    right As OpcValue(Of T)) As Boolean

Parameters

Name	Type	Description
left	OpcValue<T>	The first OpcValue<T> to compare.
right	OpcValue<T>	The second OpcValue<T> to compare.

Returns

Boolean

The value true if left and right are not equal; otherwise the value false.

LessThan

static

Determines whether the first specified OpcValue<T> object is less than the second specified OpcValue<T> object.

public static bool operator <(OpcValue<T> left, OpcValue<T> right)

Public Shared Operator <(
    left As OpcValue(Of T),
    right As OpcValue(Of T)) As Boolean

Parameters

Name	Type	Description
left	OpcValue<T>	The first OpcValue<T> object.
right	OpcValue<T>	The second OpcValue<T> object.

Returns

Boolean

The value true if left is less than right; otherwise the value false.

Exceptions

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

LessThanOrEqual

static

Determines whether the first specified OpcValue<T> object is less than or equal to the second OpcValue<T> object.

public static bool operator <=(OpcValue<T> left, OpcValue<T> right)

Public Shared Operator <=(
    left As OpcValue(Of T),
    right As OpcValue(Of T)) As Boolean

Parameters

Name	Type	Description
left	OpcValue<T>	The first OpcValue<T> object.
right	OpcValue<T>	The second OpcValue<T> object.

Returns

Boolean

The value true if left is less than or equal to right; otherwise the value false.

Exceptions

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