Reference

OpcValue Members

Type

OpcValue

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Also in

Opc.UaFx.Client

Constructors

OpcValue

7 overloads

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

OpcValue(object)

Initializes a new instance of the OpcValue class using the value.

public OpcValue(object value)

Public Sub New(value As Object)

Parameters

Name	Type	Description
value	Object	The value to represent.

OpcValue(object, DateTime)

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

public OpcValue(object value, DateTime sourceTimestamp)

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

Parameters

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

OpcValue(object, DateTime, OpcStatus)

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

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

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

Parameters

Name	Type	Description
value	Object	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(object, DateTime, OpcStatusCode)

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

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

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

Parameters

Name	Type	Description
value	Object	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(object, DateTime, DateTime)

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

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

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

Parameters

Name	Type	Description
value	Object	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(object, DateTime, DateTime, OpcStatus)

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

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

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

Parameters

Name	Type	Description
value	Object	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(object, DateTime, DateTime, OpcStatusCode)

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

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

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

Parameters

Name	Type	Description
value	Object	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

DataType

Gets the type of value represented.

public OpcDataType DataType { get; }

Public ReadOnly Property DataType As OpcDataType

Property value

OpcDataType

One of the members defined by the OpcDataType. In case there Value is a null reference (Nothing in Visual Basic) Null.

DataTypeId

virtual

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

public virtual OpcNodeId DataTypeId { get; }

Public Overridable ReadOnly Property DataTypeId As OpcNodeId

Property value

OpcNodeId

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

Rank

Gets the rank of the value represented.

public int Rank { get; }

Public ReadOnly Property Rank As Integer

Property value

Int32

The rank of the value or -2 in case there is no type information available for the value represented.

ServerPicoseconds

Gets or sets the difference between a high resolution timestamp with a resolution of 10 picoseconds and the ServerTimestamp which only has a 100 ns resolution.

public ushort ServerPicoseconds { get; set; }

Public Property ServerPicoseconds As UShort

Property value

UInt16

The number of 10 picosecond intervals for the ServerTimestamp.

Remarks

The value should be less than 10 000.

ServerTimestamp

Gets or sets the timestamp at which the server recorded the value.

public DateTime? ServerTimestamp { get; set; }

Public Property ServerTimestamp As Date?

Property value

Nullable<DateTime>

The timestamp of the server for the value or a null reference (Nothing in Visual Basic) in case there is no timestamp provided by the server.

SourcePicoseconds

Gets or sets the difference between a high resolution timestamp with a resolution of 10 picoseconds and the SourceTimestamp which only has a 100 ns resolution.

public ushort SourcePicoseconds { get; set; }

Public Property SourcePicoseconds As UShort

Property value

UInt16

The number of 10 picosecond intervals for the SourceTimestamp.

Remarks

The value should be less than 10 000.

SourceTimestamp

Gets or sets the timestamp of the source from that the value originates.

public DateTime? SourceTimestamp { get; set; }

Public Property SourceTimestamp As Date?

Property value

Nullable<DateTime>

The timestamp of the source for the value or a null reference (Nothing in Visual Basic) in case there is no timestamp provided by the source of the value.

Status

Gets the status information which defines the servers ability to access/provide the value.

public OpcStatus Status { get; }

Public ReadOnly Property Status As OpcStatus

Property value

OpcStatus

The status information associated with the value.

Remarks

If the status information indicates an error then the value is to be ignored and the server shall set it to a null reference (Nothing in Visual Basic).

Value

Gets or sets the value represented.

public object Value { get; set; }

Public Property Value As Object

Property value

Object

The value associated with the metadata represented.

Methods

As

Retrieves the underlying Value as the type specified by T.

public T As<T>(T defaultValue = default)

Public Function [As](Of T)(defaultValue As T = Nothing) As T

Type parameters

Name	Description
T	The type to use to retrieve the Value.

Parameters

Name	Type	Description
defaultValue	T	The value to provide in the case there the Value is a null reference (Nothing in Visual Basic). Optional, default default.

Returns

T

The Value typed as T or defaultValue in case there Value is a null reference (Nothing in Visual Basic) or could not converted to the T specified.

AsValue

since v2.8

Retrieves a new OpcValue<T> instance its Value is of the type specified by T.

public OpcValue<T> AsValue<T>()

Public Function AsValue(Of T)() As OpcValue(Of T)

Type parameters

Name	Description
T	The type to use to retrieve a new OpcValue<T> instance.

Returns

OpcValue<T>

A new instance of the OpcValue<T> class its Value is typed as T and its further value information has been adopted from this OpcValue or a null reference (Nothing in Visual Basic) if the Value could not converted to the T specified.

CompareTo

virtual · 2 overloads

Overload	Description
CompareTo(object)virtual	Compares the current OpcValue with the other.
CompareTo(OpcValue)virtual	Compares the current OpcValue with another OpcValue.

CompareTo(object)

virtual

Compares the current OpcValue with the other.

public virtual int CompareTo(object other)

Public Overridable Function CompareTo(other As Object) As Integer

Parameters

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

Returns

Int32

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

Implements

CompareTo(object)

CompareTo(OpcValue)

virtual

Compares the current OpcValue with another OpcValue.

public virtual int CompareTo(OpcValue other)

Public Overridable Function CompareTo(other As OpcValue) As Integer

Parameters

Name	Type	Description
other	OpcValue	The OpcValue to compare with this OpcValue.

Returns

Int32

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

Implements

CompareTo(OpcValue)

Equals

2 overloads

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

Equals(object)

override

Determines whether the specified other is equal to this OpcValue.

public override bool Equals(object other)

Public Overrides Function Equals(other As Object) As Boolean

Parameters

Name	Type	Description
other	Object	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.

Overrides

Equals(object)

Equals(OpcValue)

virtual

Determines whether the specified other is equal to this OpcValue.

public virtual bool Equals(OpcValue other)

Public Overridable Function Equals(other As OpcValue) As Boolean

Parameters

Name	Type	Description
other	OpcValue	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)

GetHashCode

override

Retrieves a hash code for this OpcValue.

public override int GetHashCode()

Public Overrides Function GetHashCode() As Integer

Returns

Int32

An int that contains the hash code for the OpcValue.

Overrides

GetHashCode()

ToString

2 overloads

Overload	Description
ToString()override	Converts the value of this instance to its equivalent string representation.
ToString(string, IFormatProvider)virtual	Converts the value of this instance to its equivalent string representation using the specified format and culture-specific format information.

ToString()

override

Converts the value of this instance to its equivalent string representation.

public override string ToString()

Public Overrides Function ToString() As String

Returns

String

The string representation of the value of this instance.

Overrides

ToString()

ToString(string, IFormatProvider)

virtual

Converts the value of this instance to its equivalent string representation using the specified format and culture-specific format information.

public virtual string ToString(string format, IFormatProvider formatProvider)

Public Overridable Function ToString(
    format As String,
    formatProvider As IFormatProvider) As String

Parameters

Name	Type	Description
format	String	A standard or custom format string.
formatProvider	IFormatProvider	An object that supplies culture-specific formatting information.

Returns

String

The string representation of the value of this instance as specified by format and provider.

Exceptions

Exception	Condition
FormatException	The format is invalid or not supported.

Implements

ToString(string, IFormatProvider)

Operators

Equality

static

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

public static bool operator ==(OpcValue left, OpcValue right)

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

Parameters

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

Returns

Boolean

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

Explicit

static

Converts a OpcValue to an DataValue object.

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

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

Parameters

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

Returns

DataValue

An instance of the DataValue class initialized from the value.

GreaterThan

static

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

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

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

Parameters

Name	Type	Description
left	OpcValue	The first OpcValue object.
right	OpcValue	The second OpcValue object.

Returns

Boolean

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

GreaterThanOrEqual

static

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

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

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

Parameters

Name	Type	Description
left	OpcValue	The first OpcValue object.
right	OpcValue	The second OpcValue object.

Returns

Boolean

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

Implicit

static · 29 overloads

Overload	Description
implicit operator OpcValue(bool)static	Converts a bool to an OpcValue object.
implicit operator OpcValue(bool?)static	Converts a null-able bool to an OpcValue object.
implicit operator OpcValue(byte)static	Converts a byte to an OpcValue object.
implicit operator OpcValue(byte?)static	Converts a null-able byte to an OpcValue object.
implicit operator OpcValue(sbyte)static	Converts a sbyte to an OpcValue object.
implicit operator OpcValue(sbyte?)static	Converts a null-able sbyte to an OpcValue object.
implicit operator OpcValue(char)static	Converts a char to an OpcValue object.
implicit operator OpcValue(char?)static	Converts a null-able char to an OpcValue object.
implicit operator OpcValue(decimal)static	Converts a decimal to an OpcValue object.
implicit operator OpcValue(decimal?)static	Converts a null-able decimal to an OpcValue object.
implicit operator OpcValue(double)static	Converts a double to an OpcValue object.
implicit operator OpcValue(double?)static	Converts a null-able double to an OpcValue object.
implicit operator OpcValue(float)static	Converts a float to an OpcValue object.
implicit operator OpcValue(float?)static	Converts a null-able float to an OpcValue object.
implicit operator OpcValue(int)static	Converts a int to an OpcValue object.
implicit operator OpcValue(int?)static	Converts a null-able int to an OpcValue object.
implicit operator OpcValue(uint)static	Converts a uint to an OpcValue object.
implicit operator OpcValue(uint?)static	Converts a null-able uint to an OpcValue object.
implicit operator OpcValue(long)static	Converts a ulong to an OpcValue object.
implicit operator OpcValue(long?)static	Converts a null-able ulong to an OpcValue object.
implicit operator OpcValue(ulong)static	Converts a ulong to an OpcValue object.
implicit operator OpcValue(ulong?)static	Converts a null-able ulong to an OpcValue object.
implicit operator OpcValue(short)static	Converts a ushort to an OpcValue object.
implicit operator OpcValue(short?)static	Converts a null-able ushort to an OpcValue object.
implicit operator OpcValue(ushort)static	Converts a ushort to an OpcValue object.
implicit operator OpcValue(ushort?)static	Converts a null-able ushort to an OpcValue object.
implicit operator OpcValue(string)static	Converts a string to an OpcValue object.
implicit operator OpcValue(DataValue)static	Converts a DataValue to an OpcValue object.
implicit operator OpcValue(Variant)static	Converts a Variant to an OpcValue object.

implicit operator OpcValue(bool)

static

Converts a bool to an OpcValue object.

public static implicit operator OpcValue(bool value)

Public Shared Widening Operator CType(value As Boolean) As OpcValue

Parameters

Name	Type	Description
value	Boolean	A bool that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(bool?)

static

Converts a null-able bool to an OpcValue object.

public static implicit operator OpcValue(bool? value)

Public Shared Widening Operator CType(value As Boolean?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Boolean>	A null-able bool that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(byte)

static

Converts a byte to an OpcValue object.

public static implicit operator OpcValue(byte value)

Public Shared Widening Operator CType(value As Byte) As OpcValue

Parameters

Name	Type	Description
value	Byte	A byte that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(byte?)

static

Converts a null-able byte to an OpcValue object.

public static implicit operator OpcValue(byte? value)

Public Shared Widening Operator CType(value As Byte?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Byte>	A null-able byte that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(sbyte)

static

Converts a sbyte to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(sbyte value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As SByte) As OpcValue

Parameters

Name	Type	Description
value	SByte	A sbyte that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(sbyte?)

static

Converts a null-able sbyte to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(sbyte? value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As SByte?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<SByte>	A null-able sbyte that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(char)

static

Converts a char to an OpcValue object.

public static implicit operator OpcValue(char value)

Public Shared Widening Operator CType(value As Char) As OpcValue

Parameters

Name	Type	Description
value	Char	A char that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(char?)

static

Converts a null-able char to an OpcValue object.

public static implicit operator OpcValue(char? value)

Public Shared Widening Operator CType(value As Char?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Char>	A null-able char that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(decimal)

static

Converts a decimal to an OpcValue object.

public static implicit operator OpcValue(decimal value)

Public Shared Widening Operator CType(value As Decimal) As OpcValue

Parameters

Name	Type	Description
value	Decimal	A decimal that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(decimal?)

static

Converts a null-able decimal to an OpcValue object.

public static implicit operator OpcValue(decimal? value)

Public Shared Widening Operator CType(value As Decimal?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Decimal>	A null-able decimal that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(double)

static

Converts a double to an OpcValue object.

public static implicit operator OpcValue(double value)

Public Shared Widening Operator CType(value As Double) As OpcValue

Parameters

Name	Type	Description
value	Double	A double that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(double?)

static

Converts a null-able double to an OpcValue object.

public static implicit operator OpcValue(double? value)

Public Shared Widening Operator CType(value As Double?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Double>	A null-able double that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(float)

static

Converts a float to an OpcValue object.

public static implicit operator OpcValue(float value)

Public Shared Widening Operator CType(value As Single) As OpcValue

Parameters

Name	Type	Description
value	Single	A float that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(float?)

static

Converts a null-able float to an OpcValue object.

public static implicit operator OpcValue(float? value)

Public Shared Widening Operator CType(value As Single?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Single>	A null-able float that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(int)

static

Converts a int to an OpcValue object.

public static implicit operator OpcValue(int value)

Public Shared Widening Operator CType(value As Integer) As OpcValue

Parameters

Name	Type	Description
value	Int32	A int that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(int?)

static

Converts a null-able int to an OpcValue object.

public static implicit operator OpcValue(int? value)

Public Shared Widening Operator CType(value As Integer?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Int32>	A null-able int that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(uint)

static

Converts a uint to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(uint value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As UInteger) As OpcValue

Parameters

Name	Type	Description
value	UInt32	A uint that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(uint?)

static

Converts a null-able uint to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(uint? value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As UInteger?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<UInt32>	A null-able uint that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(long)

static

Converts a ulong to an OpcValue object.

public static implicit operator OpcValue(long value)

Public Shared Widening Operator CType(value As Long) As OpcValue

Parameters

Name	Type	Description
value	Int64	A ulong that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(long?)

static

Converts a null-able ulong to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(long? value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As Long?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Int64>	A null-able ulong that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(ulong)

static

Converts a ulong to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(ulong value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As ULong) As OpcValue

Parameters

Name	Type	Description
value	UInt64	A ulong that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(ulong?)

static

Converts a null-able ulong to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(ulong? value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As ULong?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<UInt64>	A null-able ulong that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(short)

static

Converts a ushort to an OpcValue object.

public static implicit operator OpcValue(short value)

Public Shared Widening Operator CType(value As Short) As OpcValue

Parameters

Name	Type	Description
value	Int16	A ushort that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(short?)

static

Converts a null-able ushort to an OpcValue object.

public static implicit operator OpcValue(short? value)

Public Shared Widening Operator CType(value As Short?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<Int16>	A null-able ushort that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(ushort)

static

Converts a ushort to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(ushort value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As UShort) As OpcValue

Parameters

Name	Type	Description
value	UInt16	A ushort that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(ushort?)

static

Converts a null-able ushort to an OpcValue object.

[CLSCompliant(false)]
public static implicit operator OpcValue(ushort? value)

<CLSCompliant(False)>
Public Shared Widening Operator CType(value As UShort?) As OpcValue

Parameters

Name	Type	Description
value	Nullable<UInt16>	A null-able ushort that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(string)

static

Converts a string to an OpcValue object.

public static implicit operator OpcValue(string value)

Public Shared Widening Operator CType(value As String) As OpcValue

Parameters

Name	Type	Description
value	String	A string that represents the value.

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(DataValue)

static

Converts a DataValue to an OpcValue object.

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

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

Parameters

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

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

implicit operator OpcValue(Variant)

static

Converts a Variant to an OpcValue object.

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

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

Parameters

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

Returns

OpcValue

An instance of the OpcValue class initialized from the value.

Inequality

static

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

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

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

Parameters

Name	Type	Description
left	OpcValue	The first OpcValue to compare.
right	OpcValue	The second OpcValue 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 object is less than the second specified OpcValue object.

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

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

Parameters

Name	Type	Description
left	OpcValue	The first OpcValue object.
right	OpcValue	The second OpcValue 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 object is less than or equal to the second OpcValue object.

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

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

Parameters

Name	Type	Description
left	OpcValue	The first OpcValue object.
right	OpcValue	The second OpcValue 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).