Reference

OpcValueRange Members

Type

OpcValueRange

Namespace

Opc.UaFx

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Also in

Opc.UaFx.Client

Constructors

OpcValueRange

3 overloads

Overload	Description
OpcValueRange()	Initializes a new instance of the OpcValueRange class.
OpcValueRange(double)	Initializes a new instance of the OpcValueRange class using the high limit specified with the lower limit equals to zero.
OpcValueRange(double, double)	Initializes a new instance of the OpcValueRange class using the high and low limit specified.

OpcValueRange()

Initializes a new instance of the OpcValueRange class.

public OpcValueRange()

Public Sub New()

Remarks

An instance created using this constructor results into a range with the lower and upper limit equals to zero.

OpcValueRange(double)

Initializes a new instance of the OpcValueRange class using the high limit specified with the lower limit equals to zero.

public OpcValueRange(double high)

Public Sub New(high As Double)

Parameters

Name	Type	Description
high	Double	The upper limit of a value.

Remarks

If high is less then zero, the High limit will become zero and the Low limit will define the value specified by high.

OpcValueRange(double, double)

Initializes a new instance of the OpcValueRange class using the high and low limit specified.

public OpcValueRange(double high, double low)

Public Sub New(high As Double, low As Double)

Parameters

Name	Type	Description
high	Double	The upper limit of a value.
low	Double	The lower limit of a value.

Remarks

If high is less than low then High will have the value of low and Low will have the value of high.

Properties

High

Gets or sets the highest value in the range.

public double High { get; set; }

Public Property High As Double

Property value

Double

The highest value in the range representing the upper limit.

Low

Gets or sets the lowest value in the range.

public double Low { get; set; }

Public Property Low As Double

Property value

Double

The lowest value in the range representing the lower limit.

Magnitude

Gets the mathematical distance between Low and High.

public double Magnitude { get; }

Public ReadOnly Property Magnitude As Double

Property value

Double

The mathematical distance determined by the absolute difference between Low and High.

Methods

Of

static · 4 overloads · since v2.10

Overload	Description
Of<T>()static · since v2.10	Determines the according OpcValueRange of the type specified by T.
Of(Type)static · since v2.10	Determines the according OpcValueRange of the type specified by type.
Of(OpcDataType)static · since v2.10	Determines the according OpcValueRange of the type specified by type.
Of(OpcNodeId)static · since v2.10	Determines the according OpcValueRange of the type identified by the specified typeId.

Of<T>()

static · since v2.10

Determines the according OpcValueRange of the type specified by T.

public static OpcValueRange Of<T>()

Public Shared Function [Of](Of T)() As OpcValueRange

Type parameters

Name	Description
T	The type which is reflected to look up a 'MinValue' and a 'MaxValue' field to determine the Low and High values of the OpcValueRange to determine.

Returns

OpcValueRange

The OpcValueRange with the according 'MinValue' for Low and the 'MaxValue' for High or a null reference (Nothing in Visual Basic) if the type specified does not provide a 'MinValue' and 'MaxValue' field.

Remarks

To determine the according OpcValueRange 'MinValue' and 'MaxValue' are required as static fields which offer IConvertible values.

Of(Type)

static · since v2.10

Determines the according OpcValueRange of the type specified by type.

public static OpcValueRange Of(Type type)

Public Shared Function [Of](type As Type) As OpcValueRange

Parameters

Name	Type	Description
type	Type	The Type which is reflected to look up a 'MinValue' and a 'MaxValue' field to determine the Low and High values of the OpcValueRange to determine.

Returns

OpcValueRange

The OpcValueRange with the according 'MinValue' for Low and the 'MaxValue' for High or a null reference (Nothing in Visual Basic) if the type specified does not provide a 'MinValue' and 'MaxValue' field or if type is a null reference (Nothing in Visual Basic).

Remarks

To determine the according OpcValueRange 'MinValue' and 'MaxValue' are required as static fields which offer IConvertible values.

Of(OpcDataType)

static · since v2.10

Determines the according OpcValueRange of the type specified by type.

public static OpcValueRange Of(OpcDataType type)

Public Shared Function [Of](type As OpcDataType) As OpcValueRange

Parameters

Name	Type	Description
type	OpcDataType	One of the members defined by the OpcDataType enumeration its underlying Type is reflected to look up a 'MinValue' and a 'MaxValue' property to determine the Low and High values of the OpcValueRange to determine.

Returns

OpcValueRange

The OpcValueRange with the according 'MinValue' for Low and the 'MaxValue' for High or a null reference (Nothing in Visual Basic) if the according Type of the type specified does not provide a 'MinValue' and 'MaxValue' field.

Remarks

To determine the according OpcValueRange 'MinValue' and 'MaxValue' are required as static fields which offer IConvertible values.

Of(OpcNodeId)

static · since v2.10

Determines the according OpcValueRange of the type identified by the specified typeId.

public static OpcValueRange Of(OpcNodeId typeId)

Public Shared Function [Of](typeId As OpcNodeId) As OpcValueRange

Parameters

Name	Type	Description
typeId	OpcNodeId	The OpcNodeId which identifies the OpcDataTypeInfo its underlying Type is reflected to look up a 'MinValue' and a 'MaxValue' field to determine the Low and High values of the OpcValueRange to determine.

Returns

OpcValueRange

The OpcValueRange with the according 'MinValue' for Low and the 'MaxValue' for High or a null reference (Nothing in Visual Basic) if the according Type identified by the typeId specified does not provide a 'MinValue' and 'MaxValue' field or typeId is a null reference (Nothing in Visual Basic) or is a null identifier (see IsNull).

Remarks

To determine the according OpcValueRange 'MinValue' and 'MaxValue' are required as static fields which offer IConvertible values.

ToString

override

Returns a string that represents the current OpcValueRange.

public override string ToString()

Public Overrides Function ToString() As String

Returns

String

A string that represents the current OpcValueRange including the used Low and High limits of the range represented.

Overrides

ToString()

Operators

Explicit

static

Converts a OpcValueRange to an Range object.

public static explicit operator Range(OpcValueRange value)

Public Shared Narrowing Operator CType(value As OpcValueRange) As Range

Parameters

Name	Type	Description
value	OpcValueRange	A OpcValueRange that represents the engineering unit information.

Returns

Range

An instance of the Range class initialized from the value.

Implicit

static

Converts a Range to an OpcValueRange object.

public static implicit operator OpcValueRange(Range value)

Public Shared Widening Operator CType(value As Range) As OpcValueRange

Parameters

Name	Type	Description
value	Range	A Range that represents the engineering unit information.

Returns

OpcValueRange

An instance of the OpcValueRange class initialized from the value.