Item Property (PIConstants collection)

                    

 

The PIConstants collection Item property, given a name returns the corresponding PIConstant collection that contains the requested set of PI-SDK enumerations.

 

Syntax

object.Item Index

The Item property syntax has these parts:

Part

Description

object

An object expression that evaluates to a PIConstants collection.

Index

A string containing the name of the desired PIConstant collection.  See Settings below.  

 

 Remarks

The Item property is the default property of the collection. An application would typically use the PIConstants collection when it needs to display a list of available options from a PI-SDK enumeration as selectable strings.

 

Settings

The possible settings for the Index are:

 

Setting

Description

ArchiveSummariesTypeConstants Type of summary operation to perform on values

ArchiveSummaryTypeConstants

Type of summary operation to perform on values

AttributeTypeConstants

Types of attributes - editable, aliased, built-in, ...

BoundaryTypeConstants

How to handle boundary conditions

CalculationBasisConstants Way of evaluating time basis of events in a calculation

CommonAttributeConstants

Names of standard point attributes

ConditionalConstants

Relational operators

ContainsConstants

Description of desired contents - all, some, etc.

DataMergeConstants

Handling of consecutive identical values

DataRemovalConstants

Handling of removal of events with the same timestamp

DirectionConstants

Direction to proceed

DuplicateConstants

Handling of duplicates

EventActionConstants The action an event from an eventpipe represents
EventPipeTypeConstants The type (source) of an EventPipe
FilterSampleTypeConstants Filter expression evaluation sampling method

FilteredViewConstants

Handling return of filtered values

MDBBDBSecConstants

Security attribute constants ("Owner", "Group", "Access", "Security") for batch and module databases as well as PIModules

MergeConstants

How to merge sets - handling of duplicates.

ModuleBatchDBAttributeConstants

Names of standard Module and Batch database attributes

OverflowCauseConstants

Reason for event pipe overflow

PIGRCConstants PIGlobalRestorer contexts

PointSearchTypeConstants

Which servers to search for points

PointTypeConstants

Type of PIPoints - float32, string, digital

RetrievalTypeConstants

Desired retrieval type

SampleTypeConstants

Sampling type - discrete, continuous.

SortOrderConstants

Desired sort order

TestConnectionConstants

Type of connection test

TimeStatusConstants Status of a time value

 

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