AF SDK Reference

PIPointClasses Class

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PIPointClasses Class

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Last UpdatedNov 18, 2025
5 minute read

The PIPointClasses collection represents the available PIPointClass objects on a particular PIServer.

Inheritance Hierarchy

SystemObject
OSIsoft.AF.PIPIPointClasses

Namespace: OSIsoft.AF.PI
Assembly: OSIsoft.AFSDK (in OSIsoft.AFSDK.dll) Version: 3.1.1.1182

Syntax

public sealed class PIPointClasses : IList<PIPointClass>, 
	ICollection<PIPointClass>, IEnumerable<PIPointClass>, IEnumerable, 
	IList, ICollection

Public NotInheritable Class PIPointClasses
	Implements IList(Of PIPointClass), ICollection(Of PIPointClass), 
	IEnumerable(Of PIPointClass), IEnumerable, IList, ICollection

Dim instance As PIPointClasses

public ref class PIPointClasses sealed : IList<PIPointClass^>, 
	ICollection<PIPointClass^>, IEnumerable<PIPointClass^>, IEnumerable, 
	IList, ICollection

[<SealedAttribute>]
type PIPointClasses =  
    class
        interface IList<PIPointClass>
        interface ICollection<PIPointClass>
        interface IEnumerable<PIPointClass>
        interface IEnumerable
        interface IList
        interface ICollection
    end

The PIPointClasses type exposes the following members.

Properties

	Name	Description
	Count	Gets the number of items actually contained in the collection.
	ItemInt32	Gets or sets the item at the specified index.
	ItemString	Returns the specified object from the collection by name.
	Server	The PIServer for this PIPointClasses collection.

Methods

	Name	Description
	Contains(String)	This method determines whether the collection contains a specific item referenced by name.
	Contains(PIPointClass)	This method determines whether the collection contains a specific item.
	CopyTo	Copies the entire collection to a compatible one-dimensional Array, starting at the specified index of the target array.
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	GetEnumerator	Returns an enumerator that iterates through the collection.
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IndexOf	Searches for the specified object and returns the zero-based index of the first occurrence within the entire collection.
	Refresh	Refresh the collection by loading from the PIServer.
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Extension Methods

	Name	Description
	ChunkedByPIPointClass	This extension method breaks up search results into chunks to make it easier to page through and process IEnumerableT collections in chunks. (Defined by AFSDKExtension.)

Remarks

This is the collection of available PIPointClass objects on a particular PIServer. The contained PIPointClass objects are used as templates when creating a new PIPoint specifying the attributes associated with the PIPoint.

Notes to Callers
This method, property, or class is not available in the legacy .NET 3.5 version of the SDK.

Examples

// Get the PIPointClasses from the PIServer on the local computer
PISystems myPISystems = new PISystems();
PISystem myPISystem = myPISystems.DefaultPISystem;
PIServer myPIServer = PIServer.FindPIServer(myPISystem, piServerName);


// Display information about each PIPointClass and its attributes
foreach (PIPointClass pointClass in myPIServer.PointClasses)
{
    Console.WriteLine("Name of the PIPointClass = {0}", pointClass.Name);
    IDictionary<string, object> attributes = pointClass.GetAttributes();
    foreach (var item in attributes)
    {
        Console.WriteLine("  Attribute '{0}' = '{1}'", item.Key, item.Value);
    }
}

' Get the PIPointClasses from the PIServer on the local computer
Dim myPISystems As New PISystems
Dim myPISystem As PISystem = myPISystems.DefaultPISystem
Dim myPIServer As PIServer = PIServer.FindPIServer(myPISystem, piServerName)

' Display information about each PIPointClass and its attributes
For Each pointClass As PIPointClass In myPIServer.PointClasses
    Console.WriteLine("Name of the PIPointClass = {0}", pointClass.Name)
    Dim attributes As IDictionary(Of String, Object) = pointClass.GetAttributes
    For Each item As KeyValuePair(Of String, Object) In attributes
        Console.WriteLine("  Attribute '{0}' = '{1}'", item.Key, item.Value)
    Next
Next

No code example is currently available or this language may not be supported.

AF SDK Reference