XPCollection<T> Class

A generic type collection of persistent objects.

Assembly: DevExpress.Xpo.v24.1.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo

Declaration

C#
VB.NET

public class XPCollection<T> :
    XPBaseCollection,
    IList<T>,
    ICollection<T>,
    IEnumerable<T>,
    IEnumerable

Public Class XPCollection(Of T)
    Inherits XPBaseCollection
    Implements IList(Of T),
               ICollection(Of T),
               IEnumerable(Of T),
               IEnumerable

Type Parameters

Name	Description
T	The type of elements in the collection.

Remarks

The XPCollection<T> class is a collection of persistent objects, much like the XPCollection. The only difference is that the XPCollection<T> is a generic type collection, which contains persistent objects as specified by T, and as a result, the collection cannot be used as a data source at design time.

Example:

C#
VB.NET

XPCollection<Person> persons = new XPCollection<Person>(session1, 
    CriteriaOperator.Parse("FirstName = 'John'"));

Dim persons As New XPCollection(Of Person)(session1, _
CriteriaOperator.Parse("FirstName = 'John'"))

As with the XPCollection, the XPCollection<T> is used to query data stores for specific objects and to represent the “many” end of object associations.