XPView.Criteria Property

using DevExpress.Xpo;
using DevExpress.Data.Filtering;
// ...
class SampleTable : XPBaseObject {
    private int id;
    private string name;
    private int age;

    SampleTable(Session session) : base(session) {
        this.name = "John";
        this.age = 25;
    }

    [Key(true)]
    public int ID {
        get { return id; }
        set { SetPropertyValue<int>(nameof(ID), id, value); }
    }

    public string Name {
        get { return name; }
        set { SetPropertyValue<string>(nameof(Name), name, value); }
    }

    public int Age {
        get { return age; }
        set { SetPropertyValue<int>(nameof(Age), age, value); }
    }
}

// ...

xpView1.Criteria = CriteriaOperator.Parse("Age > 30", null);

Imports DevExpress.Xpo
Imports DevExpress.Data.Filtering
' ...
Class SampleTable
   Inherits XPBaseObject
   Private _id As Integer
   Private _name As String
   Private _age As Integer

   Public Sub New(ByVal _session As Session)
      MyBase.New(_session)
      Me._name = "John"
      Me._age = 25
   End Sub

   <Key(True)> _
   Public Property ID() As Integer
      Get
         Return _id
      End Get
      Set(ByVal Value As Integer)
         SetPropertyValue(Of Integer)(NameOf(FullName), _id, Value)
      End Set
   End Property

   Public Property Name() As String
      Get
         Return _name
      End Get
      Set(ByVal Value As String)
         SetPropertyValue(Of String)(NameOf(Name), _name, Value)
      End Set
   End Property

   Public Property Age() As Integer
      Get
         Return _age
      End Get
      Set(ByVal Value As Integer)
         SetPropertyValue(Of Integer)(NameOf(Age), _age, Value)
      End Set
   End Property
End Class

' ...

XpView1.Criteria = CriteriaOperator.Parse("Age > 30", Nothing)