Type Properties in XPO

• Nov 11, 2022

The example below illustrates how to implement Type Properties in an XPO persistent class.

C#

using System.ComponentModel;
using DevExpress.Xpo;
using DevExpress.ExpressApp.Utils;
// ...
[ValueConverter(typeof(TypeToStringConverter))]
[TypeConverter(typeof(LocalizedClassInfoTypeConverter))]
[Size(SizeAttribute.Unlimited)]
public Type DataType {
    get { return GetPropertyValue<Type>(nameof(DataType)); }
    set { SetPropertyValue<Type>(nameof(DataType), value); }
}

VB.NET

Imports System.ComponentModel
Imports DevExpress.Xpo
Imports DevExpress.ExpressApp.Utils
' ...
<ValueConverter(GetType(TypeToStringConverter)), _
TypeConverter(GetType(LocalizedClassInfoTypeConverter)), _
Size(SizeAttribute.Unlimited)> _
Public Property DataType() As Type
    Get
        Return GetPropertyValue(Of Type)(NameOf(DataType))
    End Get
    Set(ByVal value As Type)
        SetPropertyValue(Of Type)(NameOf(DataType), value)
    End Set
End Property