Session.Dictionary Property

Gets metadata on persistent objects in a data store.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v24.1.dll

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

NuGet Package: DevExpress.Xpo

Declaration

C#

[Browsable(false)]
public virtual XPDictionary Dictionary { get; }

VB.NET

<Browsable(False)>
Public Overridable ReadOnly Property Dictionary As XPDictionary

Property Value

Type	Description
XPDictionary	An XPDictionary object which provides metadata on persistent objects in a data store.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Dictionary property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XPO_how-to-persist-metadata-e269/CS/Program.cs#L79

    XPCollection<PersistentClassInfo> classes = new XPCollection<PersistentClassInfo>(metadataSession);
    PersistentClassInfo.FillDictionary(dataSession.Dictionary, classes);
}

XPO_how-to-create-an-xpclassinfo-descendant-to-dynamically-build-a-persistent-class-structure-e1729/CS/DynamicDataTable/Form1.cs#L45

if (!dynamicClasses.TryGetValue(tableName, out dataTableClassInfo)) {
    dynamicClasses.Add(tableName, new DynamicDataTableClassInfo(workSession.Dictionary, dataTable));
}

XPO_how-to-generate-persistent-metadata-for-an-arbitrary-data-table-e2922/CS/MapArbitraryDatabaseExample/Form1.cs#L22

    DBTable[] tables = provider.GetStorageTables("Product");
    gridControl2.DataSource = new XPCollection(session1, Program.AddClass(session1.Dictionary, tables[0]));
}

XPO_how-to-reuse-xaf-audit-trail-module-functionality-in-a-non-xaf-winforms-application-e2274/CS/WinExample/Form1.cs#L25

session1.Dictionary.GetDataStoreSchema(typeof(PersistentObject1).Assembly);
AuditTrailService.GetService(null).SetXPDictionary(session1.Dictionary);
AuditTrailService.GetService(null).AuditDataStore = new AuditDataStore<AuditDataItemPersistent, AuditedObjectWeakReference>();

XPO_how-to-bind-data-to-winforms-controls-using-xpbindingsource/CS/DXApplication/Form1.cs#L75

CategoryListSource.DataSource = UnitOfWork.Query<Categories>().OrderBy(t => t.CategoryName).ToList();
CategoryListSource.Dictionary = UnitOfWork.Dictionary;
SupplierListSource.DataSource = new XPCollection<Suppliers>(UnitOfWork, null, new SortProperty("CompanyName", SortingDirection.Ascending));

VB.NET

XPO_how-to-persist-metadata-e269/VB/Program.vb#L83

    Dim classes As New XPCollection(Of PersistentClassInfo)(metadataSession)
    PersistentClassInfo.FillDictionary(dataSession.Dictionary, classes)
End Using

XPO_how-to-create-an-xpclassinfo-descendant-to-dynamically-build-a-persistent-class-structure-e1729/VB/DynamicDataTable/Form1.vb#L47

If Not dynamicClasses.TryGetValue(tableName, dataTableClassInfo) Then
    dynamicClasses.Add(tableName, New DynamicDataTableClassInfo(workSession.Dictionary, dataTable))
End If

XPO_how-to-bind-data-to-winforms-controls-using-xpbindingsource/VB/DXApplication/Form1.vb#L61

CategoryListSource.DataSource = UnitOfWork.Query(Of Categories)().OrderBy(Function(t) t.CategoryName).ToList()
CategoryListSource.Dictionary = UnitOfWork.Dictionary
SupplierListSource.DataSource = New XPCollection(Of Suppliers)(UnitOfWork, Nothing, New SortProperty("CompanyName", SortingDirection.Ascending))