XpoDefault.Session Property

Gets or sets the default session.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v21.2.dll

Declaration

C#

public static Session Session { get; set; }

VB.NET

Public Shared Property Session As Session

Property Value

Type	Description
Session	A Session object that represents the default session which is used to load and save persistent objects.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the Session 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-use-the-containsoperator-for-objects-in-a-many-to-many-relationship-e988/CS/A2404/Form1.cs#L21

private void InitData() {
    if (null != XpoDefault.Session.FindObject<Role>(new BinaryOperator("RoleName", "Manager"))) return;
    string[] firstName = { "John", "Ben", "Mark", "William" };

XPO_how-to-get-a-list-of-a-persistent-objects-properties-e725/CS/Form1.cs#L91

XpoDefault.DataLayer = XpoDefault.GetDataLayer(conn, AutoCreateOption.SchemaAlreadyExists);
XpoDefault.Session.Dictionary.CollectClassInfos(typeof(Customer).Assembly);
Application.Run(new Form1());

XPO_how-to-load-unique-distinct-data-via-xpo-e1001/CS/Distinct/Form1.cs#L156

private void LoadViaXPView(object sender, EventArgs e) {
    XPView xpView1 = new XPView(XpoDefault.Session, typeof(Northwind.Order));
    xpView1.Properties.Add(new DevExpress.Xpo.ViewProperty("Company Name", DevExpress.Xpo.SortDirection.None, "[Customer.CompanyName]", true, true));

Reporting_how-to-save-and-restore-reports-using-xpcollection-as-a-data-source-e1747/CS/XPOReport/Program.cs#L23

    XpoDefault.DataLayer = XpoDefault.GetDataLayer(cstr, AutoCreateOption.DatabaseAndSchema);
    DevExpress.Xpo.XpoDefault.Session = null;
}

XPO_tutorial-1-your-first-data-aware-application-with-xpo-e4555/CS/XpoTutorial1/MyDataModelCode/ConnectionHelper.cs#L17

    XpoDefault.DataLayer = XpoDefault.GetDataLayer(ConnectionString, autoCreateOption);
    XpoDefault.Session = null;
}

VB.NET

XPO_how-to-use-the-containsoperator-for-objects-in-a-many-to-many-relationship-e988/VB/A2404/Form1.vb#L23

Private Sub InitData()
    If Nothing IsNot XpoDefault.Session.FindObject(Of Role)(New BinaryOperator("RoleName", "Manager")) Then
        Return

XPO_how-to-get-a-list-of-a-persistent-objects-properties-e725/VB/Form1.vb#L91

XpoDefault.DataLayer = XpoDefault.GetDataLayer(conn, AutoCreateOption.SchemaAlreadyExists)
XpoDefault.Session.Dictionary.CollectClassInfos(GetType(Customer).Assembly)
Application.Run(New Form1())

XPO_how-to-load-unique-distinct-data-via-xpo-e1001/VB/Distinct/Form1.vb#L151

Private Sub LoadViaXPView(ByVal sender As Object, ByVal e As EventArgs) Handles XPView.Click
    Dim xpView1 As New XPView(XpoDefault.Session, GetType(Northwind.Order))
    xpView1.Properties.Add(New DevExpress.Xpo.ViewProperty("Company Name", DevExpress.Xpo.SortDirection.None, "[Customer.CompanyName]", True, True))

Reporting_how-to-save-and-restore-reports-using-xpcollection-as-a-data-source-e1747/VB/XPOReport/Program.vb#L27

    XpoDefault.DataLayer = XpoDefault.GetDataLayer([cstr], AutoCreateOption.DatabaseAndSchema)
    DevExpress.Xpo.XpoDefault.Session = Nothing
End Sub

XPO_tutorial-1-your-first-data-aware-application-with-xpo-e4555/VB/XpoTutorial1/MyDataModelCode/ConnectionHelper.vb#L17

    XpoDefault.DataLayer = XpoDefault.GetDataLayer(ConnectionString, autoCreateOption)
    XpoDefault.Session = Nothing
End Sub