DataSourceBase.CreateObjectSpace(Type, IServiceProvider) Method

Creates an Object Space.

Namespace: DevExpress.Persistent.Base.ReportsV2

Assembly: DevExpress.Persistent.Base.v23.2.dll

NuGet Package: DevExpress.Persistent.Base

Declaration

C#

public static IObjectSpace CreateObjectSpace(
    Type dataType,
    IServiceProvider serviceProvider
)

VB.NET

Public Shared Function CreateObjectSpace(
    dataType As Type,
    serviceProvider As IServiceProvider
) As IObjectSpace

Parameters

Name	Type	Description
dataType	Type	A Type object that specifies the business object type for which the Object Space is retrieved.
serviceProvider	IServiceProvider	An IServiceProvider object.

Returns

Type	Description
IObjectSpace	An IObjectSpace object.

Remarks

To access data in an XAF application, you do not need to use an ORM-specific context or query data from the database directly. Instead of these techniques, use an Object Space’s methods (see Data Manipulation and Business Logic).

The CreateObjectSpace static method allows you to access an Object Space in report scripts:

C#

private void report_BeforePrint(object sender, System.Drawing.Printing.PrintEventArgs e) {
    DevExpress.ExpressApp.IObjectSpace objectSpace = 
        DevExpress.Persistent.Base.ReportsV2.DataSourceBase.CreateObjectSpace(typeof(MyObject), (DevExpress.XtraReports.UI.XtraReport)sender);
}

VB.NET

Private Sub report_BeforePrint(ByVal sender As Object, ByVal e As System.Drawing.Printing.PrintEventArgs)
    Dim objectSpace As DevExpress.ExpressApp.IObjectSpace = _
    DevExpress.Persistent.Base.ReportsV2.DataSourceBase.CreateObjectSpace( _
    GetType(MyObject), CType(sender, DevExpress.XtraReports.UI.XtraReport))
End Sub
End Sub