Creates a nested Object Space.
NuGet Package: DevExpress.ExpressApp
An IObjectSpace object that is a created nested Object Space.
Use this method to create a nested Object Space for the current Object Space. When committing the changes made within a nested Object Space, they are merged back into the parent Object Space. This allows treating several related operations as a single unified operation.
The creation of nested Object Spaces is not supported by the Entity Framework because it does not includes facilities like a nested Units of Work in XPO (see XPObjectSpace.CreateNestedObjectSpace).