EFObjectSpace.Contains(Object) Method

Indicates whether a specified object belongs to the current Object Space.

Namespace: DevExpress.ExpressApp.EF

Assembly: DevExpress.ExpressApp.EF.v18.1.dll

Declaration

public override bool Contains(
    object obj
)
Public Overrides Function Contains(
    obj As Object
) As Boolean

Parameters

Type Name Description
Object obj

A persistent object to be tested.

Returns

Type Description
Boolean

true if the specified persistent object belongs to the current Object Space; otherwise, false.

Persistent objects that you process can belong to different Object Spaces. For instance, one object can be from a Detail View's Object Space, another from the invoked pop-up Window's Object Space. Use the Contains method before changing a certain object in a certain Object Space. If you use the wrong Object Space, an exception will be raised.

This method returns true for all non-persistent types.

See Also