ObjectQuery<T>::Include Method (String^)
Specifies the related objects to include in the query results.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
Parameters
- path
-
Type:
System::String^
Dot-separated list of related objects to return in the query results.
Return Value
Type: System.Data.Objects::ObjectQuery<T>^A new ObjectQuery<T> with the defined query path.
| Exception | Condition |
|---|---|
| ArgumentNullException | path is null. |
| ArgumentException | path is empty. |
Query paths can be used with Entity SQL and LINQ queries.
Paths are all-inclusive. For example, if an include call indicates Include("Orders.OrderLines"), not only will OrderLines be included, but also Orders. For more information, see Loading Related Objects.
When you call the Include method, the query path is only valid on the returned instance of the ObjectQuery<T>. Other instances of ObjectQuery<T> and the object context itself are not affected.
Because the Include method returns the query object, you can call this method multiple times on an ObjectQuery<T> to specify multiple paths for the query, as in the following example:
Available since 3.5