Session.PreFetch(IEnumerable, XPMemberInfo, IEnumerable) Method
Enforces loading data for an associated collection.
Namespace: DevExpress.Xpo
Assembly: DevExpress.Xpo.v18.2.dll
Declaration
public void PreFetch(
IEnumerable objects,
XPMemberInfo collectionInObjects,
IEnumerable collectionsContent
)
Parameters
Name | Type | Description |
---|---|---|
objects | IEnumerable | An IEnumerable list of parent objects. |
collectionInObjects | XPMemberInfo | An XPMemberInfo object that provides metadata information for an associated collection. |
collectionsContent | IEnumerable | IEnumerable list of the collection’s content. If a certain part of the collectionInObjects data was previously loaded, you can avoid reloading it by passing the loaded data to the collectionsContent parameter. |
Remarks
By default, data is loaded automatically when you access a nested collection for the first time. When the PreFetch method is called, all data for the specified collection is loaded at once. No additional SQL queries for this data will be performed later.
See Also