Session.GetObjectByKey(Type, Object, Boolean) Method
Returns the reloaded persistent object with the specified value of the key property from a data store.
A Type object which represents the type of objects to search for.
An object which represents the key property’s value of the persistent object.
true, to reload the persistent object from storage if it is found in memory; otherwise, false.
An object which represents the persistent object with the specified value of the key property. Null if no objects are found.
Below is an example of using the GetObjectByKey method. Here, session is the Session instance.
using DevExpress.Xpo; // ... Person personToDelete = (Person)session.GetObjectByKey(typeof(Person), 152, true); personToDelete.Delete();
Firstly, the GetObjectByKey method searches the memory for the object with the specified value of the key property. If such an object is found, it is not reloaded. To get the up-to-date object from the data store the alwaysGetFromDb parameter must be set to true.
The GetObjectByKey method does not find objects until they are saved to a data store.