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.NET Framework 4.5.2+

IObjectSpace.GetObjectByKey<ObjectType>(Object) Method

Returns a persistent object of the type designated by the specified generic type parameter, with the specified value for its key property.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v22.2.dll

NuGet Package: DevExpress.ExpressApp


ObjectType GetObjectByKey<ObjectType>(
    object key


Name Type Description
key Object

An object that represents the persistent object’s key property value.

Type Parameters



Type Description

A persistent object with the specified value for its key property.


When implementing the IObjectSpace interface in the BaseObjectSpace class’s descendant, don’t implement the GetObjectByKey<ObjectType> method. It’s implemented in the BaseObjectSpace class. The BaseObjectSpace.GetObjectByKey<ObjectType>(object key) method calls the BaseObjectSpace.GetObjectByKey(Type type, object key) method which returns null. The latter method is virtual. So, you should override it in your descendant.

To get the key property value, use the IObjectSpace.GetKeyValue method.

The following code snippets (auto-collected from DevExpress Examples) contain references to the GetObjectByKey<ObjectType>(Object) method.


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See Also