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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.v19.2.dll

Declaration

ObjectType GetObjectByKey<ObjectType>(
    object key
)
Function GetObjectByKey(Of ObjectType)(
    key As Object
) As ObjectType
ObjectType GetObjectByKey<ObjectType>(
    object key
)
Function GetObjectByKey(Of ObjectType)(
    key As Object
) As ObjectType
ObjectType GetObjectByKey<ObjectType>(
    object key
)
Function GetObjectByKey(Of ObjectType)(
    key As Object
) As ObjectType

Parameters

Name Type Description
key Object

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

Parameters

Name Type Description
key Object

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

Parameters

Name Type Description
key Object

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

Returns

Type Description
ObjectType

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

Returns

Type Description
ObjectType

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

Returns

Type Description
ObjectType

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

Type Parameters

Name Description
ObjectType

Type Parameters

Name Description
ObjectType

Type Parameters

Name Description
ObjectType

Remarks

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.

See Also