IObjectSpace.GetObjectByKey(Type, Object) Method

Returns the persistent object that has the specified value for its key property.

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v24.2.dll

NuGet Package: DevExpress.ExpressApp

Declaration

C#

object GetObjectByKey(
    Type type,
    object key
)

VB.NET

Function GetObjectByKey(
    type As Type,
    key As Object
) As Object

Parameters

Name	Type	Description
type	Type	A Type object which is the type of objects to search for.
key	Object	An object that is the persistent object’s key property value.

Returns

Type	Description
Object	An object which represents the persistent object with the specified value for its key property.

Remarks

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

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

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GetObjectByKey(Type, Object) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

xaf-how-to-display-a-collection-property-as-a-checked-list-box/CS/DXExample.Module.Web/WebCheckedListBoxPropertyEditor.cs#L59

foreach (ListEditItem item in control.Items) {
    object obj = objectSpace.GetObjectByKey(MemberInfo.ListElementTypeInfo.Type, item.Value);
    if (item.Selected) {

VB.NET

xaf-how-to-display-a-collection-property-as-a-checked-list-box/VB/DXExample.Module.Web/WebCheckedListBoxPropertyEditor.vb#L58

For Each item As ListEditItem In control.Items
    Dim obj As Object = objectSpace.GetObjectByKey(MemberInfo.ListElementTypeInfo.Type, item.Value)
    If item.Selected Then