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IObjectSpace.GetKeyValue(Object) Method

expressappframework-devexpress-dot-expressapp-dot-iobjectspace-dot-getkeyvalue-x28-system-dot-object-x29.md

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IObjectSpace.GetKeyValue(Object) Method

Returns the key property’s value of the specified persistent object.

Namespace : DevExpress.ExpressApp

Assembly : DevExpress.ExpressApp.v25.2.dll

NuGet Package : DevExpress.ExpressApp

Declaration

csharp
object GetKeyValue(
    object obj
)
vb
Function GetKeyValue(
    obj As Object
) As Object

Parameters

NameTypeDescription
objObject

An object whose key property’s value is requested.

|

Returns

TypeDescription
Object

An object which is the value of the specified object’s key property.

|

Remarks

When implementing the IObjectSpace interface in the BaseObjectSpace class’s descendant, don’t implement the GetKeyValue method. It’s implemented in the BaseObjectSpace class.

The following code snippets (auto-collected from DevExpress Examples) contain references to the GetKeyValue(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.

xaf-how-to-implement-dependent-views-in-a-dashboardview-filter-based-on-selection/CS/EFCore/DependentDashboardEF/DependentDashboardEF.Module/Controllers/DashboardFilterController.cs#L22

csharp
foreach (object obj in masterListView.SelectedObjects) {
    searchedObjects.Add(detailListView.ObjectSpace.GetKeyValue(obj));
}

xaf-how-to-import-data-in-xaf/CS/XPO/ImportData/ImportData.Module/Controllers/ImportDataListViewController.cs#L59

csharp
PropertyCollectionSource pcs = targetListView.CollectionSource as PropertyCollectionSource;
object masterObject = pcs != null ? nestedImportObjectSpace.GetObjectByKey(pcs.MasterObjectType, nestedImportObjectSpace.GetKeyValue(pcs.MasterObject)) : null;
importDataDelegate(nestedImportObjectSpace, masterObject);

See Also

Oid

IObjectSpace Interface

IObjectSpace Members

DevExpress.ExpressApp Namespace