IObjectSpace.GetKeyValue(Object) Method

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

Namespace: DevExpress.ExpressApp

Assembly: DevExpress.ExpressApp.v22.1.dll

Declaration

C#

object GetKeyValue(
    object obj
)

VB.NET

Function GetKeyValue(
    obj As Object
) As Object

Parameters

Name	Type	Description
obj	Object	An object whose key property’s value is requested.

Returns

Type	Description
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.

Related GitHub Examples

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.

C#

XAF_categorizedlisteditor-how-to-show-subcategory-items-when-a-parent-category-is-selected-e1415/CS/WinSample.Module.Win/MyCategorizedListEditor.cs#L66

private object GetCategoryKey(object category) {
    return CategoriesListView.ObjectSpace.GetKeyValue(category);
}

XAF_how-to-represent-a-collection-property-using-a-checked-list-box-e1807/CS/DXExample.Module.Web/WebCheckedListBoxPropertyEditor.cs#L50

foreach (object obj in checkedItems) {
    control.Items.FindByValue(objectSpace.GetKeyValue(obj)).Selected = true;
}

XAF_how-to-implement-dependent-views-in-a-dashboardview-filter-based-on-selection-e4916/CS/Solution3.Module/Controllers/DashboardFilterController.cs#L22

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

VB.NET

XAF_categorizedlisteditor-how-to-show-subcategory-items-when-a-parent-category-is-selected-e1415/VB/WinSample.Module.Win/MyCategorizedListEditor.vb#L70

Private Function GetCategoryKey(ByVal category As Object) As Object
    Return CategoriesListView.ObjectSpace.GetKeyValue(category)
End Function

XAF_how-to-represent-a-collection-property-using-a-checked-list-box-e1807/VB/DXExample.Module.Web/WebCheckedListBoxPropertyEditor.vb#L50

For Each obj As Object In checkedItems
    control.Items.FindByValue(objectSpace.GetKeyValue(obj)).Selected = True
Next obj

XAF_how-to-implement-dependent-views-in-a-dashboardview-filter-based-on-selection-e4916/VB/Solution3.Module/Controllers/DashboardFilterController.vb#L24

For Each obj As Object In masterListView.SelectedObjects
    searchedObjects.Add(detailListView.ObjectSpace.GetKeyValue(obj))
Next obj