ASPxTreeListEditor.SelectionType Property
Returns the selection type supported by the ASPxTreeListEditor.
Namespace: DevExpress.ExpressApp.TreeListEditors.Web
Assembly: DevExpress.ExpressApp.TreeListEditors.Web.v18.2.dll
Declaration
Property Value
| Type | Description |
|---|---|
| SelectionType | A SelectionType enumeration value that represents the selection type supported by the current List Editor. |
Available values:
| Name | Description |
|---|---|
| None | A List Editor or a View does not support focusing an object nor selection of objects. |
| FocusedObject | A List Editor or a View supports focusing an object, but does not support selection of objects. |
| MultipleSelection | A List Editor or a View supports selection of single and multiple objects. |
| TemporarySelection | A List Editor or a View supports selection type, which is active only while a postback is processed. For instance, it can be active when a record displayed by an ASP.NET Web List editor is clicked. |
| Full | A List Editor or a View supports selection of single and multiple objects, as well as focusing an object. |
Remarks
The ASPxTreeListEditor supports selection of a single object as well as selection of multiple objects. So, the SelectionType property always returns SelectionType.MultipleSelection.
This property is used by XAF to determine what Actions to enable for a List View. Each Action has the ActionBase.SelectionDependencyType property that specifies whether an Action’s availability depends on the current selection. XAF determines what actions to enable for a List View by comparing the value of the Action’s SelectionDependencyType property with the List Editor‘s SelectionType property value. For instance, if an Action requires a selected object and the current List Editor does not support selection, the Action will not be available.