ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Core Namespace / IProjectWindow Interface / SelectItemAsync Method
The Item to select or unselect
Select or unselect the item
True to expand the parent container to show the selection
Optionally specify the parent container you want to find the Item in
Example Version

SelectItemAsync Method
Select an Item
Syntax
Task SelectItemAsync( 
   Item Item,
   bool select,
   bool expand,
   Item container
)

Parameters

Item
The Item to select or unselect
select
Select or unselect the item
expand
True to expand the parent container to show the selection
container
Optionally specify the parent container you want to find the Item in
Example
Select an item in the Catalog pane
//Get the catalog pane
ArcGIS.Desktop.Core.IProjectWindow projectWindow = Project.GetCatalogPane();
//or get the active catalog view...
//ArcGIS.Desktop.Core.IProjectWindow projectWindow = Project.GetActiveCatalogWindow();

//eg Find a toolbox in the project
string gpName = "Interacting with Maps.tbx";
var toolbox = Project.Current.GetItems<GeoprocessingProjectItem>().FirstOrDefault(tbx => tbx.Name == gpName);
//Select it under Toolboxes
projectWindow.SelectItemAsync(toolbox, true, true, null);//null selects it in the first container - optionally await
                                                         //Note: Project.Current.GetProjectItemContainer("GP") would get toolbox container...

//assume toolbox is also under Folders container. Select it under Folders instead of Toolboxes
var foldersContainer = Project.Current.ProjectItemContainers.First(c => c.Path == "FolderConnection");
//We must specify the container because Folders comes second (after Toolboxes)
projectWindow.SelectItemAsync(toolbox, true, true, foldersContainer);//optionally await

//Find a map and select it
var mapItem = Project.Current.GetItems<MapProjectItem>().FirstOrDefault(m => m.Name == "Map");
//Map only occurs under "Maps" so the container need not be specified
projectWindow.SelectItemAsync(mapItem, true, false, null);
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also