Obtain the webpart of all sub-regions in the current region.

You can use either of the following methods to obtain information about all sub-regions in this region in certain areas of the Portal:
Directly reference this class: Microsoft. Sharepoint. Portal. webcontrols. baseareawebpart . This. currentareaid gets the guid of the current region. For details, refer to the SharePoint SDK.
Another method is:
// Get the guid of the current page through the pageinfo object
Pageinfo currentpage = pageinfo. getpageinfo ();
Guid areaguid = currentpage. categoryid;

// Combine the guid of pageinfo to obtain the current region. Is it easy? Haha!
Portalcontext = portalapplication. getcontext (areaguid );
Area currentarea = areamanager. getarea (portalcontext, areaguid );

// Present the subareas of the current region
Foreach (area onearea in currentarea. Areas)
{
Output. Write ("<a href = '" + onearea. urlnavigation + "'>" + onearea. Title + "</a> <br> ");
}