Sharepoint Selector Controls for custom administration pages

Sharepoint comes with four selector controls to choose destination elements for the operations.  These controls can be used in custom administration pages.  You can locate this controls under Microsoft.SharePoint.WebControls namespace.  To add selector controls you have include following page directive:

WebApplicationSelector

WebApplicationSelector control allow user to get or set the web application.

SiteAdministrationSelector

SiteAdministrationSelector control allow user to get or set the site collection.

WebAdministrationSelector

WebAdministartionSelector allow user to gets or sets the Web.  The web selector requires that SiteSelector not be a null reference.  So you have to use SiteAdministartionSelector to use this control.

ListAdministrationSelector

ListAdministrationSelector allow user to get or set the List or Document Library.  The List selector requires WebAdministartionSelector.  So if you want to use list selector then you have to use WebAdministartionSelector as well as SiteAdministrationSelector.

To get the selected values from above controls use CurrentItem property: