System.Design 2.0.0.0 System.Web.UI.Design.UrlEditor To be added. Provides a dialog box for selecting files to edit at design time. Constructor 2.0.0.0 To be added. Initializes a new instance of the class. Property 2.0.0.0 System.String To be added. To be added. Gets the caption for the dialog box. Property 2.0.0.0 System.String To be added. To be added. Gets the file name filter string used to determine the items that appear in the file list of the dialog box.