Etv Library is a complete component pack for rapid development of professional database applications in Delphi. Etv Library contains powerful lookup components with: a display of several fields, filters, trees and multi-levelness, advanced search, list sorting, direct editing, saving lookup information, list header, font choice, and automatic choice of input column. The components include: a grid with powerful lookup and list fields, multiline headers, totals, cloning, print, changing fields visibility and cloning of records\; a query and filter builder which defines end-user queries, allows auto substitution of a dataset, supports sorting datasets, and supports a search of records\; components for little fixed lists\; an edit forms calling mechanism and base database form\; popup menus for design and run time\; and support for editing dataset data in design-time.