Компонент для работы с DBF таблицами и с Clipper индексами NTX

Автор: Влад Карпов

Уважаемые жители Королевства, вашему вниманию предлагается

• Версия 1.0.5 beta (24.10.02)
• Для Delphi 5

Описание

• 1) Add Method TranslateBuff and rewrite methods CreateBlobStream and SaveToDBT with TranslateBuff to prevent 'Access violation' in read and write CLOB.
• 2) When set RecNo check Filter, SetDeleted and Range validation.
• 3) Fix bud in TVKNTXRange.InRange(S: String) method
• 4) Add event OnCreateIndex
• 5) Add public var FullLengthCharFieldCopy to TVKSmartDBF for manage SetFieldData for 'C' type fields
• 6) Fix buf with allocate memory for FLocateBuffer (AV when Locate, Lookup, ReindexAll, DBEval or Pack if BufferSize <> 4096)
• 7) Complex actions to make index compatibility with CLIPPER:
  • - Full rewrite TVKNTXIndex.DeleteKey procedure, now it normalize index like a CLIPPER.
  • - Make TVKNTXIndex.DeleteKeyStyle property to switch Delete Key style between CLIPPER normalize index and all athers (Apollo, Halcyon...).
  • - Add TVKNTXCompactIndex.NormalizeRest method to make normalize index in TVKNTXIndex.CreateCompactIndex and TVKNTXIndex.SubNtx procedures.
  ATTENTION: Rebuild all indexes after apply this version !
• 8) Add methods: TVKNTXIndex.FindKey
  TVKNTXIndex.FindKeyFields with overloaded some parameters
  It is the same SeekFirst..., but subject to SetDeleted, Filter and Range.
  Partual key sapport Ok!
• 9) Rewrite Lokate and Lookup on TVKNTXIndex.FindKeyFields.
• 10) Add methods:
  • TVKSmartDBF.SetKey;
  • TVKSmartDBF.EditKey;
  • TVKSmartDBF.GotoKey;
  • TVKSmartDBF.GotoNearest;
  • TVKSmartDBF.DropEditKey;
  • TVKSmartDBF.FindKey;
  • TVKSmartDBF.FindNearest;
  All this methods work throw TVKNTXIndex.FindKeyFields.
• 11) Add TVKSmartDBF.IndexName property.
• 12) Make type 'C' is not be NULL, if field empty Field.AsString return string of spases lethgt of field length.