TClientDataSet.UpdateStatus: TUpdateStatus; TUpdateStatus = (usUnmodified, usModified, usInserted, usDeleted); 测试图: 相关代码: uses TypInfo; procedure TForm1.ClientDataSet1CalcFields(DataSet: TDataSet); begin ClientDataSet1.FieldByName('UpdateStatus').AsString := GetEnumName(TypeInfo(TUpdateStatus), Ord(ClientDataSet1.UpdateStatus)); end; procedure TForm1.Button1Click(Sender: TObject); begin ClientDataSet1.MergeChangeLog; end; procedure TForm1.Button2Click(Sender: TObject); begin ClientDataSet1.Delete; end; procedure TForm1.Button3Click(Sender: TObject); begin ClientDataSet1.UndoLastChange(True); end; |
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