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TXLSTable / TXLSTables classes

单元:lxHandle

BIFF8 (.xls) 表(Excel ListObjects)。表把一个命名的结构化引用区域连同内置样式和内嵌自动筛选附加到矩形范围。该集合位于 TXLSWorksheet.Tables; use AddTable as the most common entry point. The shape mirrors TXLSXTable / TXLSXTables (XLSX 侧也有对应方法),因此向工作簿添加表的代码可以与格式无关。v2.33.0 起可用

Declaration

type
  TXLSTable = class
    constructor Create;
    procedure Assign(Source: TXLSTable);
    property Id: Integer;                  // assigned by SaveAs (1..N per sheet)
    property Name: WideString;
    property DisplayName: WideString;
    property Range: WideString;             // e.g. "A1:F9"
    property Columns: TStringList;          // header text per column
    property StyleName: WideString;         // default 'TableStyleMedium2'
    property ShowFirstColumn: Boolean;      // default False
    property ShowLastColumn: Boolean;       // default False
    property ShowRowStripes: Boolean;       // default True
    property ShowColumnStripes: Boolean;    // default False
    property TotalsRowShown: Boolean;       // default False
  end;

  TXLSTables = class
    function Add: TXLSTable; overload;
    function Add(const AName, ARange: WideString;
      AColumns: TStrings): Integer; overload;
    procedure Delete(Index: Integer);
    procedure Clear;
    property Count: Integer;
    property Items[Index: Integer]: TXLSTable; default;
  end;

Worksheet shortcut

TXLSWorksheet exposes AddTable(AName, ARange, AColumns) which forwards to Tables.Add and returns the new table object so you can refine its StyleName or banded-row flags before save

Save-time behavior

On BIFF8 SaveAs(xlExcel97),工作表会发出一个 FEATHEADR11 ($0871) 表特性头,然后每个表发出一个 FEAT11 ($0872) TableFeatureType 负载,外加工作表 EOF 之前、工作表保护之后的一个 LIST12 ($0877) 样式记录。从 v2.87.4 起,LIST12 样式记录使用 MS-XLS List12TableStyleClientInfo layout, including the banded row / column flags and the style name as an XLUnicodeString HotXLS 不再为表元数据发出遗留的 FEATHEADR ($0867) 记录。不含表的工作簿保存行为与之前完全一致,也不带任何表记录流开销。BIFF5 保存不受影响,因为 Table 是 BIFF8+ 的概念

From v2.33.2 the BIFF8 writer also suppresses the standalone sheet-level AUTOFILTERINFO / AUTOFILTER 记录会在同一工作表上的 Table 完全覆盖自动筛选范围时被省略,因为 Excel 把自动筛选下拉内嵌在 Table 对象自身内部。从 v2.87.4 起,表自身的 Feature11 元数据还会设置表级和字段级 AutoFilter 标志,并发出空的逐列 Feat11FdaAutoFilter blocks Excel expects for table filter dropdowns

示例

var
  cols: TStringList;
begin
  Sheet.Cells.Item[1, 1].Value := 'Region';
  Sheet.Cells.Item[1, 2].Value := 'Product';
  Sheet.Cells.Item[1, 3].Value := 'Quarter';
  Sheet.Cells.Item[1, 4].Value := 'Revenue';
  // ... nine data rows below ...

  cols := TStringList.Create;
  try
    cols.Add('Region');
    cols.Add('Product');
    cols.Add('Quarter');
    cols.Add('Revenue');
    with Sheet.AddTable('SalesTable', 'A1:D10', cols) do
    begin
      StyleName       := 'TableStyleMedium2';
      ShowRowStripes  := True;
    end;
  finally
    cols.Free;
  end;

  Workbook.SaveAs('SalesTable.xls', xlExcel97);

请参阅

TXLSWorksheet.AddTable 方法
TXLSWorksheet.Tables 属性
TXLSXTable / TXLSXTables (XLSX side)