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让你的DBGrid竖着站（1）    热     ★★★★

让你的DBGrid竖着站（1）

作者：闵涛 文章来源：闵涛的学习笔记 点击数：9125 更新时间：2009/4/23 18:28:26
nbsp;   procedure ReadColumns(Reader: TReader);
    procedure RecordChanged(Field: TField);
    procedure SetIme;
    procedure SetColumns(Value: TDBGridColumns);
    procedure SetDataSource(Value: TDataSource);
    procedure SetOptions(Value: TDBGridOptions);
    procedure SetSelectedField(Value: TField);
    procedure SetSelectedIndex(Value: Integer);
    procedure SetTitleFont(Value: TFont);
    procedure TitleFontChanged(Sender: TObject);
    procedure UpdateData;
    procedure UpdateActive;
    procedure UpdateIme;
    procedure UpdateScrollBar;
    procedure UpdateRowCount;
    procedure WriteColumns(Writer: TWriter);
    procedure SetVertical(Value: Boolean);
    procedure SetOnlyOne(Value: Boolean);
    procedure SetTitlesWidth(Value: integer);
    function TabStopRow(Arow: integer): Boolean;
    procedure CMExit(var Message: TMessage); message CM_EXIT;
    procedure CMFontChanged(var Message: TMessage); message CM_FONTCHANGED;
    procedure CMParentFontChanged(var Message: TMessage); message CM_PARENTFONTCHANGED;
    procedure CMDeferLayout(var Message); message cm_DeferLayout;
    procedure CMDesignHitTest(var Msg: TCMDesignHitTest); message CM_DESIGNHITTEST;
    procedure WMSetCursor(var Msg: TWMSetCursor); message WM_SETCURSOR;
    procedure WMSize(var Message: TWMSize); message WM_SIZE;
    procedure WMVScroll(var Message: TWMVScroll); message WM_VSCROLL;
    procedure WMHScroll(var Message: TWMHScroll); message WM_HSCROLL;
    procedure WMIMEStartComp(var Message: TMessage); message WM_IME_STARTCOMPOSITION;
    procedure WMSetFocus(var Message: TWMSetFocus); message WM_SetFOCUS;
    procedure WMKillFocus(var Message: TMessage); message WM_KillFocus;
  protected
    FUpdateFields: Boolean;
    FAcquireFocus: Boolean;
    FUpdatingEditor: Boolean;
    function  RawToDataColumn(ACol: Integer): Integer;
    function  DataToRawColumn(ACol: Integer): Integer;
    function  AcquireLayoutLock: Boolean;
    procedure BeginLayout;
    procedure BeginUpdate;
    procedure CancelLayout;
    function  CanEditAcceptKey(Key: Char): Boolean; override;
    function  CanEditModify: Boolean; override;
    function  CanEditShow: Boolean; override;
    procedure CellClick(Column: TColumn); dynamic;
    procedure ColumnMoved(FromIndex, ToIndex: Longint); override;
    procedure RowMoved(FromIndex, ToIndex: Longint); override;
    procedure ColEnter; dynamic;
    procedure ColExit; dynamic;
    procedure ColWidthsChanged; override;
    function  CreateColumns: TDBGridColumns; dynamic;
    function  CreateEditor: TInplaceEdit; override;
    procedure CreateWnd; override;
    procedure DeferLayout;
    procedure DefaultHandler(var Msg); override;
    procedure DefineFieldMap; virtual;
    procedure DefineProperties(Filer: TFiler); override;
    procedure DrawCell(ACol, ARow: Longint; ARect: TRect; AState: TGridDrawState); override;
    procedure DrawDataCell(const Rect: TRect; Field: TField;
      State: TGridDrawState); dynamic; { obsolete }
    procedure DrawColumnCell(const Rect: TRect; DataCol: Integer;
      Column: TColumn; State: TGridDrawState); dynamic;
    procedure EditButtonClick; dynamic;
    procedure EndLayout;
    procedure EndUpdate;
    function  GetColField(DataCol: Integer): TField;
    function  GetEditLimit: Integer; override;
    function  GetEditMask(ACol, ARow: Longint): string; override;
    function  GetEditText(ACol, ARow: Longint): string; override;
    function  GetFieldValue(ACol: Integer): string;
    function  HighlightCell(DataCol, DataRow: Integer; const Value: string;
      AState: TGridDrawState): Boolean; virtual;
    procedure KeyDown(var Key: Word; Shift: TShiftState); override;
    procedure KeyPress(var Key: Char); override;
    procedure LayoutChanged; virtual;
    procedure LinkActive(Value: Boolean); virtual;
    procedure Loaded; override;
    procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
      X, Y: Integer); override;
    procedure MouseUp(Button: TMouseButton; Shift: TShiftState;
      X, Y: Integer); override;
    procedure Notification(AComponent: TComponent; Operation: TOperation); override;
    procedure Scroll(Distance: Integer); virtual;
    procedure SetColumnAttributes; virtual;
    procedure SetEditText(ACol, ARow: Longint; const Value: string); override;
    function  StoreColumns: Boolean;
    procedure TimedScroll(Direction: TGridScrollDirection); override;
    procedure TitleClick(Column: TColumn); dynamic;
    property Columns: TDBGridColumns read FColumns write SetColumns;
    property DefaultDrawing: Boolean read FDefaultDrawing write FDefaultDrawing default True;
    property DataSource: TDataSource read GetDataSource write SetDataSource;
    property DataLink: TGridDataLink read FDataLink;
    property IndicatorOffset: Byte read FIndicatorOffset;
    property LayoutLock: Byte read FLayoutLock;
    property Options: TDBGridOptions read FOptions write SetOptions
      default [dgEditing, dgTitles, dgIndicator, dgColumnResize, dgColLines,
      dgRowLines, dgTabs, dgConfirmDelete, dgCancelOnExit];
    property ParentColor default False;
    property ReadOnly: Boolean read FReadOnly write FReadOnly default False;
    property SelectedRows: TBookmarkList read FBookmarks;
    property TitleFont: TFont read FTitleFont write SetTitleFont;
    property UpdateLock: Byte read FUpdateLock;
    property OnColEnter: TNotifyEvent read FOnColEnter write FOnColEnter;
    property OnColExit: TNotifyEvent read FOnColExit write FOnColExit;
    property OnDrawDataCell: TDrawDataCellEvent read FOnDrawDataCell
      write FOnDrawDataCell; { obsolete }
    property OnDrawColumnCell: TDrawColumnCellEvent read FOnDrawColumnCell
      write FOnDrawColumnCell;
    property OnEditButtonClick: TNotifyEvent read FOnEditButtonClick
      write FOnEditButtonClick;
    property OnColumnMoved: TMovedEvent read FOnColumnMoved write FOnColumnMoved;
    property OnCellClick: TDBGridClickEvent read FOnCellClick write FOnCellClick;
    property OnTitleClick: TDBGridClickEvent read FOnTitleClick write FOnTitleClick;
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure DefaultDrawDataCell(const Rect: TRect; Field: TField;
      State: TGridDrawState); { obsolete }
    procedure DefaultDrawColumnCell(const Rect: TRect; DataCol: Integer;
      Column: TColumn; State: TGridDrawState);
    function ValidFieldIndex(FieldIndex: Integer): Boolean;
    property EditorMode;
    property FieldCount: Integer read GetFieldCount;
    property Fields[FieldIndex: Integer]: TField read GetFields;
    property SelectedField: TField read GetSelectedField write SetSelectedField;
    property SelectedIndex: Integer read GetSelectedIndex write SetSelectedIndex;
    property Vertical: Boolean read FVertical write SetVertical default False;
    property OnlyOne: Boolean read FOnlyOne write SetOnlyOne default False;
    property TitlesWidth: integer read FTitlesWidth write SetTitlesWidth;
  end;

  TVDBGrid = class(TCustomVDBGrid)
  public
    property Canvas;
    property SelectedRows;
  published
    property Align;
    property BorderStyle;
    property Color;
    property Columns stored False; //StoreColumns;
    property Ctl3D;
    property DataSource;
    property DefaultDrawing;
&nb

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