[beralus]

Люди добрые, код следующий. после наследование при вызове процедуры doEqualColumnWidthes не меняется ширины колонки.
Мышкой расширяется колонка , но значенеи своство
DBGrid1.Columns[i].Width. Чего я не правильно делаю?
Задача такая : При изменение ширина колонки DBGrid1-a автоматическ изменить ширыны соответствующий колонки StringGrid1 -а

Код:

unit Unit16;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Data.DB, Vcl.Grids, Vcl.DBGrids,
  FireDAC.Stan.Intf, FireDAC.Stan.Option, FireDAC.Stan.Param,
  FireDAC.Stan.Error, FireDAC.DatS, FireDAC.Phys.Intf, FireDAC.DApt.Intf,
  FireDAC.Comp.DataSet, FireDAC.Comp.Client, Vcl.StdCtrls;
type TDbgrid=class(vcl.dbgrids.TDbgrid)
  protected
    OnColumnResized:TProc;
    procedure ColWidthsChanged; override;
end;
type
  TForm16 = class(TForm)
    Dbgrid1:Tdbgrid;
    StringGrid1: TStringGrid;
    FDMemTable1: TFDMemTable;
    DataSource1: TDataSource;
    btn_doEqulaColumns: TButton;
    procedure FormCreate(Sender: TObject);
    procedure btn_doEqulaColumnsClick(Sender: TObject);
  private
   procedure doEqualColumnWidthes;
  public
    { Public declarations }
  end;

var
  Form16: TForm16;

implementation

{$R *.dfm}

procedure TDbgrid.ColWidthsChanged;
begin
  //
end;

procedure TForm16.btn_doEqulaColumnsClick(Sender: TObject);
begin
   doEqualColumnWidthes;
end;

procedure TForm16.doEqualColumnWidthes;
var i:integer;
begin
    for I := 0 to self.DBGrid1.Columns.Count-1  do
         self.StringGrid1.ColWidths[i]:=self.DBGrid1.Columns[i].Width;
end;

procedure TForm16.FormCreate(Sender: TObject);
begin
self.FDMemTable1.Close;
self.FDMemTable1.FieldDefs.Clear;
FDMemTable1.FieldDefs.Add('name', ftString,20);
FDMemTable1.FieldDefs.Add('age', ftinteger) ;

FDMemTable1.CreateDataSet;

FDMemTable1.Append;
FDMemTable1.FieldByName('name').AsString:='Alise';
FDMemTable1.FieldByName('age').AsInteger:=20;
FDmemtable1.post;

FDMemTable1.Append;
FDMemTable1.FieldByName('name').AsWideString:='Bob';
FDMemTable1.FieldByName('age').AsInteger:=20;
FDmemtable1.post;

self.DataSource1.DataSet:=self.FDMemTable1;

self.DBGrid1.DataSource:=self.DataSource1;

self.StringGrid1.FixedCols:=0;
Self.StringGrid1.RowCount:=2;
self.StringGrid1.ColCount:=self.DBGrid1.Columns.count;

doEqualColumnWidthes;
end;

end.

[lmikle]

Delphi XE3. Вот такой код работает как по кнопке, так и автоматически:

Код:

unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.Grids, Vcl.DBGrids,
  Data.DB, dxmdaset;

type
  TDBGrid = class(vcl.dbgrids.TDBGrid)
  private
    FColResize : TNotifyEvent;
  protected
    procedure ColWidthsChanged; override;
  public
    property OnColResize : TNotifyEvent read FColResize write FColResize;
  end;

  TForm1 = class(TForm)
    dxMemData1: TdxMemData;
    dxMemData1Field1: TStringField;
    dxMemData1Field2: TStringField;
    dxMemData1Field3: TStringField;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    StringGrid1: TStringGrid;
    btSyncColWidths: TButton;
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure btSyncColWidthsClick(Sender: TObject);
  private
    { Private declarations }
    procedure SyncColWoidths;
    procedure DBGridColResize(Sender : TObject);
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

{ TDBFrid }

procedure TDBGrid.ColWidthsChanged;
begin
  inherited;
  if Assigned(FColResize) then
    FColResize(Self);
end;

{ TForm1 }

procedure TForm1.btSyncColWidthsClick(Sender: TObject);
begin
  SyncColWoidths;
end;

procedure TForm1.DBGridColResize(Sender: TObject);
begin
  SyncColWoidths;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  dxMemData1.Active := True;
  dxMemData1.AppendRecord([1,'Rec1 Fld1','Rec1 Fld2','Rec1 Fld3']);
  dxMemData1.AppendRecord([2, 'Rec2 Fld1','Rec2 Fld2','Rec2 Fld3']);
  dxMemData1.AppendRecord([3, 'Rec3 Fld1','Rec3 Fld2','Rec3 Fld3']);
  SyncColWoidths;
  DBGrid1.OnColResize := DBGridColResize;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
  dxMemData1.Active := False;
end;

procedure TForm1.SyncColWoidths;
var
  I : Integer;
begin
  for I := 0 to DBGrid1.Columns.Count-1 do
    StringGrid1.ColWidths[i] := DBGrid1.Columns[i].Width;
end;

end.