mltdbgrd.pas

这是一本关于delphi方面的书籍,其中有一些delphi的实例.

unit mltdbgrd;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  DB, DBTables, Grids, DBGrids, StdCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    DBGrid1: TDBGrid;
    DataSource1: TDataSource;
    Table1: TTable;
    Splitter1: TSplitter;
    Panel1: TPanel;
    ListBox1: TListBox;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var
  I: Integer;
  BookmarkList: TBookmarkList;
  Bookmark: TBookmarkStr;
begin
  // store the current position
  Bookmark := Table1.Bookmark;
  try
    // empty the listbox
    ListBox1.Items.Clear;
    // get the selected rows of the grid
    BookmarkList := DbGrid1.SelectedRows;
    for I := 0 to BookmarkList.Count - 1 do
    begin
      // for each, move the table to that record
      Table1.Bookmark := BookmarkList[I];
      // add the name field to the listbox
      ListBox1.Items.Add (Table1.FieldByName (
        'Name').AsString);
    end;
  finally
    // go back to the initial record
    Table1.Bookmark := Bookmark;
  end;
end;

end.