ji_ben_zi_cha.pas

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unit ji_ben_zi_cha;

interface

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

type
  Tji_ben_zi_ch = class(TForm)
    GroupBox1: TGroupBox;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    cob2: TComboBox;
    Edit1: TEdit;
    Button1: TButton;
    Button2: TButton;
    cob1: TComboBox;
    DBGrid1: TDBGrid;
    DataSource1: TDataSource;
    Query1: TQuery;
    cob4: TComboBox;
    cob5: TComboBox;
    Edit2: TEdit;
    Label6: TLabel;
    cob3: TComboBox;
    Label7: TLabel;
    CheckBox1: TCheckBox;
    procedure cob1KeyPress(Sender: TObject; var Key: Char);
    procedure cob2KeyPress(Sender: TObject; var Key: Char);
    procedure Edit1KeyPress(Sender: TObject; var Key: Char);
    procedure DateTimePicker3KeyPress(Sender: TObject; var Key: Char);
    procedure Button1Click(Sender: TObject);

    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormCreate(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure CheckBox1Click(Sender: TObject);
    procedure cob3KeyPress(Sender: TObject; var Key: Char);
    procedure cob4KeyPress(Sender: TObject; var Key: Char);
    procedure cob5KeyPress(Sender: TObject; var Key: Char);
    procedure Edit2KeyPress(Sender: TObject; var Key: Char);
    procedure FormActivate(Sender: TObject);
    procedure cob1Click(Sender: TObject);
    procedure cob2Click(Sender: TObject);
    procedure cob3Click(Sender: TObject);
    procedure cob4Click(Sender: TObject);
    procedure cob5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  ji_ben_zi_ch: Tji_ben_zi_ch;

implementation

{$R *.dfm}

procedure Tji_ben_zi_ch.cob1KeyPress(Sender: TObject; var Key: Char);
begin
if key=chr(13) then
 //   procedure cob1Click(Sender: TObject);
cob2.SetFocus;
end;

procedure Tji_ben_zi_ch.cob2KeyPress(Sender: TObject; var Key: Char);
begin
if key=chr(13) then
begin
if edit1.CanFocus then
edit1.SetFocus;

end;
end;

procedure Tji_ben_zi_ch.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
if key=chr(13) then
cob3.SetFocus;
end;

procedure Tji_ben_zi_ch.DateTimePicker3KeyPress(Sender: TObject; var Key: Char);
begin
if key=chr(13) then
button1.SetFocus;
end;

procedure Tji_ben_zi_ch.Button1Click(Sender: TObject);
 var str,str1,str2:string;
begin
//,str3
 str:='';
   if cob1.text<>'' then
   begin
     if cob1.Text='