cx310unit.pas

货物配送管理系统对配送服务

unit CX310Unit;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, PublicUnit, jpeg, ExtCtrls, Grids, DBGrids, DBCtrls, ComCtrls,
  StdCtrls;

type
  TCX310Form = class(TPublicUnit)
    Panel1: TPanel;
    Label1: TLabel;
    Label3: TLabel;
    Label5: TLabel;
    ComboBox1: TComboBox;
    Button7: TButton;
    Button8: TButton;
    Button9: TButton;
    CheckBox1: TCheckBox;
    DateTimePicker1: TDateTimePicker;
    DateTimePicker2: TDateTimePicker;
    DBNavigator1: TDBNavigator;
    Panel2: TPanel;
    Panel3: TPanel;
    DBGrid1: TDBGrid;
    DBGrid2: TDBGrid;
    DBNavigator2: TDBNavigator;
    Label4: TLabel;
    procedure Button9Click(Sender: TObject);
    procedure CheckBox1Click(Sender: TObject);
    procedure ComboBox1DropDown(Sender: TObject);
    procedure Button7Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  CX310Form: TCX310Form;

implementation

{$R *.dfm}
uses DMUnit;

procedure TCX310Form.Button9Click(Sender: TObject);
begin
  inherited;
  Close;
end;

procedure TCX310Form.CheckBox1Click(Sender: TObject);
begin
  inherited; // 判断是否可用
  DateTimePicker1.Enabled := CheckBox1.Checked;
  DateTimePicker2.Enabled := CheckBox1.Checked;
end;

procedure TCX310Form.ComboBox1DropDown(Sender: TObject);
var
  I: Integer;
begin
  inherited;
  combobox1.Clear;
  with DM.Querytemp do
  begin
    SQL.clear;
    SQl.Text := 'select 车牌号码 from 车辆资料 ';
    Close;
    Active := False;
    prepared := False;
    prepared := True;
    Active := True;
    if (recordcount > 0) then
      first;
    for i := 0 to recordcount - 1 do
    begin //取得该列所有的数据到combobox2控件中
      combobox1.Items.add(FieldByName('车牌号码').asstring);
      next;
    end;
  end;
end;

procedure TCX310Form.Button7Click(Sender: TObject);
begin
  inherited;
  {--- 判断搜索的条件是否为空  ---}
  if (Combobox1.Text <> '') then
  begin
    with DM.Querytemp do
    begin
      SQL.clear;
      if CheckBox1.Checked then
        SQl.Text := 'select * from 货运明细 where 车号 like '
          + #39 + '%' + trim(combobox1.Text) + '%' + #39 + 'and 日期 > #'
          + FormatDateTime('yyyy/mm/dd', DateTimePicker1.DateTime) + '# and 日期 < #' + FormatDateTime('yyyy/mm/dd', DateTimePicker2.DateTime) + '#'
      else
        SQl.Text := 'select * from 货运明细 where 车号 like '
          + #39 + '%' + trim(combobox1.Text) + '%' + #39;
      Close;
      Active := False;
      prepared := False;
      prepared := True;
      Active := True;
      open;
      DBGrid2.DataSource := DM.dsQuerytemp;
      DBNavigator2.DataSource := DM.dsQuerytemp;
    end;
  end
  else
    MessageBox(0, '搜寻条件错误', '错误', MB_OK + MB_ICONSTOP);
end;

end.