mc_zxxxcx.~pas

1、系统环境要求：所有程序均在Windows98/XP操作系统下测试运行。 2、建议用户在系统上安装DELPHI7.0企业版。 3、如果数据库为SQL Server数据库

unit MC_ZXXXCX;

interface

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

type
  TZXXXCX = class(TForm)
    GroupBox1: TGroupBox;
    Query1: TQuery;
    DataSource1: TDataSource;
    DBGrid1: TDBGrid;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    DateTimePicker1: TDateTimePicker;
    Label1: TLabel;
    DateTimePicker2: TDateTimePicker;
    Label2: TLabel;
    ComboBox1: TComboBox;
    ComboBox2: TComboBox;
    BitBtn4: TBitBtn;
    Edit1: TEdit;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure BitBtn3Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure BitBtn4Click(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  ZXXXCX: TZXXXCX;

implementation

uses MC_ZXXXDJ;

{$R *.DFM}

procedure TZXXXCX.FormClose(Sender: TObject; var Action: TCloseAction);
begin
     ZXXXCX.Release;
     ZXXXCX:=Nil;
end;

procedure TZXXXCX.BitBtn3Click(Sender: TObject);
begin
     Close;
end;

procedure TZXXXCX.BitBtn2Click(Sender: TObject);
begin
     if Query1.Active then
     if Query1.RecordCount<>0 then
     if MessageDlg('是否删除当前装修信息?',mtCustom,[mbYes,mbNO],0)=mrYes then
        Query1.Delete;
end;

procedure TZXXXCX.FormShow(Sender: TObject);
begin
     ComboBox1.ItemIndex:=0;
     ComboBox2.ItemIndex:=0;
     if MainFrom.Query1.Locate('使用选项','装修信息登记',[loCaseInsensitive]) then
        begin
             if MainFrom.query1.Fieldbyname('读写').AsString='读' then
                begin
                     BitBtn1.Enabled:=False;
                     BitBtn2.Enabled:=False;
                end;
        end;
end;

procedure TZXXXCX.BitBtn4Click(Sender: TObject);
begin
     if Length(Edit1.Text)=0 then ShowMessage('请输入相关信息')
     else
     begin
          if comboBox2.Text='Like' then
          if Edit1.Text='*' then
             begin
                  With Query1 do
                  begin
                       Close;
                       SQL.Clear;
                       SQL.Add('Select * From 装修信息');
                       Open;
                  end;
             end
          else
             begin
                  With Query1 do
                  begin
                       Close;
                       SQL.Clear;
                       SQL.Add('Select * From 装修信息');
                       SQL.Add('where '+ComboBox1.Items[ComboBox1.ItemIndex]
                               +' Like '''+Edit1.Text+'%''');
                       Open;
                  end;
             end;
          //------------------------------------------------------
          if comboBox2.Text='=' then
             begin
                  With Query1 do
                  begin
                       Close;
                       SQL.Clear;
                       SQL.Add('Select * From 装修信息');
                       SQL.Add('where '+ComboBox1.Items[ComboBox1.ItemIndex]
                               +' = '''+Edit1.Text+'''');
                       Open;
                  end;
             end;
          //---------------------------------------------------------
          if comboBox2.Text='>' then
             begin
                  With Query1 do
                  begin
                       Close;
                       SQL.Clear;
                       SQL.Add('Select * From 装修信息');
                       SQL.Add('where '+ComboBox1.Items[ComboBox1.ItemIndex]
                               +' > '''+Edit1.Text+'''');
                       Open;
                  end;
             end;
          //---------------------------------------------------------
          if comboBox2.Text='<' then
             begin
                  With Query1 do
                  begin
                       Close;
                       SQL.Clear;
                       SQL.Add('Select * From 装修信息');
                       SQL.Add('where '+ComboBox1.Items[ComboBox1.ItemIndex]
                               +' < '''+Edit1.Text+'''');
                       Open;
                  end;
             end;
          //---------------------------------------------------------
     end;
end;

procedure TZXXXCX.BitBtn1Click(Sender: TObject);
begin
     if Query1.Active then
     if Query1.RecordCount<>0 then
     if not Assigned(ZXXXDJ) then
        begin
             ZXXXDJ:=TZXXXDJ.Create(Self);
             ZXXXDJ.Table1.Locate('编号',Query1.FieldbyName('编号').AsString,[loCaseInsensitive]);
             ZXXXDJ.ShowModal;
             Query1.Close;
             Query1.Open;
        end;
end;

end.