mc_wzxxcx.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_WZXXCX;

interface

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

type
  TWZXXCX = class(TForm)
    Query1: TQuery;
    DataSource1: TDataSource;
    Query1BDEDesigner: TStringField;
    Query1BDEDesigner2: TStringField;
    Query1BDEDesigner3: TStringField;
    Query1BDEDesigner4: TStringField;
    Query1BDEDesigner5: TDateTimeField;
    Query1BDEDesigner6: TStringField;
    Query1BDEDesigner7: TStringField;
    Query1BDEDesigner8: TMemoField;
    DBGrid1: TDBGrid;
    Label1: TLabel;
    ComboBox1: TComboBox;
    ComboBox2: TComboBox;
    Edit1: TEdit;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    BitBtn3: TBitBtn;
    BitBtn4: TBitBtn;
    procedure BitBtn4Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormShow(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
    procedure BitBtn1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  WZXXCX: TWZXXCX;

implementation

uses MC_WZXXDJ, MC_MainForm;

{$R *.DFM}

procedure TWZXXCX.BitBtn4Click(Sender: TObject);
begin
     Close;
end;

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

procedure TWZXXCX.FormShow(Sender: TObject);
begin
     ComboBox1.ItemIndex:=0;
     ComboBox2.ItemIndex:=0;
     if MainForm.Query1.Locate('使用选项','违章信息查询',[loCaseInsensitive]) then
        begin
             if MainForm.Query1.FieldbyName('读写').AsString='读' then
                begin
                     Bitbtn2.ENabled:=False;
                     BitBtn3.Enabled:=False;
                end;
        end;
end;

procedure TWZXXCX.BitBtn2Click(Sender: TObject);
begin
     if Query1.Active then
     if Query1.RecordCount<>0 then
     if Not Assigned(WZXXDJ) then
        begin
             WZXXDJ:=TWZXXDJ.Create(Self);
             WZXXDJ.Table1.Locate('违章编号',Query1.FieldByname('违章编号').AsString,[loCaseInsensitive]);
             WZXXDJ.ShowModal;
             Query1.Close;
             Query1.Open;
        end;
end;

procedure TWZXXCX.BitBtn3Click(Sender: TObject);
begin
     if Query1.Active then
     if Query1.RecordCount<>0 then
     if MessageDlg('是否删除当前维修信息?',mtCustom,[mbYes,mbNo],0)=mrYes then Query1.Delete; 
end;

procedure TWZXXCX.BitBtn1Click(Sender: TObject);
begin
     if ComboBox2.Text='Like' then
        begin
             if Edit1.Text='*' then
                begin
                     Query1.Close;
                     Query1.SQL.Clear;
                     Query1.SQL.Add('Select * From 违章信息');
                     Query1.Open;
                end
             else
                Begin
                     With Query1 do
                     begin
                          Close;
                          SQL.Clear;
                          SQL.Add('Select * From 违章信息');
                          SQL.Add('where '+ComboBox1.Items[ComboBox1.ItemIndex]
                              +' Like '''+Edit1.Text+'%''');
                          Open;
                     end;
                end;
        end;
//--------------------------------------------------------------------
     if ComboBox2.Text='=' then
        begin
             With Query1 do
             begin
                  Close;
                  SQL.Clear;
                  SQL.Add('Select * From 违章信息');
                  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　违章信息');
                  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 违章信息');
                  SQL.Add('where '+ComboBox1.Items[ComboBox1.ItemIndex]
                         +' < '''+Edit1.Text+'''');
                  Open;
             end;
        end;
//--------------------------------------------------------------------
end;

end.