jh_ghs_find_unit.pas

这是我照着书做的一个销售管理系统,内容不难,很简单,但是对于我这个菜鸟来说已经很不错了

unit jh_ghs_find_unit;

interface

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

type
  Tjh_ghs_find_form = class(TForm)
    GroupBox1: TGroupBox;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    SpeedButton1: TSpeedButton;
    SpeedButton2: TSpeedButton;
    SpeedButton3: TSpeedButton;
    ComboBox1: TComboBox;
    ComboBox2: TComboBox;
    Edit1: TEdit;
    DBGrid1: TDBGrid;
    StatusBar1: TStatusBar;
    DBGrid2: TDBGrid;
    DBGrid3: TDBGrid;
    DBGrid4: TDBGrid;
    procedure FormCreate(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
    procedure Edit1KeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure SpeedButton3Click(Sender: TObject);
    procedure SpeedButton2Click(Sender: TObject);
    procedure DBGrid1DblClick(Sender: TObject);
    procedure DBGrid2DblClick(Sender: TObject);
    procedure DBGrid3DblClick(Sender: TObject);
    procedure DBGrid4DblClick(Sender: TObject);
   private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  jh_ghs_find_form: Tjh_ghs_find_form;

implementation

uses data_unit, gyshzl_unit, jh_unit, jh_th_unit, xsh_unit;

{$R *.dfm}

procedure Tjh_ghs_find_form.FormCreate(Sender: TObject);
begin
self.Top :=150;
self.Left :=30;
self.Height :=300;
self.Width :=703;
self.DBGrid1.Visible :=true;
self.DBGrid2.Visible :=false;
self.DBGrid3.Visible :=false;
self.DBGrid4.Visible :=false;
with database do
begin
adoq1.Connection :=adoc;
adoq1.SQL.Clear ;
adoq1.SQL.Add('select * from ghszl ');
adoq1.active:=true;
statusbar1.Panels[1].Text :=inttostr(adoq1.Recordset.RecordCount);
datas1.DataSet :=adoq1;
dbgrid1.DataSource:=datas1;
dbgrid2.DataSource :=datas1;
dbgrid3.DataSource:=datas1;
dbgrid4.DataSource :=datas1;
end;

end;

procedure Tjh_ghs_find_form.SpeedButton1Click(Sender: TObject);
begin
with database do
begin
adoq3.Connection :=adoc;
adoq3.SQL.Clear; 
case combobox1.ItemIndex of
   0:
    begin
     case combobox2.ItemIndex of
      0:
        begin
            adoq3.SQL.Add('select * from ghszl where 供货商编码=:ghsbm');
            adoq3.Parameters.ParamByName('ghsbm').Value :=edit1.Text;
         end;
       1:
         begin
          adoq3.SQL.Add('select * from ghszl where 供货商编码 like :ghsbm2');
          adoq3.Parameters.ParamByName('ghsbm2').Value :=edit1.Text+'%';
         end;
       end;
   end;
  1:
 begin
     case combobox2.ItemIndex of
      0:
        begin
            adoq3.SQL.Add('select * from ghszl where 供货商名称=:ghsmc');
            adoq3.Parameters.ParamByName('ghsmc').Value :=edit1.Text;
         end;
       1:
         begin
          adoq3.SQL.Add('select * from ghszl where 供货商名称 like :ghsmc2');
          adoq3.Parameters.ParamByName('ghsmc2').Value :=edit1.Text+'%';
         end;
       end;
   end;
  2:
 begin
     case combobox2.ItemIndex of
      0:
        begin
            adoq3.SQL.Add('select * from ghszl where 拼音简码=:ghsjm');
            adoq3.Parameters.ParamByName('ghsjm').Value :=edit1.Text;
         end;
       1:
         begin
          adoq3.SQL.Add('select * from ghszl where 拼音简码 like :ghsjm2');
          adoq3.Parameters.ParamByName('ghsjm2').Value :=edit1.Text+'%';
         end;
       end;
   end
else
    begin
     adoq3.SQL.Clear ;
     adoq3.SQL.Add('select * from ghszl order by 供货商编码');
  end;
end;
adoq3.Active :=true;
if adoq3.Recordset.RecordCount >0 then
if adoq3.Recordset.RecordCount <2 then
begin
datas2.DataSet :=nil;
datas2.DataSet :=adoq3;
//self.Hide ;
if dbgrid1.Visible then DBGrid1.DataSource:=datas2;
if dbgrid2.Visible then DBGrid2.DataSource:=datas2;
if dbgrid3.Visible then DBGrid3.DataSource:=datas2;
if dbgrid4.Visible then DBGrid4.DataSource:=datas2;
//jh_form.statusbar1.Panels[1].Text :=inttostr(adoq3.Recordset.RecordCount);
end
else
showmessage('请正确选择记录!');
end;

end;

procedure Tjh_ghs_find_form.Edit1KeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
if key=vk_return then
speedbutton1click(nil);
end;

procedure Tjh_ghs_find_form.SpeedButton3Click(Sender: TObject);
begin
gyshzl_form:=Tgyshzl_form.create(application);
gyshzl_form.show;
end;

procedure Tjh_ghs_find_form.SpeedButton2Click(Sender: TObject);
begin
close;
end;

procedure Tjh_ghs_find_form.DBGrid1DblClick(Sender: TObject);
begin
{if dbgrid1.DataSource.DataSet.RecordCount>0 then
begin
jh_form.Edit3.Text:=dbgrid1.DataSource.DataSet.FieldValues['供货商名称'];
jh_form.Edit4.SetFocus ;
end;
dbgrid1.DataSource.DataSet :=nil;
self.Hide ;
end
else
showmessage('无此记录!'); }
if dbgrid1.DataSource.DataSet.RecordCount>0 then
begin
if jh_form.PageControl1.ActivePageIndex =0 then
begin
jh_form.Edit3.Text:=dbgrid1.DataSource.DataSet.FieldValues['供货商名称'];
jh_form.Edit4.SetFocus ;
end
else
begin
jh_form.Edit16.Text:=dbgrid1.DataSource.DataSet.FieldValues['供货商名称'];
jh_form.Edit17.SetFocus ;
end;
dbgrid1.DataSource.DataSet :=nil;
self.Hide ;
end
else
showmessage('无此记录!');
end;
procedure Tjh_ghs_find_form.DBGrid2DblClick(Sender: TObject);
begin
if dbgrid2.DataSource.DataSet.RecordCount>0 then
begin
jh_th_form.Edit3.Text:=dbgrid2.DataSource.DataSet.FieldValues['供货商名称'];
jh_th_form.Edit4.SetFocus ;
//dbgrid2.DataSource.DataSet :=nil;
self.Hide ;
end
else
showmessage('无此记录!');
end;

procedure Tjh_ghs_find_form.DBGrid3DblClick(Sender: TObject);
begin
if dbgrid3.DataSource.DataSet.RecordCount>0 then
begin
xsh_form.Edit3.Text:=dbgrid3.DataSource.DataSet.FieldValues['供货商名称'];
xsh_form.Edit4.SetFocus ;
//dbgrid2.DataSource.DataSet :=nil;
self.Hide ;
end
else
showmessage('无此记录!');
end;
//end;
procedure Tjh_ghs_find_form.DBGrid4DblClick(Sender: TObject);
begin
if dbgrid4.DataSource.DataSet.RecordCount>0 then
begin
xsh_form.Edit16.Text:=dbgrid4.DataSource.DataSet.FieldValues['供货商名称'];
xsh_form.Edit17.SetFocus ;
//dbgrid2.DataSource.DataSet :=nil;
self.Hide ;
end
else
showmessage('无此记录!');


end;

end.