unit6.pas

毕业设计(带论文)—试卷生成系统,做的不错

  end;
end;

 end;
 end;
if TreeView1.Selected.text='第八知识点 共用体' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''728%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7281;
  end;
end;

 end;
 end;
if TreeView1.Selected.text='第九知识点 枚举类型' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''729%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=7291;
  end;
end;

 end;
 end;
 {
if TreeView1.Selected.text='第八章 预处理命令  ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''8%%%''');
query1.Open;
 end;
 end;
if TreeView1.Selected.text='第一节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''81%%''');
query1.Open;
 end;
end;                                }


if TreeView1.Selected.text='第一知识点 宏' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''811%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8111;
  end;
end;

 end;
 end;
if TreeView1.Selected.text='第二知识点 条件编译' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''812%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8121;
  end;
end;

 end;
 end;
if TreeView1.Selected.text='第三知识点 文件包含' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''813%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8131;
  end;
end;

 end;
 end;
 {
if TreeView1.Selected.text='第二节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''82%%''');
query1.Open;
 end;
end;                           }


if TreeView1.Selected.text='第一知识点 文件概述' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''821%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8211;
  end;
end;

 end;
 end;
if TreeView1.Selected.text='第二知识点 文件的输入输出' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''822%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8221;
  end;
end;

 end;
 end;
if TreeView1.Selected.text='第三知识点 文件的定位操作' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''823%''order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8231;
  end;
end;

 end;
 end;
if TreeView1.Selected.text='第四知识点 文件的检测' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''824%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=8241;
  end;
end;

 end;
 end;
 {
if TreeView1.Selected.text='第九章 常用算法设计  ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''9%%%''');
query1.Open;
 end;
 end;

if TreeView1.Selected.text='第一节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''91%%''');
query1.Open;
 end;
end;                     }


if TreeView1.Selected.text='第一知识点 排序' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''911%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9111;
  end;
end;

 end;
 end;
 {
if TreeView1.Selected.text='第二节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''92%%''');
query1.Open;
 end;
end;                               }


if TreeView1.Selected.text='第一知识点 查找' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''921%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9211;
  end;
end;

 end;
 end;
 {
if TreeView1.Selected.text='第三节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''93%%''');
query1.Open;
 end;
end;                 }

if TreeView1.Selected.text='第一知识点 枚举法' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''931%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9311;
  end;
end;

 end;
 end;                          {
if TreeView1.Selected.text='第四节 ' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''94%%''');
query1.Open;
 end;
end;                            }

if TreeView1.Selected.text='第一知识点 递归法' then
   begin
  query1.Active:=false;
  query1.Active:=true;
if(query1.Active=true)then
begin
query1.Close;
query1.SQL.Clear;
query1.SQL.Add('select * from ti_choose where tno like ''941%'' order by tno');
query1.Open;
begin
  if query1.RecordCount<>0 then
  begin
  query1.Last;
  temp:=query1.FieldValues['tno']+1;
  end
  else if query1.RecordCount=0 then
  begin
     temp:=9411;
  end;
end;

 end;
 end;
  DBMemo2.DataSource:=DataSource1;
  DBEdit8.DataSource:=DataSource1;
  DBEdit9.DataSource:=DataSource1;
  DBEdit10.DataSource:=DataSource1;
  DBEdit11.DataSource:=DataSource1;
  DBEdit12.DataSource:=DataSource1;
  DBEdit13.DataSource:=DataSource1;
  DBComboBox1.DataSource:=DataSource1;
  DBRadioGroup2.DataSource:=DataSource1;
 DBNavigator2.DataSource:=DataSource1;
end;

procedure Tchooseform.BitBtn3Click(Sender: TObject);
begin
DBNavigator1.BtnClick(nbCancel);
end;


function Tchooseform.checknewchoose:boolean;
var
success:boolean;
begin
success:=true;
with DataModule4.Table_choose do
begin
if DBEdit8.Text='' then
success:=false;
if DBEdit9.Text='' then
success:=false;
if DBEdit10.Text='' then
success:=false;
if DBEdit11.Text='' then
success:=false;
if DBComboBox1.Text='' then
success:=false;

if DBMemo2.Text='' then
success:=false;

if DBRadioGroup2.Value='' then
success:=false;

if not success then
begin
showmessage('红色项必须填写,请补上未填的红色项!');
end;
  checknewchoose:=success;
end;

end;


procedure Tchooseform.BitBtn2Click(Sender: TObject);
begin

 if addchoose then
     begin
       if checknewchoose then
       begin

       DataModule4.Table_choose.Post;
DataModule4.Table_choose.Close;
DataModule4.Table_choose.Open;
       showmessage('添加成功!');

       addchoose:=false;
       DBNavigator2.DataSource:=DataModule4.DataSource_choose;
    //   inc(newshijuanhao);
     //  DataModule4.Table_shijuan.UpdateRecord;
     DBNavigator1.Enabled:=true;
        end
    else
    exit;
end;


end;

procedure Tchooseform.FormCreate(Sender: TObject);

begin
//bw:=DBNavigator1.Width;
//ew:=(DBNavigator1.Width div 2);
addchoose:=false;

end;

procedure Tchooseform.DBMemo2MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
//
 //  DBMemo2.ReadOnly:=false;

  //             DataModule4.Table_choose.
{                                                     
DBMemo2.DataSource:=DataModule4.DataSource_choose;
  DBEdit8.DataSource:=DataModule4.DataSource_choose;
  DBEdit9.DataSource:=DataModule4.DataSource_choose ;
  DBEdit10.DataSource:=DataModule4.DataSource_choose;
  DBEdit11.DataSource:=DataModule4.DataSource_choose;
  DBEdit12.DataSource:=DataModule4.DataSource_choose;
  DBEdit13.DataSource:=DataModule4.DataSource_choose ;
  DBEdit14.DataSource:=DataModule4.DataSource_choose ;
  DBRadioGroup2.DataSource:=DataModule4.DataSource_choose;    }
end;

procedure Tchooseform.TreeView1MouseDown(Sender: TObject;
  Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
DBNavigator1.Enabled:=true;
end;

procedure Tchooseform.DBNavigator2Click(Sender: TObject;
  Button: TNavigateBtn);
begin


case button of
nbFirst:

begin
  DataModule4.Table_choose.First;
  end;
end;

end;
procedure Tchooseform.DBEdit13Change(Sender: TObject);

begin

//showmessage(inttostr(bw));
//showmessage(inttostr(ew));
if DBEdit13.Text='' then
begin
DBNavigator1.VisibleButtons:=[nbInsert];

 DBNavigator1.Width:=28;
 end;
if DBEdit13.Text<>'' then
begin
 DBNavigator1.Width:=56;
DBNavigator1.VisibleButtons:=[nbInsert,nbDelete];

end;
end;

end.