Ребята!
Подскажите, пожалуйста, как построить блок-схему? Запуталась где то в начале
C++ |
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| //---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
#include "u_edit.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
Tfrm_edit *frm_edit;
//---------------------------------------------------------------------------
__fastcall Tfrm_edit::Tfrm_edit(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------
void Tfrm_edit::ClearEdits()
{
// очистка полей Tedit
ed_id->Text = "";
ed_name->Text = "";
ed_avtor->Text = "";
ed_izd->Text = "";
ed_god->Text = "";
ed_isbn->Text = "";
ed_otdel->Text = "";
ed_kstr->Text = "";
ed_kolvo->Text = "";
cb_il->Checked = false;
}
//---------------------------------------------------------------------------
void Tfrm_edit::ReadOnly_en()
{
// нельзя редактировать
ed_id->ReadOnly = true;
ed_name->ReadOnly = true;
ed_avtor->ReadOnly = true;
ed_izd->ReadOnly = true;
ed_god->ReadOnly = true;
ed_isbn->ReadOnly = true;
ed_otdel->ReadOnly = true;
ed_kstr->ReadOnly = true;
ed_kolvo->ReadOnly = true;
cb_il->Enabled = false;
}
//---------------------------------------------------------------------------
void Tfrm_edit::ReadOnly_dis()
{
// можно редактировать
ed_id->ReadOnly = false;
ed_name->ReadOnly = false;
ed_avtor->ReadOnly = false;
ed_izd->ReadOnly = false;
ed_god->ReadOnly = false;
ed_isbn->ReadOnly = false;
ed_otdel->ReadOnly = false;
ed_kstr->ReadOnly = false;
ed_kolvo->ReadOnly = false;
cb_il->Enabled = true;
}
//---------------------------------------------------------------------------
void __fastcall Tfrm_edit::FormShow(TObject *Sender)
{
ActiveControl = ed_id; // установить фокус ввода
}
//---------------------------------------------------------------------------
void __fastcall Tfrm_edit::bt_okClick(TObject *Sender)
{
if (Proverka() != 0)
{
Application->MessageBoxA(str_err.c_str(),"Ошибка",
MB_OK|MB_ICONSTOP);
ModalResult = 10;
}
}
//---------------------------------------------------------------------------
int Tfrm_edit::Proverka()
{
// проверка правильности значений
str_err = "";
if (
(ed_id->Text == "")
||(ed_name->Text == "")
||(ed_avtor->Text == "")
||(ed_izd->Text == "")
||(ed_god->Text == "")
||(ed_isbn->Text == "")
||(ed_kstr->Text == "")
||(ed_kolvo->Text == "")
||(ed_otdel->Text == "")
)
{
str_err = "Поля не должны быть пустыми";
return(1);
}
try
{
StrToInt(ed_id->Text);
}
catch(...)
{
str_err = Label1->Caption + " - некорректное значение";
return(2);
}
try
{
StrToInt(ed_kstr->Text);
}
catch(...)
{
str_err = Label6->Caption + " - некорректное значение";
return(3);
}
try
{
StrToInt(ed_otdel->Text);
}
catch(...)
{
str_err = Label9->Caption + " - некорректное значение";
return(4);
}
try
{
StrToInt(ed_kolvo->Text);
}
catch(...)
{
str_err = Label10->Caption + " - некорректное значение";
return(5);
}
str_err = "ok";
return(0);
}
//--------------------------------------------------------------------------- |
|