courseidlg.cpp

这是一个学生管理系统 包含学生基本信息 选课信息 宿舍信息 教师信息 课程信息 班机信息 教师信息等录入 查询 修改删除等强大功能

// CourseIdlg.cpp : implementation file
//

#include "stdafx.h"
#include "Student.h"
#include "CourseIdlg.h"
#include "CourseSet.h"
#include "myrecord.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CCourseIdlg dialog


CCourseIdlg::CCourseIdlg(CWnd* pParent /*=NULL*/)
	: CDialog(CCourseIdlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CCourseIdlg)
	m_help = _T("");
	m_introduction = _T("");
	m_kind = _T("");
	m_name = _T("");
	m_course_no = _T("");
	m_ccredit = _T("");
	//}}AFX_DATA_INIT
}


void CCourseIdlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CCourseIdlg)
	DDX_Text(pDX, IDC_EDIT_HELP, m_help);
	DDX_Text(pDX, IDC_EDIT_INTRODC, m_introduction);
	DDX_Text(pDX, IDC_EDIT_KIND, m_kind);
	DDX_Text(pDX, IDC_EDIT_NAME, m_name);
	DDX_Text(pDX, IDC_EDIT_NO, m_course_no);
	DDX_Text(pDX, IDC_EDIT_CREDIT, m_ccredit);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CCourseIdlg, CDialog)
	//{{AFX_MSG_MAP(CCourseIdlg)
	ON_BN_CLICKED(IDC_BTN_OK, OnBtnOk)
	ON_EN_SETFOCUS(IDC_EDIT_CREDIT, OnSetfocusEditCredit)
	ON_EN_SETFOCUS(IDC_EDIT_INTRODC, OnSetfocusEditIntrodc)
	ON_EN_SETFOCUS(IDC_EDIT_KIND, OnSetfocusEditKind)
	ON_EN_SETFOCUS(IDC_EDIT_NAME, OnSetfocusEditName)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCourseIdlg message handlers

BOOL CCourseIdlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	GenNext();
	UpdateData(FALSE);
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CCourseIdlg::OnBtnOk() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	if(m_name.IsEmpty())
	{
		MessageBeep(MB_ICONEXCLAMATION);
		this->GetDlgItem(IDC_EDIT_NAME)->SetFocus();
		return;
	}
	if(m_kind.IsEmpty())
	{
		MessageBeep(MB_ICONEXCLAMATION);
		this->GetDlgItem(IDC_EDIT_KIND)->SetFocus();
		return;
	}
	if(!UpdateDB())
		return;
	GenNext();
	UpdateData(FALSE);
	this->GetDlgItem(IDC_EDIT_NAME)->SetFocus();
}

void CCourseIdlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	
	CDialog::OnCancel();
}



void CCourseIdlg::OnSetfocusEditCredit() 
{
	// TODO: Add your control notification handler code here
	
	UpdateData(TRUE);
	m_help="请输入入学分信息";
	UpdateData(FALSE);
}

void CCourseIdlg::OnSetfocusEditIntrodc() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_help="请输入介绍信息：长度不限";
	UpdateData(FALSE);
}

void CCourseIdlg::OnSetfocusEditKind() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_help="请输入种类信息选修或者必修";
	UpdateData(FALSE);
}

void CCourseIdlg::OnSetfocusEditName() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	m_help="请输入姓名信息";
	UpdateData(FALSE);
}

CString CCourseIdlg::GetNextNo()
{
	static int num=0;
	CCourseSet rs;
	CString strValue,strSQL;
	BOOL Success;
	
	if(num==0)
	{
		strSQL.Format("select max(substr(stu_no,5)) from Course where substr(course_no,1,4)=\'%02d%s\'");
		Success=rs.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
		if (Success && rs.GetRecordCount()>0)
			rs.GetFieldValue((short)0,strValue);
		else
			strValue="0";
		num=atoi(strValue);
	}
	num++;
	strValue.Format("%04d",num);
	return strValue;
}

void CCourseIdlg::GenNext()
{
	CCourseSet rs;

	CString strValue;
	CString strFileName;
	
	static HBITMAP hBitmap=NULL;
	// TODO: Add extra initialization here
	
	m_course_no=GetNextNo();
	m_kind="";
	m_name="";
	m_introduction="";
	m_ccredit="";
		
}
BOOL CCourseIdlg::UpdateDB()
{
	CString strSQL,strValue,strTemp;
	
	//strTemp.Format("%d,to_date(\'%4d-%2d-%2d\',\'yyyy-mm-dd\')",m_score,m_birth_year,m_birth_month,m_birth_day);
	strSQL="insert into student(course_no,name,kind,credit";
	strValue="\'"+m_course_no+"\',\'"+m_name+"\',\'"+m_kind+"\',\'"+m_ccredit;
	if (!m_introduction.IsEmpty())
	{
		strSQL+=",introduction";
		strValue+=",\'"+m_introduction+"\'";
	}
	
	
	strSQL+=") values("+strValue+")";
	//MessageBox(strSQL);
	m_pDB->ExecuteSQL(strSQL);
	return TRUE;
}

void CCourseIdlg::GenHelp(CString tCategory)
{
	CCourseSet rs;
	CString strSQL,strValue,strZero;
	BOOL Success;
	int nLen;

	//UpdateData();
	strSQL.Format("select length(trim(ccode)) from userdict where category=\'%s\' and rownum<2",tCategory);
	Success=rs.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
	if(!Success)
		return ;
	rs.GetFieldValue((short)0,strValue);
	nLen=atoi(strValue);
	rs.Close();

	strSQL.Format("select trim(ccode)||\'-\'||trim(ctext) from userdict where category=\'%s\'",tCategory);
	Success=rs.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
	if(Success)
	{
		strZero="";
		for(int i=0;i<nLen;i++)
			strZero+="0";
		while (!rs.IsEOF())
		{
			rs.GetFieldValue((short)0,strValue);
			
			
			if (strValue.Left(nLen)==strZero)
				m_help="  "+strValue.Mid(nLen+1);
			else
				m_help+="\r\n\t"+strValue;
			rs.MoveNext();
		}
		rs.Close();
	}
	UpdateData(FALSE);
}