studentadddlg.cpp

c++学生成绩管理系统,功能比较完善的中级管理系统

// StudentAddDlg.cpp : implementation file
//

#include "stdafx.h"
#include "学生成绩管理系统.h"
#include "StudentAddDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CStudentAddDlg dialog


CStudentAddDlg::CStudentAddDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CStudentAddDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CStudentAddDlg)
	m_studentname = _T("");
	m_studentno = _T("");
	//}}AFX_DATA_INIT
}


void CStudentAddDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CStudentAddDlg)
	DDX_Control(pDX, IDC_EDITNO, m_no);
	DDX_Control(pDX, IDC_COMBOCLASS, m_comboclass);
	DDX_Text(pDX, IDC_EDITNAME, m_studentname);
	DDX_Text(pDX, IDC_EDITNO, m_studentno);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CStudentAddDlg, CDialog)
	//{{AFX_MSG_MAP(CStudentAddDlg)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CStudentAddDlg message handlers

BOOL CStudentAddDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	if(!m_classset.IsOpen())
		m_classset.Open();
	if(!m_classset.IsBOF())
		m_classset.MoveFirst();
	do
	{
		m_comboclass.AddString(m_classset.m_column2);
		if(!m_classset.IsEOF())
			m_classset.MoveNext();
	}while(!m_classset.IsEOF());
	if(m_classset.IsOpen())
		m_classset.Close();
	m_comboclass.SetCurSel(0);
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CStudentAddDlg::OnOK() 
{
	// TODO: Add extra validation here
	BOOL cunzai;
	UpdateData(TRUE);
	if(m_studentno=="")
	{
		MessageBox("请输入学号");
		return;
	}
	else
	{	
		TCHAR no[20];
		m_no.GetWindowText(no,20);
		cunzai=FALSE;
		if(!m_studentset.IsOpen())
			m_studentset.Open();
		if(!m_studentset.IsBOF())
			m_studentset.MoveFirst();
		do
		{
			if(m_studentset.m_column1==no)
			{
				MessageBox("该学生已存在,请检查学号是否正确");
				cunzai=TRUE;
				break;
			}
			m_studentset.MoveNext();
		}while(!m_studentset.IsEOF());
		if(m_studentset.IsOpen())
			m_studentset.Close();
		if(cunzai)
			return;
	}
	if(m_studentname=="")
	{
		MessageBox("请输入姓名");
		return;
	}
	if(m_comboclass.GetCurSel()>=0)
	{
		
		CString m_class;
		m_comboclass.GetLBText(m_comboclass.GetCurSel(),m_class);
		if(!m_classset.IsOpen())
			m_classset.Open();
		if(!m_classset.IsBOF())
			m_classset.MoveFirst();
		do
		{
			if(m_classset.m_column2==m_class)
			{
				m_class=m_classset.m_column1;
				break;
			}
		m_classset.MoveNext();
		}while(!m_classset.IsEOF());
		if(m_classset.IsOpen())
			m_classset.Close();
		///
		if(!m_studentset.IsOpen())
			m_studentset.Open();
		if(!m_studentset.IsEOF())
			m_studentset.MoveLast();
		m_studentset.AddNew();
		m_studentset.SetFieldValue(_T("学号"),(LPCTSTR)m_studentno);
		m_studentset.SetFieldValue(_T("姓名"),(LPCTSTR)m_studentname);
		m_studentset.SetFieldValue(_T("班级号"),(LPCTSTR)m_class);
		if(m_studentset.CanUpdate())
			m_studentset.Update();
		if(m_studentset.IsOpen())
			m_studentset.Close();
	}
	else
	{
		MessageBox("请选择班级");
		return;
	}	
	CDialog::OnOK();
}