classeditdlg.cpp

c++学生成绩管理系统,功能比较完善的中级管理系统

// ClassEditDlg.cpp : implementation file
//

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

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

/////////////////////////////////////////////////////////////////////////////
// CClassEditDlg dialog


CClassEditDlg::CClassEditDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CClassEditDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CClassEditDlg)
	m_classname = _T("");
	m_classximing = _T("");
	m_zhuanyie = _T("");
	m_strclassno = _T("");
	//}}AFX_DATA_INIT
}


void CClassEditDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CClassEditDlg)
	DDX_Control(pDX, IDC_CLASSNO, m_classno);
	DDX_Text(pDX, IDC_CLASSNAME, m_classname);
	DDX_Text(pDX, IDC_XIMING, m_classximing);
	DDX_Text(pDX, IDC_ZHUANYIE, m_zhuanyie);
	DDX_Text(pDX, IDC_CLASSNO, m_strclassno);
	//}}AFX_DATA_MAP
}


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

/////////////////////////////////////////////////////////////////////////////
// CClassEditDlg message handlers

void CClassEditDlg::OnOK() 
{
	// TODO: Add extra validation here
	TCHAR classno[20];
	CString oldno,oldname;
	oldno=m_strclassno;
	oldname=m_classname;
	BOOL chongtu;
	chongtu=FALSE;
	UpdateData(TRUE);
	m_classno.GetWindowText(classno,20);
	//检查
	if(m_strclassno=="")
	{
		MessageBox("请输入班级号");
		return;
	}
	else
	{
		if(!m_classset.IsOpen())
			m_classset.Open();
		if(!m_classset.IsBOF())
			m_classset.MoveFirst();
		do
		{
			if(m_classset.m_column1==classno && m_classset.m_column2!=oldname)
			{
				MessageBox("记录已存在,请检查班级号");
				chongtu=TRUE;
				break;
			}
			m_classset.MoveNext();
		}while(!m_classset.IsEOF());
		if(m_classset.IsOpen())
			m_classset.Close();
		if(chongtu)
			return;
	}
	//
	if(m_classname=="")
	{
		MessageBox("请输入班级名");
		return;
	}
	//
	if(m_zhuanyie=="")
	{
		MessageBox("请输入专业名");
		return;
	}
	////////////修改
	if(!m_classset.IsOpen())
		m_classset.Open();
	if(!m_classset.IsBOF())
		m_classset.MoveFirst();
	do
	{
		if(m_classset.m_column1==oldno && m_classset.m_column2==oldname)
		{
			m_classset.Edit();
			m_classset.SetFieldValue(_T("班级号"),(LPCTSTR)m_strclassno);
			m_classset.SetFieldValue(_T("班级名"),(LPCTSTR)m_classname);
			m_classset.SetFieldValue(_T("专业名"),(LPCTSTR)m_zhuanyie);
			m_classset.SetFieldValue(_T("系名"),(LPCTSTR)m_classximing);
			if(m_classset.CanUpdate())
				m_classset.Update();
			break;
		}
		m_classset.MoveNext();
	}while(!m_classset.IsEOF());
	if(m_classset.IsOpen())
		m_classset.Close();
	CDialog::OnOK();
}