| 网站首页 | 业界新闻 | 小组 | 威客 | 人才 | 下载频道 | 博客 | 代码贴 | 在线编程 | 编程论坛
欢迎加入我们,一同切磋技术
用户名:   
 
密 码:  
共有 700 人关注过本帖
标题:[求助]如何消除这条c++程序的错误(上次的搞错了)
只看楼主 加入收藏
gwlgqx
Rank: 1
等 级:新手上路
帖 子:18
专家分:0
注 册:2007-6-2
收藏
 问题点数:0 回复次数:4 
[求助]如何消除这条c++程序的错误(上次的搞错了)

// 仓库管理系统Dlg.cpp : implementation file
//


#include "stdafx.h"
#include "仓库管理系统.h"
#include "仓库管理系统Dlg.h"
#include "afxdb.h"
#include "odbcinst.h"


#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
extern CDatabase m_database;
extern CString username;
extern int userpower;

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA

// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL

// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyDlg dialog

CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
: CDialog(CMyDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CMyDlg)
m_userid = _T("");
m_password = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMyDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CMyDlg)
DDX_Text(pDX, IDC_USER_ID, m_userid);
DDX_Text(pDX, IDC_USER_PASSWORD, m_password);
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
//{{AFX_MSG_MAP(CMyDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_LOGIN, OnLogin)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyDlg message handlers

BOOL CMyDlg::OnInitDialog()
{
CDialog::OnInitDialog();

// Add "About..." menu item to system menu.

// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);

CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}

// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon

// TODO: Add extra initialization here

return TRUE; // return TRUE unless you set the focus to a control
}

void CMyDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}

// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.

void CMyDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting

SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;

// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}

// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CMyDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}

void CMyDlg::OnLogin()
{
UpdateData(TRUE);
CString sql,startdate,enddate;
if(!m_database.IsOpen())
if(!m_database.Open(_T("仓库管理系统")))
MessageBox("failed to open database!");
CLoginSet m_userset;
CString str;
if(m_userset.IsOpen())
{
m_userset.Close();
}
str.Format("select *from 用户密码表 where 用户 ID='%S' and 用户密码='%s'",m_userid,m_password);
m_userset.m_pDatabase=&m_database;
m_userset.Open(AFX_DB_USE_DEFAULT_TYPE,str);
if(m_userset.IsEOF())
{
MessageBox("数据库中没有相应的资料,请检查用户名密码是否正确");
m_userid="";
m_password="";
}
else
{
username.Format("%s",m_userset.m___ID);
userpower=m_userset.m_column2;
// MainDlg->ShowWindow(SW_SHOW);
//ShowWindow(SW_HIDE);
}
// TODO: Add your control notification handler code here

}
以下是所提示的错误:
--------------------Configuration: 仓库管理系统 - Win32 Debug--------------------
Compiling...
仓库管理系统Dlg.cpp
C:\Program Files\Microsoft Visual Studio\MyProjects\仓库管理系统\仓库管理系统Dlg.cpp(207) : error C2679: binary '=' : no operator defined which takes a right-hand operand of type 'class CString' (or there is no acceptable conversion)
Error executing cl.exe.

仓库管理系统.exe - 1 error(s), 0 warning(s)

搜索更多相关主题的帖子: 消除 
2007-08-06 20:57
gwlgqx
Rank: 1
等 级:新手上路
帖 子:18
专家分:0
注 册:2007-6-2
收藏
得分:0 
出错的位置是最下面的那行代码
userpower=m_userset.m_column2;
2007-08-06 21:09
maoguoqing
Rank: 6Rank: 6
来 自:重庆
等 级:贵宾
威 望:28
帖 子:2980
专家分:19
注 册:2005-12-5
收藏
得分:0 
你的 m_userset.m_column2 是个 int类型的值吗?

天行健,君子以自强不息!!QQ:68660681
2007-08-06 21:13
gwlgqx
Rank: 1
等 级:新手上路
帖 子:18
专家分:0
注 册:2007-6-2
收藏
得分:0 
m_column2 是不是表示数据库表中的一个字段,刚才试了一下不能强制转换,假如不是int的话又该怎么解决,帮我看看好吗?
2007-08-06 21:28
maoguoqing
Rank: 6Rank: 6
来 自:重庆
等 级:贵宾
威 望:28
帖 子:2980
专家分:19
注 册:2005-12-5
收藏
得分:0 
不了解CLoginSet 这个类,不是int你就肯定不能那样付值了呀

天行健,君子以自强不息!!QQ:68660681
2007-08-06 21:36
快速回复:[求助]如何消除这条c++程序的错误(上次的搞错了)
数据加载中...
 
   



关于我们 | 广告合作 | 编程中国 | 清除Cookies | TOP | 手机版

编程中国 版权所有,并保留所有权利。
Powered by Discuz, Processed in 0.069391 second(s), 8 queries.
Copyright©2004-2024, BCCN.NET, All Rights Reserved