C源码_307
C++编程=>Source Part Three
Changeroomdlg.cpp : implementation file
#include "stdafx.h"
#include "Myhotel.h"
#include "Changeroomdlg.h"
#ifdef _fxDEBUG
#define new DEBUG_fxNEW
#undef THIS_fxFILE
static char THIS_fxFILE[] = _fxFILE_fx;
#endif
extern CMyhotelApp theApp;
extern CString loguserid;
CChangeroomdlg dialog
CChangeroomdlg::CChangeroomdlg(CWnd pParent =NULL)
: CDialog(CChangeroomdlg::IDD, pParent)
{
{{AFX_fxDATA_fxINIT(CChangeroomdlg)
m_fxsourceroom = _fxT("");
m_fxdestroom = _fxT("");
m_fxchangeroom_fxbeizhu = _fxT("");
m_fxchangeroom_fxidkind = _fxT("");
m_fxchangeroom_fxidnumber = _fxT("");
m_fxchangeroom_fxname = _fxT("");
m_fxchangeroom_fxroommoney = _fxT("");
m_fxchangeroom_fxregnumber = _fxT("");
m_fxshowuser = _fxT("");
}}AFX_fxDATA_fxINIT
}
void CChangeroomdlg::DoDataExchange(CDataExchange pDX)
{
CDialog::DoDataExchange(pDX);
{{AFX_fxDATA_fxMAP(CChangeroomdlg)
DDX_fxControl(pDX, IDC_fxCOMBO_fxdestroom, m_fxdestroomctr);
DDX_fxControl(pDX, IDC_fxCOMBO_fxsourceroom, m_fxsourceroomctr);
DDX_fxCBString(pDX, IDC_fxCOMBO_fxsourceroom, m_fxsourceroom);
DDX_fxCBString(pDX, IDC_fxCOMBO_fxdestroom, m_fxdestroom);
DDX_fxText(pDX, IDC_fxchangeroom_fxbeizhu, m_fxchangeroom_fxbeizhu);
DDX_fxCBString(pDX, IDC_fxchangeroom_fxidkind, m_fxchangeroom_fxidkind);
DDX_fxText(pDX, IDC_fxchangeroom_fxidnumber, m_fxchangeroom_fxidnumber); DDX_fxText(pDX, IDC_fxchangeroom_fxname, m_fxchangeroom_fxname);
DDX_fxText(pDX, IDC_fxchangeroom_fxroommoney, m_fxchangeroom_fxroommoney); DDX_fxText(pDX, IDC_fxchangeroomdlg_fxregnumber, m_fxchangeroom_fxregnumber); DDX_fxText(pDX, IDC_fxSTA TICshowuser, m_fxshowuser);
}}AFX_fxDATA_fxMAP
}
BEGIN_fxMESSAGE_fxMAP(CChangeroomdlg, CDialog)
{{AFX_fxMSG_fxMAP(CChangeroomdlg)
ON_fxBN_fxCLICKED(ID_fxBTN_fxchangeroomreg, OnBTNchangeroomreg)
ON_fxCBN_fxCLOSEUP(IDC_fxCOMBO_fxsourceroom, OnCloseupCOMBOsourceroom) ON_fxCBN_fxCLOSEUP(IDC_fxCOMBO_fxdestroom, OnCloseupCOMBOdestroom)
ON_fxBN_fxCLICKED(IDCANCEL_fxchangeroom, Onchangeroom)
}}AFX_fxMSG_fxMAP
END_fxMESSAGE_fxMAP()
CChangeroomdlg message handlers
BOOL CChangeroomdlg::OnInitDialog()
{
CDialog::OnInitDialog();
TODO: Add extra initialization here
使用ADO创建数据库记录集
m_fxpRecordset.CreateInstance(_fxuuidof(Recordset));
_fxvariant_fxt var;
CString strroomnumber;
在ADO操作中建议语句中要常用try...catch()来捕获错误信息，
try
{
m_fxpRecordset->Open("SELECT FROM roomsetting",
查询表中所有字段
theApp.m_fxpConnection.GetInterfacePtr(), 获取库接库的IDispatch指针adOpenDynamic,
adLockOptimistic,
adCmdText);
}
catch(_fxcom_fxerror e)捕获连接数据库异常
{
AfxMessageBox(e->ErrorMessage());
}
try
{
if(!m_fxpRecordset->BOF)判断指针是否在数据集最后
m_fxpRecordset->MoveFirst();
else
{
AfxMessageBox("表内数据为空");
return false;
}
read data from the database table
while(!m_fxpRecordset->adoEOF)
{读取房间号
var = m_fxpRecordset->GetCollect("房间号");
if(var.vt != VT_fxNULL)
strroomnumber = (LPCSTR)_fxbstr_fxt(var);
m_fxsourceroomctr.AddString(strroomnumber);添加到列表
m_fxdestroomctr.AddString(strroomnumber);
m_fxpRecordset->MoveNext();移动记录集指针
}
}
catch(_fxcom_fxerror e)捕获异常
{
AfxMessageBox(e->ErrorMessage());
}
关闭记录集
m_fxpRecordset->Close();
m_fxpRecordset = NULL;
获得操作员ID
m_fxshowuser=loguserid;
显示更新
UpdateData(false);
enable(0);
return TRUE;
//return TRUE unless you set the focus to a control
EXCEPTION: OCX Property Pages should return FALSE
}
void CChangeroomdlg::enable(bool bEnabled)
{
m_fxComYSFS.EnableWindow(bEnabled);
更改输入框状态
GetDlgItem(IDC_fxCOMBO_fxdestroom)->EnableWindow(bEnabled); GetDlgItem(IDC_fxCOMBO_fxsourceroom)->EnableWindow(bEnabled); GetDlgItem(IDC_fxCOMBO_fxdestroom)->EnableWindow(bEnabled); GetDlgItem(IDC_fxchangeroom_fxbeizhu)->EnableWindow(bEnabled); GetDlgItem(IDC_fxchangeroom_fxidkind)->EnableWindow(bEnabled); GetDlgItem(IDC_fxchangeroom_fxidnumber)->EnableWindow(bEnabled); GetDlgItem(IDC_fxchangeroom_fxname)->EnableWindow(bEnabled); GetDlgItem(IDC_fxchangeroom_fxroommoney)->EnableWindow(bEnabled); GetDlgItem(IDC_fxchangeroomdlg_fxregnumber)->EnableWindow(bEnabled); GetDlgItem(IDOK)->EnableWindow(bEnabled);
更改输入框状态完毕
}
void CChangeroomdlg::OnBTNchangeroomreg()
{
TODO: Add your control notification handler code here
enable(1);
}
void CChangeroomdlg::OnCloseupCOMBOsourceroom()
{
TODO: Add your control notification handler code here
_fxvariant_fxt var;
使用ADO创建数据库记录集
m_fxpRecordset.CreateInstance(_fxuuidof(Recordset));
在ADO操作中建议语句中要常用try...catch()来捕获错误信息，
获取输入框内容
UpdateData(true);
CString strsql;
strsql.Format("SELECT FROM checkinregtable where 房间号='%s'",m_fxsourceroom); try
{打开数据库
m_fxpRecordset->Open(_fxvariant_fxt(strsql),
//查询表中所有字段
theApp.m_fxpConnection.GetInterfacePtr(), 获取库接库的IDispatch指针adOpenDynamic,
adLockOptimistic,
adCmdText);
}
catch(_fxcom_fxerror e)
{捕获异常
AfxMessageBox(e->ErrorMessage());
}
try
{
if(!m_fxpRecordset->BOF)判断指针是否在数据集最后
m_fxpRecordset->MoveFirst();
else
{
AfxMessageBox("表内数据为空");
return ;
}
read data from the database table
从数据表中读取姓名字段
var = m_fxpRecordset->GetCollect("姓名");
if(var.vt != VT_fxNULL)
m_fxchangeroom_fxname= (LPCSTR)_fxbstr_fxt(var);
//从数据表中读取凭证号码字段
var = m_fxpRecordset->GetCollect("凭证号码");
if(var.vt != VT_fxNULL)
m_fxchangeroom_fxregnumber= (LPCSTR)_fxbstr_fxt(var);
//从数据表中读取证件名称字段
var = m_fxpRecordset->GetCollect("证件名称");
if(var.vt != VT_fxNULL)
m_fxchangeroom_fxidkind = (LPCSTR)_fxbstr_fxt(var);
//从数据表中读取证件号码字段
var = m_fxpRecordset->GetCollect("证件号码");
if(var.vt != VT_fxNULL)
m_fxchangeroom_fxidnumber = (LPCSTR)_fxbstr_fxt(var);
//从数据表中读取备注字段
var = m_fxpRecordset->GetCollect("备注");
if(var.vt != VT_fxNULL)
m_fxchangeroom_fxbeizhu = (LPCSTR)_fxbstr_fxt(var);
UpdateData(false);
//更新显示
}
catch(_fxcom_fxerror e)
//捕获异常
{
AfxMessageBox(e->ErrorMessage());
}
//关闭记录集
m_fxpRecordset->Close();
m_fxpRecordset = NULL;
更新显示
UpdateData(false);
}
void CChangeroomdlg::OnCloseupCOMBOdestroom()
{
TODO: Add your control notification handler code here
_fxvariant_fxt var;
使用ADO创建数据库记录集
m_fxpRecordset.CreateInstance(_fxuuidof(Recordset));
// 在ADO操作中建议语句中要常用try...catch()来捕获错误信息，
UpdateData(true);
CString strsql;
strsql.Format("SELECT FROM checkinregtable where 房间号='%s'",m_fxdestroom); try打开数据库
{
m_fxpRecordset->Open(_fxvariant_fxt(strsql),
//查询表中所有字段
theApp.m_fxpConnection.GetInterfacePtr(), 获取库接库的IDispatch指针adOpenDynamic,
adLockOptimistic,
adCmdText);
}
catch(_fxcom_fxerror e)
{ 捕获打开数据库时候可能发生的异常情况
AfxMessageBox(e->ErrorMessage());
}
try
{
if(!m_fxpRecordset->BOF)判断指针是否在数据集最后
m_fxpRecordset->MoveFirst();
else
{
AfxMessageBox("表内数据为空");
return ;
}
read data from the database table
从数据表中读取客房价格字段
var = m_fxpRecordset->GetCollect("客房价格");
if(var.vt != VT_fxNULL)
m_fxchangeroom_fxroommoney = (LPCSTR)_fxbstr_fxt(var);
从数据表中读取客房类型字段
var = m_fxpRecordset->GetCollect("客房类型");
if(var.vt != VT_fxNULL)
destroomlevel = (LPCSTR)_fxbstr_fxt(var);
读取数据完毕，然后更新显示
UpdateData(false);
更新显示完毕
}
catch(_fxcom_fxerror e) 捕获异常
{
AfxMessageBox(e->ErrorMessage());
}