mfc中文件的操作

1、打开文件夹的使用void CFileRW::Onsource() {// TODO: Add your control notification handler code here//此函数用来选择源文件CString strFilter;strFilter="All Files(*.*)|*.*||";CFileDialog dlg(TRUE, NULL, NULL, OFN_EXPLORER|OFN_HIDEREADONLY|OFN_ENABLESIZING|OFN_FILEMUSTEXIST,strFilter);dlg.m_ofn.lStructSize = sizeof(OPENFILENAME);if(dlg.DoModal() == IDOK ){m_sourcePath=dlg.GetPathName();} UpdateData(FALSE);}

2、浏览文件夹

void CFileRW::Ondestination() {// TODO: Add your control notification handler code here//声明一个文件夹浏览结构LPBROWSEINFO lpbi=new BROWSEINFO;lpbi->hwndOwner=GetSafeHwnd();//NULL;lpbi->pidlRoot=NULL;lpbi->pszDisplayName=NULL;lpbi->lpszTitle="请选择要写文件的的位置:";lpbi->ulFlags=BIF_RETURNONLYFSDIRS|BIF_STATUSTEXT;lpbi->lpfn=NULL;//显示外壳文件夹以便用户选择 LPITEMIDLIST lpitemidlist=SHBrowseForFolder(lpbi); if(lpitemidlist==NULL){delete lpbi;lpbi = NULL;return;}char path[MAX_PATH];//转换项目标志符列表为一个系统文件路径SHGetPathFromIDList(lpitemidlist,path);delete lpbi; m_destinationPath = path; UpdateData(FALSE);}

3、ListView的使用

（1）、对其初始化

void CListViewView::OnInitialUpdate(){CListView::OnInitialUpdate();// TODO: You may populate your ListView with items by directly accessing// its list control through a call to GetListCtrl().int nColumns = 20;//列数int nRows = 50;//行数CListCtrl *ctl;//获取列表视所对应的列表控件ctl=&GetListCtrl();//设置列表控件的北京颜色ctl->SetTextBkColor(RGB(192,192,192));//设置列的题头ctl->InsertColumn (0, _T("#"), LVCFMT_LEFT, 20);//插入列头for (int nColumn = 1; nColumn < nColumns - 1; nColumn++){ctl->InsertColumn (nColumn, CString ((TCHAR)(_T('A') + /nColumn - 1)), LVCFMT_LEFT, 70);}//插入列表记录for (int i = 0; i < nRows; i++){CString str;str.Format ("%d", i);ctl->InsertItem (i, str);ctl->SetItemData (i, i);for (nColumn = 1; nColumn < nColumns - 1; nColumn++){str.Format ("Item (%d, %d)", nColumn - 1, i);ctl->SetItemText (i, nColumn, str);}}//设置列表控件风格DWORD dwStyle;dwStyle=::GetWindowLong(ctl->m_hWnd,GWL_STYLE); dwStyle|=LVS_REPORT|LVS_SHOWSELALWAYS|LVS_EDITLABELS;::SetWindowLong(ctl->m_hWnd,GWL_STYLE,dwStyle);dwStyle=ctl->GetExtendedStyle();dwStyle|= LVS_EX_GRIDLINES|LVS_EX_FULLROWSELECT|/LVS_EX_HEADERDRAGDROP|LVS_EX_TRACKSELECT; ctl->SetExtendedStyle(dwStyle);CListView::OnInitialUpdate();}

（2）、对其进行操作

void CListViewView::OnCStdioFile() {// TODO: Add your command handler code hereCListCtrl *ctl;//获取列表控件ctl=&GetListCtrl();CString strHint;//打开文件对话框CFileDialog myFileDlg(FALSE,"txt",_T("CStdioFile写文件"),NULL, "Text(*.txt)|*.txt|All Files(*.*)|*.*||",NULL);myFileDlg.m_ofn.lpstrTitle=_T("请选择保存路径:");//文件名CString strfilename;if(myFileDlg.DoModal()!=IDOK)return;strfilename=myFileDlg.GetFileName();CString strSub;CString str1;//定义CStdioFile对象CStdioFile ExportFile;ExportFile.Open(strfilename,CFile::modeCreate|CFile::modeWrite,NULL);//访问列表控件成员int iHdrItemCount;//字段数int iListItemCount;//记录数//获取列表头控件CHeaderCtrl* pHdrCtl=ctl->GetHeaderCtrl();iHdrItemCount=pHdrCtl->GetItemCount();iListItemCount=ctl->GetItemCount();CString strCount;strCount.Format("共有记录:%d条。",iListItemCount);CString time;//GetCurrentTime() 属于类的静态成员函数，因此直接调用CTime t=CTime::GetCurrentTime();CString strTime="CStdioFile文件建立于：20%y-%m-%d %H:%M:%S ";strTime=t.Format(strTime);strTime+=strCount;ExportFile.WriteString(strTime+"/n/n");//提示信息strHint.Format("开始写文件%s",strfilename);AfxMessageBox(strHint);//控件标签文字LVCOLUMN lvcom;lvcom.mask = LVCF_TEXT;lvcom.cchTextMax = _MAX_PATH;char strCaption[_MAX_PATH];lvcom.pszText =strCaption;//lvcom.pszText = new char[_MAX_PATH];for(int k=0;k<iHdrItemCount;k++){ctl->GetColumn(k,&lvcom);str1.Format("%s",lvcom.pszText);strSub+=MakeStr(str1,15);}ExportFile.WriteString(strSub+"/n");strSub="";int j=ctl->GetItemCount();int jj=ctl->GetHeaderCtrl()->GetItemCount();for(int i=0;i<j;i++){for(int k=0;k<jj;k++){ str1=ctl->GetItemText(i,k);strSub+=MakeStr(str1,15);}ExportFile.WriteString(strSub+"/n");//清空更新strSub=""; }ExportFile.Close();//提示信息strHint.Format("文件写到%s完毕",strfilename);AfxMessageBox(strHint);}CString CListViewView::MakeStr(CString &str, short size){CONST int STR_LEN = 20;char buf[STR_LEN];//将内存全置' 'for(int i=0;i<size;++i)buf[i]=' ';CString str1;str1.Format("%s",buf);str+=str1;return str.Left(size);}