MFC选择文件(夹)按钮实现

MFC选择文件(夹)按钮实现

选择文件(夹)

void CFileSelectDlg::OnBnClickedButtonSelect()
{
    if(((CButton*)(GetDlgItem(IDC_RADIO_FILE)))->GetCheck())
    {
        char strExt[5] = "dat";//设置文件的读取类型
        CString szFilter = "GeoTiff Files (*.dat)|*.dat|All Files (*.*)|*.*||";
        SelectFile(strExt,szFilter);
    }
    else
    {
        CString floder = SelectFolder();
        SetDlgItemText(IDC_EDIT_PATH,floder);
    }
}

选择文件

bool CFileSelectDlg::SelectFile(char* strExt,CString const& szFilter)
{
    CFileDialog    dlg(TRUE,strExt,NULL,OFN_FILEMUSTEXIST | OFN_HIDEREADONLY | OFN_ALLOWMULTISELECT,szFilter);
    dlg.m_ofn.lpstrTitle = "请选择缓存文件";
    CString inPath;
    CArray<CString,CString> aryFilename;
    if(dlg.DoModal() == IDOK)
    {
        CString filenames;
        POSITION posFile = dlg.GetStartPosition();
        while(posFile != NULL)
        {
            aryFilename.Add(dlg.GetNextPathName(posFile));
        }
    }
    
    int SelFileNum = aryFilename.GetSize();
    if(SelFileNum==0)
    {
        AfxMessageBox("没有选择缓存文件");
        return false;
    }
    return true;
}

选择文件夹

CString CFileSelectDlg::SelectFolder()
{
    TCHAR            szFolderPath[255] = {0};
    CString          strFolderPath;
    BROWSEINFO       sInfo;
    ::ZeroMemory(&sInfo,sizeof(BROWSEINFO));
    sInfo.pidlRoot = 0;
    sInfo.lpszTitle = "请选择缓存文件所在文件夹";
    sInfo.ulFlags = BIF_RETURNONLYFSDIRS | BIF_EDITBOX |BIF_DONTGOBELOWDOMAIN;
    sInfo.lpfn = NULL;

    LPITEMIDLIST    lpidlBrowse = ::SHBrowseForFolder(&sInfo);
    if(lpidlBrowse != NULL)
    {
        if(::SHGetPathFromIDListA(lpidlBrowse,szFolderPath))
        {
            strFolderPath = szFolderPath;
        }
    }
    if(lpidlBrowse != NULL)
    {
        ::CoTaskMemFree(lpidlBrowse);
    }
    return strFolderPath;    
}